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annotate sms.c @ 2500:d44fe974fb85

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Get blastem compiling with new 68K core
author Michael Pavone <pavone@retrodev.com>
date Tue, 30 Apr 2024 22:32:08 -0700
parents 767ec72acca7
children 8cf7cadc17ee
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928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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1 #include <string.h>
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2 #include <stdlib.h>
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3 #include <stddef.h>
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ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
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4 #include "config.h"
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5 #include "sms.h"
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6 #include "blastem.h"
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7 #include "render.h"
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8 #include "util.h"
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6b5c92b6205c Enabled Z80 debugger in PBC mode
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9 #include "debug.h"
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da1dce39e846 Refactored save slot related logic to reduce duplication and allow reuse in new UI. Get state loading/saving mostly working in new UI
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10 #include "saves.h"
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430dd12e4010 Refactor to split device bindings from IO emulation code
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11 #include "bindings.h"
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12
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13 #ifdef NEW_CORE
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14 #define Z80_CYCLE cycles
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15 #define Z80_OPTS opts
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16 #define z80_handle_code_write(...)
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17 #else
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18 #define Z80_CYCLE current_cycle
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19 #define Z80_OPTS options
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20 #endif
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21
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22 static void *memory_io_write(uint32_t location, void *vcontext, uint8_t value)
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23 {
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24 z80_context *z80 = vcontext;
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25 sms_context *sms = z80->system;
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26 if (location & 1) {
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27 uint8_t fuzzy_ctrl_0 = sms->io.ports[0].control, fuzzy_ctrl_1 = sms->io.ports[1].control;
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28 io_control_write(sms->io.ports, (~value) << 5 & 0x60, z80->Z80_CYCLE);
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29 fuzzy_ctrl_0 |= sms->io.ports[0].control;
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30 io_control_write(sms->io.ports+1, (~value) << 3 & 0x60, z80->Z80_CYCLE);
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31 fuzzy_ctrl_1 |= sms->io.ports[1].control;
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32 if (
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33 (fuzzy_ctrl_0 & 0x40 & (sms->io.ports[0].output ^ (value << 1)) & (value << 1))
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34 || (fuzzy_ctrl_0 & 0x40 & (sms->io.ports[1].output ^ (value >> 1)) & (value >> 1))
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35 ) {
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36 //TH is an output and it went from 0 -> 1
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37 vdp_run_context(sms->vdp, z80->Z80_CYCLE);
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38 vdp_latch_hv(sms->vdp);
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39 }
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40 io_data_write(sms->io.ports, value << 1, z80->Z80_CYCLE);
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41 io_data_write(sms->io.ports + 1, value >> 1, z80->Z80_CYCLE);
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42 } else {
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43 //TODO: memory control write
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44 }
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45 return vcontext;
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46 }
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47
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48 static uint8_t hv_read(uint32_t location, void *vcontext)
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49 {
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50 z80_context *z80 = vcontext;
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51 sms_context *sms = z80->system;
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52 vdp_run_context(sms->vdp, z80->Z80_CYCLE);
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53 uint16_t hv = vdp_hv_counter_read(sms->vdp);
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54 if (location & 1) {
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55 return hv;
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56 } else {
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57 return hv >> 8;
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58 }
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59 }
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60
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61 static void *sms_psg_write(uint32_t location, void *vcontext, uint8_t value)
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62 {
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63 z80_context *z80 = vcontext;
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64 sms_context *sms = z80->system;
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65 psg_run(sms->psg, z80->Z80_CYCLE);
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66 psg_write(sms->psg, value);
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67 return vcontext;
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68 }
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69
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70 static void update_interrupts(sms_context *sms)
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71 {
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72 uint32_t vint = vdp_next_vint(sms->vdp);
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73 uint32_t hint = vdp_next_hint(sms->vdp);
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74 #ifdef NEW_CORE
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75 sms->z80->int_cycle = vint < hint ? vint : hint;
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76 z80_sync_cycle(sms->z80, sms->z80->sync_cycle);
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77 #else
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78 sms->z80->int_pulse_start = vint < hint ? vint : hint;
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79 #endif
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80 }
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81
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82 static uint8_t vdp_read(uint32_t location, void *vcontext)
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83 {
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84 z80_context *z80 = vcontext;
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85 sms_context *sms = z80->system;
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86 vdp_run_context(sms->vdp, z80->Z80_CYCLE);
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87 if (location & 1) {
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88 uint8_t ret = vdp_control_port_read(sms->vdp);
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89 sms->vdp->flags2 &= ~(FLAG2_VINT_PENDING|FLAG2_HINT_PENDING);
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90 update_interrupts(sms);
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91 return ret;
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92 } else {
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93 return vdp_data_port_read_pbc(sms->vdp);
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94 }
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95 }
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96
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97 static void *vdp_write(uint32_t location, void *vcontext, uint8_t value)
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98 {
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99 z80_context *z80 = vcontext;
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100 sms_context *sms = z80->system;
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101 if (location & 1) {
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102 vdp_run_context_full(sms->vdp, z80->Z80_CYCLE);
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103 vdp_control_port_write_pbc(sms->vdp, value);
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104 update_interrupts(sms);
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105 } else {
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106 vdp_run_context(sms->vdp, z80->Z80_CYCLE);
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107 vdp_data_port_write_pbc(sms->vdp, value);
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108 }
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109 return vcontext;
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110 }
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111
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112 static uint8_t io_read(uint32_t location, void *vcontext)
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113 {
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114 z80_context *z80 = vcontext;
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115 sms_context *sms = z80->system;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
116 if (location == 0xC0 || location == 0xDC) {
1752
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parents: 1690
diff changeset
117 uint8_t port_a = io_data_read(sms->io.ports, z80->Z80_CYCLE);
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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parents: 1690
diff changeset
118 uint8_t port_b = io_data_read(sms->io.ports+1, z80->Z80_CYCLE);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
119 return (port_a & 0x3F) | (port_b << 6);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
120 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
121 if (location == 0xC1 || location == 0xDD) {
1752
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parents: 1690
diff changeset
122 uint8_t port_a = io_data_read(sms->io.ports, z80->Z80_CYCLE);
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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parents: 1690
diff changeset
123 uint8_t port_b = io_data_read(sms->io.ports+1, z80->Z80_CYCLE);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
124 return (port_a & 0x40) | (port_b >> 2 & 0xF) | (port_b << 1 & 0x80) | 0x10;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
125 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
126 return 0xFF;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
127 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
128
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parents: 1401
diff changeset
129 static void update_mem_map(uint32_t location, sms_context *sms, uint8_t value)
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
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parents: 1130
diff changeset
130 {
1433
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parents: 1401
diff changeset
131 z80_context *z80 = sms->z80;
1142
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
132 void *old_value;
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diff changeset
133 if (location) {
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
134 uint32_t idx = location - 1;
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
135 old_value = z80->mem_pointers[idx];
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
136 z80->mem_pointers[idx] = sms->rom + (value << 14 & (sms->rom_size-1));
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
137 if (old_value != z80->mem_pointers[idx]) {
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
138 //invalidate any code we translated for the relevant bank
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
139 z80_invalidate_code_range(z80, idx ? idx * 0x4000 : 0x400, idx * 0x4000 + 0x4000);
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
140 }
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
141 } else {
1149
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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diff changeset
142 old_value = z80->mem_pointers[2];
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parents: 1148
diff changeset
143 if (value & 8) {
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Michael Pavone <pavone@retrodev.com>
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diff changeset
144 //cartridge RAM is enabled
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
145 z80->mem_pointers[2] = sms->cart_ram + (value & 4 ? (SMS_CART_RAM_SIZE/2) : 0);
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
146 } else {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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diff changeset
147 //cartridge RAM is disabled
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Michael Pavone <pavone@retrodev.com>
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diff changeset
148 z80->mem_pointers[2] = sms->rom + (sms->bank_regs[3] << 14 & (sms->rom_size-1));
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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149 }
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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diff changeset
150 if (old_value != z80->mem_pointers[2]) {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
151 //invalidate any code we translated for the relevant bank
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diff changeset
152 z80_invalidate_code_range(z80, 0x8000, 0xC000);
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
153 }
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
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diff changeset
154 }
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
155 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
156
2320
8016dbb0fcde Initial work on ROM DB support for SMS/GG games
Michael Pavone <pavone@retrodev.com>
parents: 2302
diff changeset
157 void *sms_sega_mapper_write(uint32_t location, void *vcontext, uint8_t value)
1433
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parents: 1401
diff changeset
158 {
c886c54d8cf1 Added save states to SMS emulation
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parents: 1401
diff changeset
159 z80_context *z80 = vcontext;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
160 sms_context *sms = z80->system;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
161 location &= 3;
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Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
162 sms->ram[0x1FFC + location] = value;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
163 sms->bank_regs[location] = value;
c886c54d8cf1 Added save states to SMS emulation
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parents: 1401
diff changeset
164 update_mem_map(location, sms, value);
1141
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diff changeset
165 return vcontext;
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diff changeset
166 }
7e199bebde2f Initial support for Sega's family of SMS mappers
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parents: 1130
diff changeset
167
2321
2eda5f81f91e More fully baked ROM db support for SMS
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parents: 2320
diff changeset
168 void *sms_cart_ram_write(uint32_t location, void *vcontext, uint8_t value)
1149
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parents: 1148
diff changeset
169 {
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parents: 1148
diff changeset
170 z80_context *z80 = vcontext;
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diff changeset
171 sms_context *sms = z80->system;
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parents: 1148
diff changeset
172 if (sms->bank_regs[0] & 8) {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
173 //cartridge RAM is enabled
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parents: 1148
diff changeset
174 location &= 0x3FFF;
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diff changeset
175 z80->mem_pointers[2][location] = value;
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parents: 1148
diff changeset
176 z80_handle_code_write(0x8000 + location, z80);
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
177 }
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parents: 1148
diff changeset
178 return vcontext;
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parents: 1148
diff changeset
179 }
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diff changeset
180
2325
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parents: 2321
diff changeset
181 static z80_context *codemasters_write(uint8_t bank, z80_context *z80, uint8_t value)
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
182 {
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
183 sms_context *sms = z80->system;
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
184 if (value != sms->bank_regs[bank]) {
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
185 sms->bank_regs[bank] = value;
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
186 value &= 0x7F;
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parents: 2321
diff changeset
187 z80->mem_pointers[bank] = sms->rom + (value << 14 & (sms->rom_size-1));
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parents: 2321
diff changeset
188 z80_invalidate_code_range(z80, bank * 0x4000, bank * 0x4000 + 0x4000);
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
189 }
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
190 return z80;
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
191 }
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
192
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
193 void *sms_codemasters_bank0_write(uint32_t location, void *vcontext, uint8_t value)
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parents: 2321
diff changeset
194 {
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
195 return codemasters_write(0, vcontext, value);
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
196 }
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
197
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
198 void *sms_codemasters_bank1_write(uint32_t location, void *vcontext, uint8_t value)
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parents: 2321
diff changeset
199 {
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
200 return codemasters_write(1, vcontext, value);
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
201 }
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
202
26597f9805b4 Initial Codemasters mapper support
Michael Pavone <pavone@retrodev.com>
parents: 2321
diff changeset
203 void *sms_codemasters_bank2_write(uint32_t location, void *vcontext, uint8_t value)
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
204 {
26597f9805b4 Initial Codemasters mapper support
Michael Pavone <pavone@retrodev.com>
parents: 2321
diff changeset
205 //TODO: Handle Ernie Els Golf cart RAM
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
206 return codemasters_write(2, vcontext, value);
26597f9805b4 Initial Codemasters mapper support
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parents: 2321
diff changeset
207 }
26597f9805b4 Initial Codemasters mapper support
Michael Pavone <pavone@retrodev.com>
parents: 2321
diff changeset
208
1149
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
209 uint8_t debug_commands(system_header *system, char *input_buf)
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
210 {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
211 sms_context *sms = (sms_context *)system;
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
212 switch(input_buf[0])
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parents: 1148
diff changeset
213 {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
214 case 'v':
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
215 if (input_buf[1] == 'r') {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
216 vdp_print_reg_explain(sms->vdp);
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
217 } else if (input_buf[1] == 's') {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
218 vdp_print_sprite_table(sms->vdp);
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
219 } else {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
220 return 0;
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
221 }
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
222 break;
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
223 }
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
224 return 1;
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
225 }
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
226
2195
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parents: 2194
diff changeset
227 static uint8_t gg_io_read(uint32_t location, void *vcontext)
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
228 {
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
229 z80_context *z80 = vcontext;
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
230 sms_context *sms = z80->system;
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
231 if (!location) {
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
232 return sms->start_button_region;
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
233 } else {
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
234 //TODO: implement link port
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
235 return 0xFF;
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
236 }
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
237 }
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
238
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
239 static void *gg_io_write(uint32_t location, void *vcontext, uint8_t value)
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
240 {
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
241 //TODO: implement link port
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
242 return vcontext;
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
243 }
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
244 static void *psg_pan_write(uint32_t location, void *vcontext, uint8_t value)
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
245 {
2196
2648081f3100 Implement Game Gear PSG panning
Michael Pavone <pavone@retrodev.com>
parents: 2195
diff changeset
246 z80_context *z80 = vcontext;
2648081f3100 Implement Game Gear PSG panning
Michael Pavone <pavone@retrodev.com>
parents: 2195
diff changeset
247 sms_context *sms = z80->system;
2648081f3100 Implement Game Gear PSG panning
Michael Pavone <pavone@retrodev.com>
parents: 2195
diff changeset
248 psg_run(sms->psg, z80->Z80_CYCLE);
2648081f3100 Implement Game Gear PSG panning
Michael Pavone <pavone@retrodev.com>
parents: 2195
diff changeset
249 sms->psg->pan = value;
2195
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
250 return vcontext;
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
251 }
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
252 static memmap_chunk io_map[] = {
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
253 {0x00, 0x40, 0xFF, .write_8 = memory_io_write},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
254 {0x40, 0x80, 0xFF, .read_8 = hv_read, .write_8 = sms_psg_write},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
255 {0x80, 0xC0, 0xFF, .read_8 = vdp_read, .write_8 = vdp_write},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
256 {0xC0, 0x100,0xFF, .read_8 = io_read}
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
257 };
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
258
2195
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
259 static memmap_chunk io_gg[] = {
2197
74b92e20e2ef Fix off by one in PSG pan register mapping
Michael Pavone <pavone@retrodev.com>
parents: 2196
diff changeset
260 {0x00, 0x06, 0xFF, .read_8 = gg_io_read, .write_8 = gg_io_write},
74b92e20e2ef Fix off by one in PSG pan register mapping
Michael Pavone <pavone@retrodev.com>
parents: 2196
diff changeset
261 {0x06, 0x07, 0xFF, .write_8 = psg_pan_write},
2195
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
262 {0x08, 0x40, 0xFF, .write_8 = memory_io_write},
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
263 {0x40, 0x80, 0xFF, .read_8 = hv_read, .write_8 = sms_psg_write},
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
264 {0x80, 0xC0, 0xFF, .read_8 = vdp_read, .write_8 = vdp_write},
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
265 {0xC0, 0x100,0xFF, .read_8 = io_read}
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
266 };
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
267
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
268 static void set_speed_percent(system_header * system, uint32_t percent)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
269 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
270 sms_context *context = (sms_context *)system;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
271 uint32_t old_clock = context->master_clock;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
272 context->master_clock = ((uint64_t)context->normal_clock * (uint64_t)percent) / 100;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
273
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
274 psg_adjust_master_clock(context->psg, context->master_clock);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
275 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
276
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
277 void sms_serialize(sms_context *sms, serialize_buffer *buf)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
278 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
279 start_section(buf, SECTION_Z80);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
280 z80_serialize(sms->z80, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
281 end_section(buf);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
282
1433
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Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
283 start_section(buf, SECTION_VDP);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
284 vdp_serialize(sms->vdp, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
285 end_section(buf);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
286
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
287 start_section(buf, SECTION_PSG);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
288 psg_serialize(sms->psg, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
289 end_section(buf);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
290
1433
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Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
291 start_section(buf, SECTION_SEGA_IO_1);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
292 io_serialize(sms->io.ports, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
293 end_section(buf);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
294
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
295 start_section(buf, SECTION_SEGA_IO_2);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
296 io_serialize(sms->io.ports + 1, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
297 end_section(buf);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
298
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
299 start_section(buf, SECTION_MAIN_RAM);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
300 save_int8(buf, sizeof(sms->ram) / 1024);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
301 save_buffer8(buf, sms->ram, sizeof(sms->ram));
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
302 end_section(buf);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
303
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
304 start_section(buf, SECTION_MAPPER);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
305 save_int8(buf, 1);//mapper type, 1 for Sega mapper
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
306 save_buffer8(buf, sms->bank_regs, sizeof(sms->bank_regs));
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
307 end_section(buf);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
308
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
309 start_section(buf, SECTION_CART_RAM);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
310 save_int8(buf, SMS_CART_RAM_SIZE / 1024);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
311 save_buffer8(buf, sms->cart_ram, SMS_CART_RAM_SIZE);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
312 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
313 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
314
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
315 static uint8_t *serialize(system_header *sys, size_t *size_out)
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
316 {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
317 sms_context *sms = (sms_context *)sys;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
318 serialize_buffer state;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
319 init_serialize(&state);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
320 sms_serialize(sms, &state);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
321 if (size_out) {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
322 *size_out = state.size;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
323 }
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
324 return state.data;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
325 }
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
326
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
327 static void ram_deserialize(deserialize_buffer *buf, void *vsms)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
328 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
329 sms_context *sms = vsms;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
330 uint32_t ram_size = load_int8(buf) * 1024;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
331 if (ram_size > sizeof(sms->ram)) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
332 fatal_error("State has a RAM size of %d bytes", ram_size);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
333 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
334 load_buffer8(buf, sms->ram, ram_size);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
335 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
336
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
337 static void cart_ram_deserialize(deserialize_buffer *buf, void *vsms)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
338 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
339 sms_context *sms = vsms;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
340 uint32_t ram_size = load_int8(buf) * 1024;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
341 if (ram_size > SMS_CART_RAM_SIZE) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
342 fatal_error("State has a cart RAM size of %d bytes", ram_size);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
343 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
344 load_buffer8(buf, sms->cart_ram, ram_size);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
345 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
346
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
347 static void mapper_deserialize(deserialize_buffer *buf, void *vsms)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
348 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
349 sms_context *sms = vsms;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
350 uint8_t mapper_type = load_int8(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
351 if (mapper_type != 1) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
352 warning("State contains an unrecognized mapper type %d, it may be from a newer version of BlastEm\n", mapper_type);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
353 return;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
354 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
355 for (int i = 0; i < sizeof(sms->bank_regs); i++)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
356 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
357 sms->bank_regs[i] = load_int8(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
358 update_mem_map(i, sms, sms->bank_regs[i]);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
359 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
360 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
361
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
362 void sms_deserialize(deserialize_buffer *buf, sms_context *sms)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
363 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
364 register_section_handler(buf, (section_handler){.fun = z80_deserialize, .data = sms->z80}, SECTION_Z80);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
365 register_section_handler(buf, (section_handler){.fun = vdp_deserialize, .data = sms->vdp}, SECTION_VDP);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
366 register_section_handler(buf, (section_handler){.fun = psg_deserialize, .data = sms->psg}, SECTION_PSG);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
367 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = sms->io.ports}, SECTION_SEGA_IO_1);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
368 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = sms->io.ports + 1}, SECTION_SEGA_IO_2);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
369 register_section_handler(buf, (section_handler){.fun = ram_deserialize, .data = sms}, SECTION_MAIN_RAM);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
370 register_section_handler(buf, (section_handler){.fun = mapper_deserialize, .data = sms}, SECTION_MAPPER);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
371 register_section_handler(buf, (section_handler){.fun = cart_ram_deserialize, .data = sms}, SECTION_CART_RAM);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
372 //TODO: cart RAM
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
373 while (buf->cur_pos < buf->size)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
374 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
375 load_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
376 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
377 z80_invalidate_code_range(sms->z80, 0xC000, 0x10000);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
378 if (sms->bank_regs[0] & 8) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
379 //cart RAM is enabled, invalidate the region in case there is any code there
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
380 z80_invalidate_code_range(sms->z80, 0x8000, 0xC000);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
381 }
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
382 free(buf->handlers);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
383 buf->handlers = NULL;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
384 }
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
385
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
386 static void deserialize(system_header *sys, uint8_t *data, size_t size)
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
387 {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
388 sms_context *sms = (sms_context *)sys;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
389 deserialize_buffer buffer;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
390 init_deserialize(&buffer, data, size);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
391 sms_deserialize(&buffer, sms);
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
392 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
393
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
394 static void save_state(sms_context *sms, uint8_t slot)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
395 {
1478
da1dce39e846 Refactored save slot related logic to reduce duplication and allow reuse in new UI. Get state loading/saving mostly working in new UI
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
396 char *save_path = get_slot_name(&sms->header, slot, "state");
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
397 serialize_buffer state;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
398 init_serialize(&state);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
399 sms_serialize(sms, &state);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
400 save_to_file(&state, save_path);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
401 printf("Saved state to %s\n", save_path);
1478
da1dce39e846 Refactored save slot related logic to reduce duplication and allow reuse in new UI. Get state loading/saving mostly working in new UI
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
402 free(save_path);
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
403 free(state.data);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
404 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
405
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
406 static uint8_t load_state_path(sms_context *sms, char *path)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
407 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
408 deserialize_buffer state;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
409 uint8_t ret;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
410 if ((ret = load_from_file(&state, path))) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
411 sms_deserialize(&state, sms);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
412 free(state.data);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
413 printf("Loaded %s\n", path);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
414 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
415 return ret;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
416 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
417
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
418 static uint8_t load_state(system_header *system, uint8_t slot)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
419 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
420 sms_context *sms = (sms_context *)system;
1480
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
421 char *statepath = get_slot_name(system, slot, "state");
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
422 uint8_t ret;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
423 #ifndef NEW_CORE
1480
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
424 if (!sms->z80->native_pc) {
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
425 ret = get_modification_time(statepath) != 0;
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
426 if (ret) {
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
427 system->delayed_load_slot = slot + 1;
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
428 }
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
429 goto done;
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
430
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
431 }
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
432 #endif
1480
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
433 ret = load_state_path(sms, statepath);
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
434 done:
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
435 free(statepath);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
436 return ret;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
437 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
438
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
439 static void run_sms(system_header *system)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
440 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
441 sms_context *sms = (sms_context *)system;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
442 uint32_t target_cycle = sms->z80->Z80_CYCLE + 3420*16;
1184
b1147418254a Overscan is now configurable
Michael Pavone <pavone@retrodev.com>
parents: 1162
diff changeset
443 //TODO: PAL support
2200
f11f4399d64b Crop display in game gear mode
Michael Pavone <pavone@retrodev.com>
parents: 2197
diff changeset
444 if (sms->vdp->type == VDP_GAMEGEAR) {
f11f4399d64b Crop display in game gear mode
Michael Pavone <pavone@retrodev.com>
parents: 2197
diff changeset
445 render_set_video_standard(VID_GAMEGEAR);
f11f4399d64b Crop display in game gear mode
Michael Pavone <pavone@retrodev.com>
parents: 2197
diff changeset
446 } else {
f11f4399d64b Crop display in game gear mode
Michael Pavone <pavone@retrodev.com>
parents: 2197
diff changeset
447 render_set_video_standard(VID_NTSC);
f11f4399d64b Crop display in game gear mode
Michael Pavone <pavone@retrodev.com>
parents: 2197
diff changeset
448 }
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
449 while (!sms->should_return)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
450 {
1480
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
451 if (system->delayed_load_slot) {
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
452 load_state(system, system->delayed_load_slot - 1);
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
453 system->delayed_load_slot = 0;
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
454
1480
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
455 }
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
456 if (sms->vdp->frame != sms->last_frame) {
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2293
diff changeset
457 #ifndef IS_LIB
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
458 if (sms->psg->scope) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
459 scope_render(sms->psg->scope);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
460 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2293
diff changeset
461 #endif
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
462 uint32_t elapsed = sms->vdp->frame - sms->last_frame;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
463 sms->last_frame = sms->vdp->frame;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
464 if (system->enter_debugger_frames) {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
465 if (elapsed >= system->enter_debugger_frames) {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
466 system->enter_debugger_frames = 0;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
467 system->enter_debugger = 1;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
468 } else {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
469 system->enter_debugger_frames -= elapsed;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
470 }
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
471 }
2194
01ff005b08f6 Very rudimentary support for Game Gear VDP emulation
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
472
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
473 if(exit_after){
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
474 if (elapsed >= exit_after) {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
475 exit(0);
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
476 } else {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
477 exit_after -= elapsed;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
478 }
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
479 }
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
480 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
481 #ifndef NEW_CORE
2424
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2400
diff changeset
482 if ((system->enter_debugger || sms->z80->wp_hit) && sms->z80->pc) {
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2400
diff changeset
483 if (!sms->z80->wp_hit) {
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2400
diff changeset
484 system->enter_debugger = 0;
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2400
diff changeset
485 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2293
diff changeset
486 #ifndef IS_LIB
1129
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
487 zdebugger(sms->z80, sms->z80->pc);
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2293
diff changeset
488 #endif
1129
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
489 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
490 #endif
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
491 #ifdef NEW_CORE
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
492 if (sms->z80->nmi_cycle == CYCLE_NEVER) {
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
493 #else
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
494 if (sms->z80->nmi_start == CYCLE_NEVER) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
495 #endif
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
496 uint32_t nmi = vdp_next_nmi(sms->vdp);
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
497 if (nmi != CYCLE_NEVER) {
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
498 z80_assert_nmi(sms->z80, nmi);
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
499 }
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
500 }
2400
c97609fe8315 Implement watchpoints in Z80 debugger
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
501
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
502 #ifndef NEW_CORE
2424
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2400
diff changeset
503 if (system->enter_debugger || sms->z80->wp_hit) {
2400
c97609fe8315 Implement watchpoints in Z80 debugger
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
504 target_cycle = sms->z80->Z80_CYCLE + 1;
c97609fe8315 Implement watchpoints in Z80 debugger
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
505 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
506 #endif
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
507 z80_run(sms->z80, target_cycle);
1209
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
508 if (sms->z80->reset) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
509 z80_clear_reset(sms->z80, sms->z80->Z80_CYCLE + 128*15);
1209
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
510 }
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
511 target_cycle = sms->z80->Z80_CYCLE;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
512 vdp_run_context(sms->vdp, target_cycle);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
513 psg_run(sms->psg, target_cycle);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
514
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
515 if (system->save_state) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
516 while (!sms->z80->pc) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
517 //advance Z80 to an instruction boundary
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
518 z80_run(sms->z80, sms->z80->Z80_CYCLE + 1);
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
519 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
520 save_state(sms, system->save_state - 1);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
521 system->save_state = 0;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
522 }
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
523
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
524 target_cycle += 3420*16;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
525 if (target_cycle > 0x10000000) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
526 uint32_t adjust = sms->z80->Z80_CYCLE - 3420*262*2;
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
527 io_adjust_cycles(sms->io.ports, sms->z80->Z80_CYCLE, adjust);
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
528 io_adjust_cycles(sms->io.ports+1, sms->z80->Z80_CYCLE, adjust);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
529 z80_adjust_cycles(sms->z80, adjust);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
530 vdp_adjust_cycles(sms->vdp, adjust);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
531 sms->psg->cycles -= adjust;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
532 target_cycle -= adjust;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
533 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
534 }
1980
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
535 if (sms->header.force_release || render_should_release_on_exit()) {
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
536 bindings_release_capture();
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
537 vdp_release_framebuffer(sms->vdp);
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
538 render_pause_source(sms->psg->audio);
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
539 }
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
540 sms->should_return = 0;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
541 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
542
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
543 static void resume_sms(system_header *system)
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
544 {
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
545 sms_context *sms = (sms_context *)system;
1980
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
546 if (sms->header.force_release || render_should_release_on_exit()) {
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
547 sms->header.force_release = 0;
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
548 bindings_reacquire_capture();
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
549 vdp_reacquire_framebuffer(sms->vdp);
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
550 render_resume_source(sms->psg->audio);
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
551 }
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
552 run_sms(system);
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
553 }
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
554
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
555 static void start_sms(system_header *system, char *statefile)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
556 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
557 sms_context *sms = (sms_context *)system;
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
558
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
559 z80_assert_reset(sms->z80, 0);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
560 z80_clear_reset(sms->z80, 128*15);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
561
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
562 if (statefile) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
563 load_state_path(sms, statefile);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
564 }
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
565
1129
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
566 if (system->enter_debugger) {
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
567 system->enter_debugger = 0;
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2293
diff changeset
568 #ifndef IS_LIB
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
569 zinsert_breakpoint(sms->z80, sms->z80->pc, (uint8_t *)zdebugger);
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2293
diff changeset
570 #endif
1129
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
571 }
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
572
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
573 run_sms(system);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
574 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
575
1209
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
576 static void soft_reset(system_header *system)
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
577 {
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
578 sms_context *sms = (sms_context *)system;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
579 z80_assert_reset(sms->z80, sms->z80->Z80_CYCLE);
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
580 #ifndef NEW_CORE
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
581 sms->z80->target_cycle = sms->z80->sync_cycle = sms->z80->Z80_CYCLE;
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
582 #endif
1209
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
583 }
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
584
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
585 static void free_sms(system_header *system)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
586 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
587 sms_context *sms = (sms_context *)system;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
588 vdp_free(sms->vdp);
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
589 z80_options_free(sms->z80->Z80_OPTS);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
590 free(sms->z80);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
591 psg_free(sms->psg);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
592 free(sms);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
593 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
594
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
595 static uint16_t get_open_bus_value(system_header *system)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
596 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
597 return 0xFFFF;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
598 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
599
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
600 static void request_exit(system_header *system)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
601 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
602 sms_context *sms = (sms_context *)system;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
603 sms->should_return = 1;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
604 #ifndef NEW_CORE
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
605 sms->z80->target_cycle = sms->z80->sync_cycle = sms->z80->Z80_CYCLE;
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
606 #endif
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
607 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
608
1120
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
609 static void inc_debug_mode(system_header *system)
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
610 {
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
611 sms_context *sms = (sms_context *)system;
1643
6909c5d0bbb5 Removed old VDP debug functionality
Michael Pavone <pavone@retrodev.com>
parents: 1640
diff changeset
612 vdp_inc_debug_mode(sms->vdp);
1120
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
613 }
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
614
1384
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
615 static void load_save(system_header *system)
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
616 {
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
617 //TODO: Implement me
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
618 }
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
619
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
620 static void persist_save(system_header *system)
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
621 {
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
622 //TODO: Implement me
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
623 }
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
624
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
625 static void gamepad_down(system_header *system, uint8_t gamepad_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
626 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
627 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
628 if (gamepad_num == GAMEPAD_MAIN_UNIT) {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
629 if (button == MAIN_UNIT_PAUSE) {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
630 vdp_pbc_pause(sms->vdp);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
631 }
2195
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
632 } else if (sms->vdp->type == VDP_GAMEGEAR && gamepad_num == 1 && button == BUTTON_START) {
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
633 sms->start_button_region &= 0x7F;
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
634 } else {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
635 io_gamepad_down(&sms->io, gamepad_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
636 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
637 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
638
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
639 static void gamepad_up(system_header *system, uint8_t gamepad_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
640 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
641 sms_context *sms = (sms_context *)system;
2195
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
642 if (sms->vdp->type == VDP_GAMEGEAR && gamepad_num == 1 && button == BUTTON_START) {
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
643 sms->start_button_region |= 0x80;
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
644 } else {
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
645 io_gamepad_up(&sms->io, gamepad_num, button);
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
646 }
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
647 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
648
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
649 static void mouse_down(system_header *system, uint8_t mouse_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
650 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
651 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
652 io_mouse_down(&sms->io, mouse_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
653 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
654
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
655 static void mouse_up(system_header *system, uint8_t mouse_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
656 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
657 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
658 io_mouse_up(&sms->io, mouse_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
659 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
660
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
661 static void mouse_motion_absolute(system_header *system, uint8_t mouse_num, uint16_t x, uint16_t y)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
662 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
663 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
664 io_mouse_motion_absolute(&sms->io, mouse_num, x, y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
665 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
666
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
667 static void mouse_motion_relative(system_header *system, uint8_t mouse_num, int32_t x, int32_t y)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
668 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
669 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
670 io_mouse_motion_relative(&sms->io, mouse_num, x, y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
671 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
672
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
673 static void keyboard_down(system_header *system, uint8_t scancode)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
674 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
675 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
676 io_keyboard_down(&sms->io, scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
677 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
678
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
679 static void keyboard_up(system_header *system, uint8_t scancode)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
680 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
681 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
682 io_keyboard_up(&sms->io, scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
683 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
684
1796
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1759
diff changeset
685 static void set_gain_config(sms_context *sms)
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1759
diff changeset
686 {
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1759
diff changeset
687 char *config_gain;
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1759
diff changeset
688 config_gain = tern_find_path(config, "audio\0psg_gain\0", TVAL_PTR).ptrval;
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1759
diff changeset
689 render_audio_source_gaindb(sms->psg->audio, config_gain ? atof(config_gain) : 0.0f);
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1759
diff changeset
690 }
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1759
diff changeset
691
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
692 static void config_updated(system_header *system)
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
693 {
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
694 sms_context *sms = (sms_context *)system;
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
695 setup_io_devices(config, &system->info, &sms->io);
2384
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2325
diff changeset
696 //sample rate may have changed
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2325
diff changeset
697 psg_adjust_master_clock(sms->psg, sms->master_clock);
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
698 }
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
699
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
700 static void toggle_debug_view(system_header *system, uint8_t debug_view)
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
701 {
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2293
diff changeset
702 #ifndef IS_LIB
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
703 sms_context *sms = (sms_context *)system;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
704 if (debug_view < DEBUG_OSCILLOSCOPE) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
705 vdp_toggle_debug_view(sms->vdp, debug_view);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
706 } else if (debug_view == DEBUG_OSCILLOSCOPE) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
707 if (sms->psg->scope) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
708 oscilloscope *scope = sms->psg->scope;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
709 sms->psg->scope = NULL;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
710 scope_close(scope);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
711 } else {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
712 oscilloscope *scope = create_oscilloscope();
2256
cbe1ba70c247 Fix build after scope clock fix
Michael Pavone <pavone@retrodev.com>
parents: 2243
diff changeset
713 psg_enable_scope(sms->psg, scope, sms->normal_clock);
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
714 }
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
715 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2293
diff changeset
716 #endif
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
717 }
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
718
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
719 sms_context *alloc_configure_sms(system_media *media, uint32_t opts, uint8_t force_region)
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
720 {
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
721 sms_context *sms = calloc(1, sizeof(sms_context));
2320
8016dbb0fcde Initial work on ROM DB support for SMS/GG games
Michael Pavone <pavone@retrodev.com>
parents: 2302
diff changeset
722 tern_node *rom_db = get_rom_db();
8016dbb0fcde Initial work on ROM DB support for SMS/GG games
Michael Pavone <pavone@retrodev.com>
parents: 2302
diff changeset
723 const memmap_chunk base_map[] = {
8016dbb0fcde Initial work on ROM DB support for SMS/GG games
Michael Pavone <pavone@retrodev.com>
parents: 2302
diff changeset
724 {0xC000, 0x10000, sizeof(sms->ram)-1, .flags = MMAP_READ|MMAP_WRITE|MMAP_CODE, .buffer = sms->ram}
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
725 };
2320
8016dbb0fcde Initial work on ROM DB support for SMS/GG games
Michael Pavone <pavone@retrodev.com>
parents: 2302
diff changeset
726 sms->header.info = configure_rom_sms(rom_db, media->buffer, media->size, base_map, sizeof(base_map)/sizeof(base_map[0]));
8016dbb0fcde Initial work on ROM DB support for SMS/GG games
Michael Pavone <pavone@retrodev.com>
parents: 2302
diff changeset
727 uint32_t rom_size = sms->header.info.rom_size;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
728 z80_options *zopts = malloc(sizeof(z80_options));
2257
1e626d0ecf9c WIP SG-1000/TMS9918A mode support
Michael Pavone <pavone@retrodev.com>
parents: 2256
diff changeset
729 tern_node *model_def;
2202
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
730 uint8_t is_gamegear = !strcasecmp(media->extension, "gg");
2257
1e626d0ecf9c WIP SG-1000/TMS9918A mode support
Michael Pavone <pavone@retrodev.com>
parents: 2256
diff changeset
731 if (is_gamegear) {
1e626d0ecf9c WIP SG-1000/TMS9918A mode support
Michael Pavone <pavone@retrodev.com>
parents: 2256
diff changeset
732 model_def = tern_find_node(get_systems_config(), "gg");
1e626d0ecf9c WIP SG-1000/TMS9918A mode support
Michael Pavone <pavone@retrodev.com>
parents: 2256
diff changeset
733 } else if (!strcasecmp(media->extension, "sg")) {
1e626d0ecf9c WIP SG-1000/TMS9918A mode support
Michael Pavone <pavone@retrodev.com>
parents: 2256
diff changeset
734 model_def = tern_find_node(get_systems_config(), "sg1000");
1e626d0ecf9c WIP SG-1000/TMS9918A mode support
Michael Pavone <pavone@retrodev.com>
parents: 2256
diff changeset
735 } else {
1e626d0ecf9c WIP SG-1000/TMS9918A mode support
Michael Pavone <pavone@retrodev.com>
parents: 2256
diff changeset
736 model_def = get_model(config, SYSTEM_SMS);
1e626d0ecf9c WIP SG-1000/TMS9918A mode support
Michael Pavone <pavone@retrodev.com>
parents: 2256
diff changeset
737 }
2202
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
738 char *vdp_str = tern_find_ptr(model_def, "vdp");
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
739 uint8_t vdp_type = is_gamegear ? VDP_GENESIS : VDP_GAMEGEAR;
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
740 if (vdp_str) {
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
741 if (!strcmp(vdp_str, "sms1")) {
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
742 vdp_type = VDP_SMS;
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
743 } else if (!strcmp(vdp_str, "sms2")) {
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
744 vdp_type = VDP_SMS2;
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
745 } else if (!strcmp(vdp_str, "tms9918a")) {
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
746 vdp_type = VDP_TMS9918A;
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
747 } else if (!strcmp(vdp_str, "gamegear")) {
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
748 vdp_type = VDP_GAMEGEAR;
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
749 } else if (!strcmp(vdp_str, "genesis")) {
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
750 vdp_type = VDP_GENESIS;
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
751 } else {
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
752 warning("Unrecognized VDP type %s\n", vdp_str);
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
753 }
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
754 }
2321
2eda5f81f91e More fully baked ROM db support for SMS
Michael Pavone <pavone@retrodev.com>
parents: 2320
diff changeset
755 for (uint32_t i = 0; i < sms->header.info.map_chunks; i++)
2eda5f81f91e More fully baked ROM db support for SMS
Michael Pavone <pavone@retrodev.com>
parents: 2320
diff changeset
756 {
2eda5f81f91e More fully baked ROM db support for SMS
Michael Pavone <pavone@retrodev.com>
parents: 2320
diff changeset
757 memmap_chunk *chunk = sms->header.info.map + i;
2eda5f81f91e More fully baked ROM db support for SMS
Michael Pavone <pavone@retrodev.com>
parents: 2320
diff changeset
758 if ((chunk->flags == MMAP_READ) && !chunk->buffer && chunk->start > 0xC000) {
2eda5f81f91e More fully baked ROM db support for SMS
Michael Pavone <pavone@retrodev.com>
parents: 2320
diff changeset
759 chunk->buffer = sms->ram + ((chunk->start - 0xC000) & 0x1FFF);
2eda5f81f91e More fully baked ROM db support for SMS
Michael Pavone <pavone@retrodev.com>
parents: 2320
diff changeset
760 }
2eda5f81f91e More fully baked ROM db support for SMS
Michael Pavone <pavone@retrodev.com>
parents: 2320
diff changeset
761 }
2202
ee6d30c56eeb Add separate model/IO selection settings for SMS/GG
Michael Pavone <pavone@retrodev.com>
parents: 2200
diff changeset
762 if (is_gamegear) {
2195
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
763 init_z80_opts(zopts, sms->header.info.map, sms->header.info.map_chunks, io_gg, 6, 15, 0xFF);
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
764 sms->start_button_region = 0xC0;
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
765 } else {
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
766 init_z80_opts(zopts, sms->header.info.map, sms->header.info.map_chunks, io_map, 4, 15, 0xFF);
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
767 }
1130
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1129
diff changeset
768 sms->z80 = init_z80_context(zopts);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
769 sms->z80->system = sms;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
770 sms->z80->Z80_OPTS->gen.debug_cmd_handler = debug_commands;
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
771
1201
aee2177a1630 Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
772 sms->rom = media->buffer;
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
773 sms->rom_size = rom_size;
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
774 if (sms->header.info.map_chunks > 2) {
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
775 sms->z80->mem_pointers[0] = sms->rom;
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
776 sms->z80->mem_pointers[1] = sms->rom + 0x4000;
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
777 sms->z80->mem_pointers[2] = sms->rom + 0x8000;
1162
c4ea535cf57e Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents: 1154
diff changeset
778 sms->bank_regs[1] = 0;
c4ea535cf57e Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents: 1154
diff changeset
779 sms->bank_regs[2] = 0x4000 >> 14;
c4ea535cf57e Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents: 1154
diff changeset
780 sms->bank_regs[3] = 0x8000 >> 14;
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
781 }
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
782
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
783 //TODO: Detect region and pick master clock based off of that
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
784 sms->normal_clock = sms->master_clock = 53693175;
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
785
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
786 sms->psg = malloc(sizeof(psg_context));
1555
6ce36c3f250b More audio refactoring in preparation for allowing proper sync to video with dynamic audio rate control
Michael Pavone <pavone@retrodev.com>
parents: 1551
diff changeset
787 psg_init(sms->psg, sms->master_clock, 15*16);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
788
1796
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1759
diff changeset
789 set_gain_config(sms);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
790
2195
40290a923886 Implement Game Gear start button and region register
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
791 sms->vdp = init_vdp_context(0, 0, vdp_type);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
792 sms->vdp->system = &sms->header;
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
793
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
794 sms->header.info.save_type = SAVE_NONE;
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
795 sms->header.info.name = strdup(media->name);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
796
2293
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
797 tern_node *io_config_root = config;
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
798 tern_node *sms_root = tern_find_node(config, "sms");
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
799 if (sms_root) {
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
800 tern_node *io = tern_find_node(sms_root, "io");
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
801 if (io) {
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
802 io_config_root = sms_root;
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
803 }
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
804 }
3e0d463eb9b3 Actually use SMS specific controller config
Michael Pavone <pavone@retrodev.com>
parents: 2257
diff changeset
805 setup_io_devices(io_config_root, &sms->header.info, &sms->io);
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
806 sms->header.has_keyboard = io_has_keyboard(&sms->io);
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
807
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
808 sms->header.set_speed_percent = set_speed_percent;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
809 sms->header.start_context = start_sms;
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
810 sms->header.resume_context = resume_sms;
1384
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
811 sms->header.load_save = load_save;
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
812 sms->header.persist_save = persist_save;
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
813 sms->header.load_state = load_state;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
814 sms->header.free_context = free_sms;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
815 sms->header.get_open_bus_value = get_open_bus_value;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
816 sms->header.request_exit = request_exit;
1209
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
817 sms->header.soft_reset = soft_reset;
1120
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
818 sms->header.inc_debug_mode = inc_debug_mode;
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
819 sms->header.gamepad_down = gamepad_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
820 sms->header.gamepad_up = gamepad_up;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
821 sms->header.mouse_down = mouse_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
822 sms->header.mouse_up = mouse_up;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
823 sms->header.mouse_motion_absolute = mouse_motion_absolute;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
824 sms->header.mouse_motion_relative = mouse_motion_relative;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
825 sms->header.keyboard_down = keyboard_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
826 sms->header.keyboard_up = keyboard_up;
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
827 sms->header.config_updated = config_updated;
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
828 sms->header.serialize = serialize;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
829 sms->header.deserialize = deserialize;
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2202
diff changeset
830 sms->header.toggle_debug_view = toggle_debug_view;
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
831 sms->header.type = SYSTEM_SMS;
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
832
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
833 return sms;
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
834 }