Mercurial > repos > blastem
annotate xband.c @ 1373:7cfc9d532e34
Fixed regression from VDP sync changes. Direct color DMA demos are now achieving stable sync again
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Tue, 23 May 2017 23:17:24 -0700 |
parents | 6370b80491c7 |
children | 780fbe0b97be |
rev | line source |
---|---|
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1 #include <stdlib.h> |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
2 #include <stddef.h> |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
3 #include <string.h> |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
4 #include "romdb.h" |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
5 #include "genesis.h" |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
6 #include "tern.h" |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
7 #include "xband.h" |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
8 #include "util.h" |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
9 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
10 #define BIT_ROM_HI 4 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
11 |
1230
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
12 enum { |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
13 PATCH0_LOW, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
14 PATCH0_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
15 PATCH0_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
16 PATCH1_LOW=4, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
17 PATCH1_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
18 PATCH1_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
19 PATCH2_LOW=8, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
20 PATCH2_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
21 PATCH2_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
22 PATCH3_LOW=12, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
23 PATCH3_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
24 PATCH3_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
25 PATCH4_LOW=16, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
26 PATCH4_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
27 PATCH4_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
28 PATCH5_LOW=20, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
29 PATCH5_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
30 PATCH5_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
31 PATCH6_LOW=24, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
32 PATCH6_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
33 PATCH6_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
34 PATCH7_LOW=28, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
35 PATCH7_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
36 PATCH7_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
37 PATCH8_LOW=32, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
38 PATCH8_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
39 PATCH8_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
40 PATCH9_LOW=36, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
41 PATCH9_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
42 PATCH9_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
43 PATCH10_LOW=40, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
44 PATCH10_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
45 PATCH10_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
46 RANGE0_START_LOW=44, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
47 RANGE0_START_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
48 RANGE0_START_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
49 RANGE1_START=48, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
50 RANGE1_START_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
51 RANGE1_START_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
52 MAGIC_LOW=56, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
53 MAGIC_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
54 MAGIC_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
55 RANGE0_END_LOW=64, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
56 RANGE0_END_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
57 RANGE0_END_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
58 RANGE1_END_LOW=68, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
59 RANGE1_END_MID, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
60 RANGE1_END_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
61 RANGE0_DEST_LOW=80, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
62 RANGE0_DEST_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
63 RANGE0_MASK, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
64 RANGE1_DEST_LOW=84, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
65 RANGE1_DEST_HI, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
66 RANGE1_MASK, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
67 |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
68 MORE_MYSTERY=219, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
69 UNKNOWN_REG=221, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
70 UNKNOWN_REG2, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
71 UNKNOWN_REG3, |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
72 |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
73 }; |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
74 |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
75 //#define DO_DEBUG_PRINT |
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
76 #ifdef DO_DEBUG_PRINT |
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
77 #define dprintf printf |
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
78 #define dputs puts |
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
79 #else |
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
80 #define dprintf |
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
81 #define dputs |
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
82 #endif |
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
83 |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
84 uint8_t xband_detect(uint8_t *rom, uint32_t rom_size) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
85 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
86 //Internal ROM is 512KB, accept larger ones for overdumps and custom firmware |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
87 if (rom_size < (512*1024)) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
88 return 0; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
89 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
90 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
91 //ROM has no standard header, but does have a jump at $100 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
92 if (rom[0x100] != 0x4E || rom[0x101] != 0xF9) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
93 return 0; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
94 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
95 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
96 //product ID is all NULL |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
97 for (int i = GAME_ID_OFF; i <= (GAME_ID_OFF + GAME_ID_LEN); i++) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
98 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
99 if (rom[i]) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
100 return 0; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
101 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
102 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
103 return 1; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
104 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
105 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
106 static xband *get_xband(genesis_context *gen) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
107 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
108 if (!gen->extra) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
109 gen->extra = gen->m68k->options->gen.memmap[0].buffer; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
110 gen->m68k->mem_pointers[2] = (uint16_t *)gen->save_storage; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
111 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
112 return gen->extra; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
113 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
114 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
115 static void update_control(genesis_context *gen, uint8_t value) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
116 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
117 xband *x = gen->extra; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
118 if ((x->control ^ value) & BIT_ROM_HI) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
119 if (value & BIT_ROM_HI) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
120 gen->m68k->mem_pointers[0] = (uint16_t *)gen->save_storage; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
121 gen->m68k->mem_pointers[1] = NULL; |
1229 | 122 gen->m68k->mem_pointers[2] = gen->cart; |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
123 gen->m68k->mem_pointers[3] = x->cart_space - 0x100000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
124 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
125 gen->m68k->mem_pointers[0] = x->cart_space; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
126 gen->m68k->mem_pointers[1] = x->cart_space; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
127 gen->m68k->mem_pointers[2] = (uint16_t *)gen->save_storage; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
128 gen->m68k->mem_pointers[3] = NULL; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
129 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
130 m68k_invalidate_code_range(gen->m68k, 0, 0x3BC000); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
131 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
132 x->control = value; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
133 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
134 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
135 static void *xband_write_b(uint32_t address, void *context, uint8_t value) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
136 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
137 m68k_context *m68k = context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
138 genesis_context *gen = m68k->system; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
139 xband *x = get_xband(gen); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
140 if (address == 0x181) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
141 x->kill = value; |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
142 dprintf("Write to \"soft\" kill register %X\n", value); |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
143 } else if (address == 0x183) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
144 update_control(gen, value); |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
145 dprintf("Write to \"soft\" control register %X\n", value); |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
146 } else if ((x->control & BIT_ROM_HI && address < 0x200000) || (address >= 0x200000 && !(x->control & BIT_ROM_HI))) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
147 gen->save_storage[(address & 0xFFFF) ^ 1] = value; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
148 m68k_handle_code_write(address, m68k); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
149 //TODO: handle code at mirror addresses |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
150 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
151 printf("Unhandled write to cartridge area %X: %X\n", address, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
152 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
153 return context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
154 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
155 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
156 static void *xband_write_hi_b(uint32_t address, void *context, uint8_t value) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
157 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
158 return xband_write_b(address | 0x200000, context, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
159 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
160 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
161 static void *xband_write_w(uint32_t address, void *context, uint16_t value) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
162 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
163 m68k_context *m68k = context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
164 genesis_context *gen = m68k->system; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
165 xband *x = get_xband(gen); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
166 if (address == 0x180 || address == 0x182) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
167 return xband_write_b(address | 1, context, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
168 } else if ((x->control & BIT_ROM_HI && address < 0x200000) || (address >= 0x200000 && !(x->control & BIT_ROM_HI))) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
169 gen->save_storage[address & 0xFFFE] = value; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
170 gen->save_storage[(address & 0xFFFE) | 1] = value >> 8; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
171 m68k_handle_code_write(address, m68k); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
172 //TODO: handle code at mirror addresses |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
173 return context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
174 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
175 printf("Unhandled write to %X: %X\n", address, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
176 return context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
177 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
178 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
179 static void *xband_write_hi_w(uint32_t address, void *context, uint16_t value) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
180 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
181 return xband_write_w(address | 0x200000, context, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
182 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
183 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
184 static uint16_t xband_read_w(uint32_t address, void *context) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
185 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
186 m68k_context *m68k = context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
187 genesis_context *gen = m68k->system; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
188 xband *x = get_xband(gen); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
189 //TODO: actually do something intelligent here |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
190 return x->cart_space[address >> 1]; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
191 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
192 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
193 static uint16_t xband_read_hi_w(uint32_t address, void *context) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
194 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
195 return xband_read_w(address | 0x200000, context); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
196 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
197 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
198 static uint8_t xband_read_b(uint32_t address, void *context) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
199 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
200 uint16_t val = xband_read_w(address, context); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
201 return address & 1 ? val : val >> 8; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
202 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
203 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
204 static uint8_t xband_read_hi_b(uint32_t address, void *context) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
205 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
206 return xband_read_b(address | 0x200000, context); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
207 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
208 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
209 static void *xband_reg_write_b(uint32_t address, void *context, uint8_t value) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
210 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
211 m68k_context *m68k = context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
212 genesis_context *gen = m68k->system; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
213 if (!(address & 1)) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
214 printf("Ignoring write to even address %X: %X\n", address, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
215 return context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
216 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
217 xband *x = get_xband(gen); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
218 if (address < 0x3BFE00) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
219 uint32_t offset = (address - 0x3BC001) / 2; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
220 if (offset < XBAND_REGS) { |
1230
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
221 switch (offset) |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
222 { |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
223 case MORE_MYSTERY: |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
224 case UNKNOWN_REG: |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
225 dprintf("Write to mysterious reg: %X: %X\n", address, value); |
1230
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
226 value = value & 0x7F; |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
227 break; |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
228 case UNKNOWN_REG3: |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
229 dprintf("Write to mysterious reg: %X: %X\n", address, value); |
1230
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
230 value = value & 0xFE; |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
231 break; |
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
232 } |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
233 x->regs[offset] = value; |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
234 dprintf("Write to register %X(%d): %X\n", address, offset, value); |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
235 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
236 printf("Unhandled register write %X: %X\n", address, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
237 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
238 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
239 if (address == 0x3BFE01) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
240 x->kill = value; |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
241 dprintf("Write to kill register %X\n", value); |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
242 } else if (address == 0x3BFE03) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
243 update_control(gen, value); |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
244 dprintf("Write to control register %X\n", value); |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
245 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
246 printf("Unhandled register write %X: %X\n", address, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
247 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
248 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
249 return context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
250 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
251 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
252 static void *xband_reg_write_w(uint32_t address, void *context, uint16_t value) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
253 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
254 return xband_reg_write_b(address | 1, context, value); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
255 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
256 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
257 static uint8_t xband_reg_read_b(uint32_t address, void *context) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
258 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
259 m68k_context *m68k = context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
260 genesis_context *gen = m68k->system; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
261 if (!(address & 1)) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
262 printf("Read from even address %X\n", address); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
263 return gen->header.get_open_bus_value(&gen->header) >> 8; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
264 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
265 xband *x = get_xband(gen); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
266 if (address < 0x3BFE00) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
267 uint32_t offset = (address - 0x3BC001) / 2; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
268 if (offset < XBAND_REGS) { |
1231
d9d775d61fcf
Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents:
1230
diff
changeset
|
269 dprintf("Regsister read: %X\n", address); |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
270 return x->regs[offset]; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
271 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
272 printf("Unhandled register read from address %X\n", address); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
273 return 0x5D; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
274 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
275 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
276 if (address == 0x3BFE01) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
277 return x->kill; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
278 } else if (address == 0x3BFE03) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
279 return x->control; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
280 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
281 printf("Unhandled register read from address %X\n", address); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
282 return 0x5D; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
283 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
284 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
285 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
286 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
287 static uint16_t xband_reg_read_w(uint32_t address, void *context) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
288 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
289 m68k_context *m68k = context; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
290 genesis_context *gen = m68k->system; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
291 uint16_t value = xband_reg_read_b(address | 1, context); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
292 value |= gen->header.get_open_bus_value(&gen->header) & 0xFF00; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
293 return value; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
294 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
295 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
296 rom_info xband_configure_rom(tern_node *rom_db, void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, memmap_chunk const *base_map, uint32_t base_chunks) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
297 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
298 rom_info info; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
299 if (lock_on && lock_on_size) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
300 rom_info lock_on_info = configure_rom(rom_db, lock_on, lock_on_size, NULL, 0, base_map, base_chunks); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
301 info.name = alloc_concat("XBAND - ", lock_on_info.name); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
302 info.regions = lock_on_info.regions; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
303 //TODO: Move this to a shared function in romdbc.h |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
304 free(lock_on_info.name); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
305 if (lock_on_info.save_type != SAVE_NONE) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
306 free(lock_on_info.save_buffer); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
307 if (lock_on_info.save_type == SAVE_I2C) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
308 free(lock_on_info.eeprom_map); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
309 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
310 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
311 free(lock_on_info.map); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
312 free(lock_on_info.port1_override); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
313 free(lock_on_info.port2_override); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
314 free(lock_on_info.ext_override); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
315 free(lock_on_info.mouse_mode); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
316 } else { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
317 info.name = strdup("XBAND"); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
318 info.regions = REGION_J|REGION_U|REGION_E; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
319 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
320 info.save_size = 64*1024; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
321 info.save_buffer = malloc(info.save_size); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
322 info.save_mask = info.save_size-1; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
323 info.save_type = RAM_FLAG_BOTH; |
1255
6370b80491c7
Automatically connect XBAND keyboard if XBAND ROM is detected
Michael Pavone <pavone@retrodev.com>
parents:
1231
diff
changeset
|
324 info.port1_override = info.ext_override = info.mouse_mode = NULL; |
6370b80491c7
Automatically connect XBAND keyboard if XBAND ROM is detected
Michael Pavone <pavone@retrodev.com>
parents:
1231
diff
changeset
|
325 info.port2_override = strdup("xband keyboard"); |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
326 info.eeprom_map = NULL; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
327 info.num_eeprom = 0; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
328 xband *x = calloc(sizeof(xband), 1); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
329 rom_size = nearest_pow2(rom_size); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
330 for (int i = 0; (i + rom_size) <= sizeof(x->cart_space) / 2; i += rom_size) |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
331 { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
332 memcpy(x->cart_space + i/2, rom, rom_size); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
333 } |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
334 if (lock_on && lock_on_size >= 0x200) { |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
335 memcpy(x->cart_space + 0x80, ((uint16_t *)lock_on) + 0x80, 0x100); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
336 } |
1229 | 337 //observed power on values |
1230
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
338 memset(x->regs, 0, sizeof(x->regs)); |
1229 | 339 x->regs[0x7C] = 0; |
340 x->regs[0x7D] = 0x80; | |
341 x->regs[0xB4] = 0x7F; | |
1230
0ed27bb6a658
Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents:
1229
diff
changeset
|
342 x->regs[UNKNOWN_REG2] = 8; |
1229 | 343 |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
344 byteswap_rom(0x400000, x->cart_space); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
345 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
346 info.map_chunks = base_chunks + 5; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
347 info.map = calloc(sizeof(memmap_chunk), info.map_chunks); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
348 info.map[0].mask = 0xFFFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
349 info.map[0].aux_mask = 0xFFFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
350 info.map[0].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL|MMAP_AUX_BUFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
351 info.map[0].start = 0; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
352 info.map[0].end = 0x10000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
353 info.map[0].ptr_index = 0; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
354 info.map[0].buffer = x->cart_space; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
355 info.map[0].write_16 = xband_write_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
356 info.map[0].write_8 = xband_write_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
357 info.map[0].read_16 = xband_read_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
358 info.map[0].read_8 = xband_read_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
359 info.map[1].mask = 0xFFFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
360 info.map[1].aux_mask = 0xFFFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
361 info.map[1].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL|MMAP_AUX_BUFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
362 info.map[1].start = 0x10000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
363 info.map[1].end = 0x200000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
364 info.map[1].ptr_index = 1; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
365 info.map[1].buffer = x->cart_space; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
366 info.map[1].write_16 = xband_write_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
367 info.map[1].write_8 = xband_write_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
368 info.map[1].read_16 = xband_read_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
369 info.map[1].read_8 = xband_read_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
370 info.map[2].mask = 0xFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
371 info.map[2].aux_mask = 0xFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
372 info.map[2].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
373 info.map[2].start = 0x200000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
374 info.map[2].end = 0x210000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
375 info.map[2].ptr_index = 2; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
376 info.map[2].buffer = NULL; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
377 info.map[2].write_16 = xband_write_hi_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
378 info.map[2].write_8 = xband_write_hi_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
379 info.map[2].read_16 = xband_read_hi_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
380 info.map[2].read_8 = xband_read_hi_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
381 info.map[3].mask = 0xFFFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
382 info.map[3].aux_mask = 0xFFFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
383 info.map[3].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
384 info.map[3].start = 0x210000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
385 info.map[3].end = 0x3BC000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
386 info.map[3].ptr_index = 3; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
387 info.map[3].buffer = NULL; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
388 info.map[3].write_16 = xband_write_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
389 info.map[3].write_8 = xband_write_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
390 info.map[3].read_16 = xband_read_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
391 info.map[3].read_8 = xband_read_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
392 info.map[4].mask = 0xFFFFFF; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
393 info.map[4].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
394 info.map[4].start = 0x3BC000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
395 info.map[4].end = 0x3C0000; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
396 info.map[4].ptr_index = 4; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
397 info.map[4].write_16 = xband_reg_write_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
398 info.map[4].write_8 = xband_reg_write_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
399 info.map[4].read_16 = xband_reg_read_w; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
400 info.map[4].read_8 = xband_reg_read_b; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
401 memcpy(info.map + 5, base_map, base_chunks * sizeof(memmap_chunk)); |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
402 |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
403 return info; |
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
404 } |