diff options
Diffstat (limited to 'arm7/asm')
| -rw-r--r-- | arm7/asm/arm7_rom.s | 212 | ||||
| -rw-r--r-- | arm7/asm/macros.inc | 1 | ||||
| -rw-r--r-- | arm7/asm/macros/function.inc | 24 |
3 files changed, 237 insertions, 0 deletions
diff --git a/arm7/asm/arm7_rom.s b/arm7/asm/arm7_rom.s new file mode 100644 index 00000000..3366eba4 --- /dev/null +++ b/arm7/asm/arm7_rom.s @@ -0,0 +1,212 @@ +/* arm7_rom.s TODO: Disassemble */ + .include "asm/macros.inc" + .global ARM7AutoLoad + + .section .text + arm_func_start _start + +_start: + mov ip, #67108864 ; 0x4000000 + str ip, [ip, #520] ; 0x208 + ldr r1, _23800cc + mov r0, #58720256 ; 0x3800000 + cmp r0, r1 + movpl r1, r0 + ldr r2, _23800d0 + mov r0, #0 +_02380020: + cmp r1, r2 + stmltia r1!, {r0} + blt _02380020 + mov r0, #19 + msr CPSR_c, r0 + ldr sp, _23800d4 + mov r0, #18 + msr CPSR_c, r0 + ldr r0, _23800d8 + mov sp, r0 + ldr r1, _23800dc + sub r1, r0, r1 + mov r0, #31 + msr CPSR_fsxc, r0 + sub sp, r1, #4 + ldr r0, _23800e0 + ldr r1, _23800e4 + add r2, r1, #352 ; 0x160 +_02380068: + ldr r3, [r0], #4 + str r3, [r1], #4 + cmp r1, r2 + bmi _02380068 + ldr r0, _23800e8 + add r2, r1, #32 +_02380080: + ldr r3, [r0], #4 + str r3, [r1], #4 + cmp r1, r2 + bmi _02380080 + bl FUN_2380100 + ldr r0, _23800ec + ldr r1, [r0, #12] + ldr r2, [r0, #16] + mov r0, #0 +_023800a4: + cmp r1, r2 + strcc r0, [r1], #4 + bcc _023800a4 + bl FUN_238015C + ldr r1, _23800f0 + ldr r0, _23800f4 + str r0, [r1] + ldr r1, _23800f8 + ldr lr, _23800fc + bx r1 +_23800cc: .word FUN_023801B0 +_23800d0: .word 0x0380ff00 +_23800d4: .word 0x0380ffc0 +_23800d8: .word 0x0380ff80 +_23800dc: .word 0x00000400 +_23800e0: .word 0x023fe940 +_23800e4: .word 0x027ffa80 +_23800e8: .word 0x023fe904 +_23800ec: .word _2380198 +_23800f0: .word 0x0380fffc +_23800f4: .word 0x037f853c +_23800f8: .word 0x037f8468 +_23800fc: .word 0xffff0000 + arm_func_end _start + + arm_func_start FUN_2380100 +FUN_2380100: + ldr r0, _2380154 + ldr r1, [r0] + ldr r2, [r0, #4] + ldr r3, [r0, #8] +_02380110: + cmp r1, r2 + beq _02380150 + ldr r4, [r1], #4 + ldr r5, [r1], #4 + add r6, r4, r5 +_02380124: + cmp r4, r6 + ldrmi r7, [r3], #4 + strmi r7, [r4], #4 + bmi _02380124 + ldr r5, [r1], #4 + add r6, r4, r5 + mov r7, #0 +_02380140: + cmp r4, r6 + strcc r7, [r4], #4 + bcc _02380140 + beq _02380110 +_02380150: + b ARM7AutoLoad +_2380154: .word _2380198 +ARM7AutoLoad: + bx lr + arm_func_end FUN_2380100 + + arm_func_start FUN_238015C +FUN_238015C: + mov r0, #1 + mov r1, #0 + ldr r2, _2380194 + sub r3, r2, #4194304 ; 0x400000 +_0238016c: + strh r1, [r2] + ldrh ip, [r3] + cmp r1, ip + movne r0, #2 + bne _0238018c + add r1, r1, #1 + cmp r1, #2 + bne _0238016c +_0238018c: + strh r0, [r2] + bx lr +_2380194: .word 0x027ffffa +_2380198: + .word UNK_23A92F8 + .word UNK_23A931C + .word FUN_023801B0 + .word FUN_023801B0 + .word FUN_023801B0 + .word 0x00000000 + arm_func_end FUN_238015C + + arm_func_start FUN_023801B0 +FUN_023801B0: + .incbin "baserom.nds", 0x30D1B0, 0x91B0 + + thumb_func_start ROM7_SVC_SoftReset +ROM7_SVC_SoftReset: ; 0x02389360 + swi 0 + bx lr + + thumb_func_start ROM7_SVC_WaitByLoop +ROM7_SVC_WaitByLoop: ; 0x02389364 + swi 3 + bx lr + + thumb_func_start ROM7_SVC_WaitIntr +ROM7_SVC_WaitIntr: ; 0x02389368 + ldr r2, =0x04000000 + mov ip, r2 + mov r2, #0x0 + swi 4 + bx lr + .pool + + thumb_func_start ROM7_SVC_WaitVBlankIntr +ROM7_SVC_WaitVBlankIntr: + mov r2, #0x0 + swi 5 + bx lr + + non_word_aligned_thumb_func_start ROM7_SVC_Halt +ROM7_SVC_Halt: + swi 6 + bx lr + + non_word_aligned_thumb_func_start ROM7_SVC_Stop +ROM7_SVC_Stop: + swi 7 + bx lr + + non_word_aligned_thumb_func_start ROM7_SVC_SoundBias +ROM7_SVC_SoundBias: + swi 8 + bx lr + + non_word_aligned_thumb_func_start ROM7_SVC_SoundBiasSet +ROM7_SVC_SoundBiasSet: + add r1, r0, #0x0 + mov r0, #0x1 + swi 8 + bx lr + + non_word_aligned_thumb_func_start ROM7_SVC_SoundBiasReset +ROM7_SVC_SoundBiasReset: + add r1, r0, #0x0 + mov r0, #0x0 + swi 8 + bx lr + + non_word_aligned_thumb_func_start ROM7_SVC_Div +ROM7_SVC_Div: + swi 9 + bx lr + + non_word_aligned_thumb_func_start ROM7_SVC_DivRem +ROM7_SVC_DivRem: + swi 9 + add r0, r1, #0x0 + bx lr + .incbin "baserom.nds", 0x3163a4, 0x1ff54 + +UNK_23A92F8: + .incbin "baserom.nds", 0x3362F8, 0x24 + +UNK_23A931C: diff --git a/arm7/asm/macros.inc b/arm7/asm/macros.inc new file mode 100644 index 00000000..156b2b09 --- /dev/null +++ b/arm7/asm/macros.inc @@ -0,0 +1 @@ + .include "asm/macros/function.inc" diff --git a/arm7/asm/macros/function.inc b/arm7/asm/macros/function.inc new file mode 100644 index 00000000..6b9e5f40 --- /dev/null +++ b/arm7/asm/macros/function.inc @@ -0,0 +1,24 @@ + .macro arm_func_start name + .balign 4, 0 + .global \name + .arm + .endm + + .macro arm_func_end name + .size \name, .-\name + .endm + + .macro thumb_func_start name + .balign 4, 0 + .global \name + .thumb + .endm + + .macro non_word_aligned_thumb_func_start name + .global \name + .thumb + .endm + + .macro thumb_func_end name + .size \name, .-\name + .endm |