Mercurial > repos > blastem

annotate sega_mapper.c @ 1866:84f16a804ce5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Rework sprite rendering phase 3 to better match behavior documented by Kabuto/Titan and fix edge case in sprite overflow flag that was breaking the RPS minigame in Alex Kidd
author Michael Pavone <pavone@retrodev.com>
date Thu, 20 Jun 2019 22:31:31 -0700
parents d60f2d7c02a5
children 374a5ae694e8 3748a2a8a4b7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1415
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1 #include "genesis.h"
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3 uint16_t read_sram_w(uint32_t address, m68k_context * context)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
4 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
5 genesis_context * gen = context->system;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
6 address &= gen->save_ram_mask;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
7 switch(gen->save_type)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
8 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
9 case RAM_FLAG_BOTH:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
10 return gen->save_storage[address] << 8 | gen->save_storage[address+1];
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
11 case RAM_FLAG_EVEN:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
12 return gen->save_storage[address >> 1] << 8 | 0xFF;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
13 case RAM_FLAG_ODD:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
14 return gen->save_storage[address >> 1] | 0xFF00;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
15 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
16 return 0xFFFF;//We should never get here
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
17 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
18
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
19 uint8_t read_sram_b(uint32_t address, m68k_context * context)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
20 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
21 genesis_context * gen = context->system;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
22 address &= gen->save_ram_mask;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
23 switch(gen->save_type)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
24 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
25 case RAM_FLAG_BOTH:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
26 return gen->save_storage[address];
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
27 case RAM_FLAG_EVEN:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
28 if (address & 1) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
29 return 0xFF;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
30 } else {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
31 return gen->save_storage[address >> 1];
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
32 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
33 case RAM_FLAG_ODD:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
34 if (address & 1) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
35 return gen->save_storage[address >> 1];
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
36 } else {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
37 return 0xFF;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
38 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
39 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
40 return 0xFF;//We should never get here
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
41 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
42
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
43 m68k_context * write_sram_area_w(uint32_t address, m68k_context * context, uint16_t value)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
44 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
45 genesis_context * gen = context->system;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
46 if ((gen->bank_regs[0] & 0x3) == 1) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
47 address &= gen->save_ram_mask;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
48 switch(gen->save_type)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
49 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
50 case RAM_FLAG_BOTH:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
51 gen->save_storage[address] = value >> 8;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
52 gen->save_storage[address+1] = value;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
53 break;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
54 case RAM_FLAG_EVEN:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
55 gen->save_storage[address >> 1] = value >> 8;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
56 break;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
57 case RAM_FLAG_ODD:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
58 gen->save_storage[address >> 1] = value;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
59 break;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
60 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
61 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
62 return context;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
63 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
64
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
65 m68k_context * write_sram_area_b(uint32_t address, m68k_context * context, uint8_t value)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
66 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
67 genesis_context * gen = context->system;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
68 if ((gen->bank_regs[0] & 0x3) == 1) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
69 address &= gen->save_ram_mask;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
70 switch(gen->save_type)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
71 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
72 case RAM_FLAG_BOTH:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
73 gen->save_storage[address] = value;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
74 break;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
75 case RAM_FLAG_EVEN:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
76 if (!(address & 1)) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
77 gen->save_storage[address >> 1] = value;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
78 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
79 break;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
80 case RAM_FLAG_ODD:
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
81 if (address & 1) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
82 gen->save_storage[address >> 1] = value;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
83 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
84 break;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
85 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
86 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
87 return context;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
88 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
89
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
90 m68k_context * write_bank_reg_w(uint32_t address, m68k_context * context, uint16_t value)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
91 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
92 genesis_context * gen = context->system;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
93 address &= 0xE;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
94 address >>= 1;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
95 gen->bank_regs[address] = value;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
96 if (!address) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
97 if (value & 1) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
98 //Used for games that only use the mapper for SRAM
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
99 if (context->mem_pointers[gen->mapper_start_index]) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
100 gen->mapper_temp = context->mem_pointers[gen->mapper_start_index];
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
101 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
102 context->mem_pointers[gen->mapper_start_index] = NULL;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
103 //For games that need more than 4MB
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
104 for (int i = 4; i < 8; i++)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
105 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
106 context->mem_pointers[gen->mapper_start_index + i] = NULL;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
107 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
108 } else {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
109 //Used for games that only use the mapper for SRAM
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
110 if (!context->mem_pointers[gen->mapper_start_index]) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
111 context->mem_pointers[gen->mapper_start_index] = gen->mapper_temp;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
112 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
113 //For games that need more than 4MB
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
114 for (int i = 4; i < 8; i++)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
115 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
116 context->mem_pointers[gen->mapper_start_index + i] = gen->cart + 0x40000*gen->bank_regs[i];
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
117 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
118 }
1863
d60f2d7c02a5 Differentiate between the full Sega mapper and the SRAM only one. Fixes crash on save state load for Phantasy Star IV and other games that use the same mapper
Michael Pavone <pavone@retrodev.com>
parents: 1444
diff changeset
119 } else if (gen->mapper_type == MAPPER_SEGA) {
1415
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
120 void *new_ptr = gen->cart + 0x40000*value;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
121 if (context->mem_pointers[gen->mapper_start_index + address] != new_ptr) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
122 m68k_invalidate_code_range(gen->m68k, address * 0x80000, (address + 1) * 0x80000);
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
123 context->mem_pointers[gen->mapper_start_index + address] = new_ptr;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
124 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
125 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
126 return context;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
127 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
128
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
129 m68k_context * write_bank_reg_b(uint32_t address, m68k_context * context, uint8_t value)
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
130 {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
131 if (address & 1) {
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
132 write_bank_reg_w(address, context, value);
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
133 }
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
134 return context;
f7d653bb8899 Move Sega mapper implementation out of romdb.c
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
135 }
1444
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
136
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
137 void sega_mapper_serialize(genesis_context *gen, serialize_buffer *buf)
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
138 {
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
139 save_buffer8(buf, gen->bank_regs, sizeof(gen->bank_regs));
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
140 }
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
141
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
142 void sega_mapper_deserialize(deserialize_buffer *buf, genesis_context *gen)
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
143 {
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
144 for (int i = 0; i < sizeof(gen->bank_regs); i++)
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
145 {
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
146 write_bank_reg_w(i * 2, gen->m68k, load_int8(buf));
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
147 }
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1415
diff changeset
148 }