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 (18 years ago) |
| permissions | -rw-r--r-- |
| last change | Moved arm material under aica/ Hooked arm disasm up |
| file | annotate | diff | log | raw |
| nkeynes@11 | 1 | #include <stdlib.h> |
| nkeynes@11 | 2 | #include "dream.h" |
| nkeynes@7 | 3 | #include "mem.h" |
| nkeynes@7 | 4 | |
| nkeynes@11 | 5 | char *arm_mem = NULL; |
| nkeynes@11 | 6 | |
| nkeynes@7 | 7 | void arm_mem_init() {
|
| nkeynes@11 | 8 | arm_mem = mem_get_region_by_name( MEM_REGION_AUDIO ); |
| nkeynes@11 | 9 | |
| nkeynes@7 | 10 | } |
| nkeynes@7 | 11 | |
| nkeynes@11 | 12 | int32_t arm_read_long( uint32_t addr ) {
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| nkeynes@11 | 13 | if( addr < 0x00200000 ) {
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| nkeynes@11 | 14 | return *(int32_t *)(arm_mem + addr); |
| nkeynes@11 | 15 | /* Main sound ram */ |
| nkeynes@11 | 16 | } else if( addr >= 0x00800000 && addr <= 0x00803000 ) {
|
| nkeynes@11 | 17 | /* Sound registers / scratch ram */ |
| nkeynes@11 | 18 | } else {
|
| nkeynes@11 | 19 | /* Undefined memory */ |
| nkeynes@11 | 20 | ERROR( "Attempted long read to undefined page: %08X", |
| nkeynes@11 | 21 | addr ); |
| nkeynes@11 | 22 | return 0; |
| nkeynes@11 | 23 | } |
| nkeynes@7 | 24 | } |
| nkeynes@7 | 25 | |
| nkeynes@11 | 26 | int16_t arm_read_word( uint32_t addr ) {
|
| nkeynes@11 | 27 | if( addr < 0x00200000 ) {
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| nkeynes@11 | 28 | return *(int16_t *)(arm_mem + addr); |
| nkeynes@11 | 29 | /* Main sound ram */ |
| nkeynes@11 | 30 | } else {
|
| nkeynes@11 | 31 | /* Undefined memory */ |
| nkeynes@11 | 32 | ERROR( "Attempted word read to undefined page: %08X", |
| nkeynes@11 | 33 | addr ); |
| nkeynes@11 | 34 | return 0; |
| nkeynes@11 | 35 | } |
| nkeynes@11 | 36 | |
| nkeynes@7 | 37 | } |
| nkeynes@7 | 38 | |
| nkeynes@11 | 39 | int8_t arm_read_byte( uint32_t addr ) {
|
| nkeynes@11 | 40 | if( addr < 0x00200000 ) {
|
| nkeynes@11 | 41 | return *(int8_t *)(arm_mem + addr); |
| nkeynes@11 | 42 | /* Main sound ram */ |
| nkeynes@11 | 43 | } else {
|
| nkeynes@11 | 44 | /* Undefined memory */ |
| nkeynes@11 | 45 | ERROR( "Attempted byte read to undefined page: %08X", |
| nkeynes@11 | 46 | addr ); |
| nkeynes@11 | 47 | return 0; |
| nkeynes@11 | 48 | } |
| nkeynes@7 | 49 | } |
| nkeynes@7 | 50 | |
| nkeynes@11 | 51 | uint32_t arm_read_long_user( uint32_t addr ) {
|
| nkeynes@11 | 52 | |
| nkeynes@11 | 53 | } |
| nkeynes@11 | 54 | |
| nkeynes@11 | 55 | uint32_t arm_read_byte_user( uint32_t addr ) {
|
| nkeynes@11 | 56 | |
| nkeynes@11 | 57 | } |
.