lxdream 0.9.1| filename | src/aica/armmem.c |
| changeset | 11:0a82ef380c45 |
| prev | 7:976a16e92aab |
| next | 14:fc481a638848 |
| author | nkeynes |
| date | Sun Dec 11 12:00:09 2005 +0000 (15 years ago) |
| permissions | -rw-r--r-- |
| last change | Moved arm material under aica/ Hooked arm disasm up |
| view | annotate | diff | log | raw |
1 #include <stdlib.h>
2 #include "dream.h"
3 #include "mem.h"
5 char *arm_mem = NULL;
7 void arm_mem_init() {
8 arm_mem = mem_get_region_by_name( MEM_REGION_AUDIO );
10 }
12 int32_t arm_read_long( uint32_t addr ) {
13 if( addr < 0x00200000 ) {
14 return *(int32_t *)(arm_mem + addr);
15 /* Main sound ram */
16 } else if( addr >= 0x00800000 && addr <= 0x00803000 ) {
17 /* Sound registers / scratch ram */
18 } else {
19 /* Undefined memory */
20 ERROR( "Attempted long read to undefined page: %08X",
21 addr );
22 return 0;
23 }
24 }
26 int16_t arm_read_word( uint32_t addr ) {
27 if( addr < 0x00200000 ) {
28 return *(int16_t *)(arm_mem + addr);
29 /* Main sound ram */
30 } else {
31 /* Undefined memory */
32 ERROR( "Attempted word read to undefined page: %08X",
33 addr );
34 return 0;
35 }
37 }
39 int8_t arm_read_byte( uint32_t addr ) {
40 if( addr < 0x00200000 ) {
41 return *(int8_t *)(arm_mem + addr);
42 /* Main sound ram */
43 } else {
44 /* Undefined memory */
45 ERROR( "Attempted byte read to undefined page: %08X",
46 addr );
47 return 0;
48 }
49 }
51 uint32_t arm_read_long_user( uint32_t addr ) {
53 }
55 uint32_t arm_read_byte_user( uint32_t addr ) {
57 }
.