decompile dma3_manager
This commit is contained in:
sceptillion
@@ -1,578 +0,0 @@
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.include "asm/macros.inc"
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.include "constants/constants.inc"
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.syntax unified
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.text
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thumb_func_start ClearDma3Requests
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ClearDma3Requests: @ 8000BFC
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push {lr}
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ldr r2, _08000C28 @ =gUnknown_30008C8
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movs r0, 0x1
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strb r0, [r2]
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ldr r1, _08000C2C @ =gUnknown_30008C9
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movs r0, 0
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strb r0, [r1]
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movs r3, 0
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ldr r0, _08000C30 @ =gUnknown_30000C8
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movs r1, 0x7F
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_08000C10:
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strh r3, [r0, 0x8]
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str r3, [r0]
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str r3, [r0, 0x4]
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adds r0, 0x10
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subs r1, 0x1
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cmp r1, 0
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bge _08000C10
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movs r0, 0
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strb r0, [r2]
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pop {r0}
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bx r0
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.align 2, 0
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_08000C28: .4byte gUnknown_30008C8
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_08000C2C: .4byte gUnknown_30008C9
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_08000C30: .4byte gUnknown_30000C8
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thumb_func_end ClearDma3Requests
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thumb_func_start ProcessDma3Requests
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ProcessDma3Requests: @ 8000C34
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push {r4-r7,lr}
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mov r7, r10
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mov r6, r9
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mov r5, r8
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push {r5-r7}
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sub sp, 0xC
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ldr r0, _08000CB0 @ =gUnknown_30008C8
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ldrb r0, [r0]
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cmp r0, 0
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beq _08000C4A
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b _08000E8A
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_08000C4A:
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movs r0, 0
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str r0, [sp, 0x8]
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ldr r1, _08000CB4 @ =gUnknown_30000C8
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ldr r2, _08000CB8 @ =gUnknown_30008C9
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ldrb r0, [r2]
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lsls r0, 4
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adds r0, r1
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ldrh r0, [r0, 0x8]
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mov r12, r2
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cmp r0, 0
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bne _08000C62
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b _08000E8A
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_08000C62:
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mov r8, r1
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adds r1, 0x4
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mov r10, r1
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movs r6, 0x80
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lsls r6, 5
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ldr r7, _08000CBC @ =0x040000d4
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movs r2, 0
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mov r9, r2
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_08000C72:
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mov r3, r12
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ldrb r0, [r3]
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lsls r5, r0, 4
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mov r0, r8
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adds r1, r5, r0
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ldrh r0, [r1, 0x8]
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ldr r2, [sp, 0x8]
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adds r0, r2, r0
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lsls r0, 16
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lsrs r0, 16
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str r0, [sp, 0x8]
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movs r0, 0xA0
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lsls r0, 8
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ldr r3, [sp, 0x8]
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cmp r3, r0
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bls _08000C94
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b _08000E8A
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_08000C94:
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ldr r0, _08000CC0 @ =0x04000006
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ldrb r0, [r0]
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cmp r0, 0xE0
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bls _08000C9E
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b _08000E8A
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_08000C9E:
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ldrh r0, [r1, 0xA]
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cmp r0, 0x2
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beq _08000D14
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cmp r0, 0x2
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bgt _08000CC4
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cmp r0, 0x1
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beq _08000CD0
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b _08000E34
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.align 2, 0
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_08000CB0: .4byte gUnknown_30008C8
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_08000CB4: .4byte gUnknown_30000C8
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_08000CB8: .4byte gUnknown_30008C9
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_08000CBC: .4byte 0x040000d4
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_08000CC0: .4byte 0x04000006
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_08000CC4:
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cmp r0, 0x3
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beq _08000D80
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cmp r0, 0x4
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bne _08000CCE
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b _08000DCC
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_08000CCE:
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b _08000E34
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_08000CD0:
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ldr r3, [r1]
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mov r2, r10
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adds r0, r5, r2
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ldr r2, [r0]
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ldrh r1, [r1, 0x8]
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cmp r1, r6
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bhi _08000CEA
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str r3, [r7]
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str r2, [r7, 0x4]
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lsrs r0, r1, 2
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movs r1, 0x84
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lsls r1, 24
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b _08000DEE
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_08000CEA:
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ldr r4, _08000D0C @ =0x040000d4
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str r3, [r4]
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str r2, [r4, 0x4]
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ldr r0, _08000D10 @ =0x84000400
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str r0, [r4, 0x8]
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ldr r0, [r4, 0x8]
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adds r3, r6
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adds r2, r6
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subs r1, r6
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cmp r1, r6
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bhi _08000CEA
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str r3, [r4]
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str r2, [r4, 0x4]
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lsrs r0, r1, 2
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movs r1, 0x84
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lsls r1, 24
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b _08000DBA
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.align 2, 0
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_08000D0C: .4byte 0x040000d4
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_08000D10: .4byte 0x84000400
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_08000D14:
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mov r3, r10
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adds r0, r5, r3
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ldr r4, [r0]
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ldrh r1, [r1, 0x8]
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cmp r1, r6
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bhi _08000D38
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mov r0, r8
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adds r0, 0xC
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adds r0, r5, r0
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ldr r0, [r0]
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str r0, [sp]
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mov r5, sp
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str r5, [r7]
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str r4, [r7, 0x4]
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lsrs r0, r1, 2
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movs r1, 0x85
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lsls r1, 24
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b _08000DEE
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_08000D38:
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mov r2, r12
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ldrb r0, [r2]
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lsls r0, 4
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mov r5, r8
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adds r5, 0xC
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adds r0, r5
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ldr r0, [r0]
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str r0, [sp]
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ldr r3, _08000D78 @ =0x040000d4
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mov r0, sp
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str r0, [r3]
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str r4, [r3, 0x4]
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ldr r0, _08000D7C @ =0x85000400
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str r0, [r3, 0x8]
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ldr r0, [r3, 0x8]
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adds r4, r6
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subs r1, r6
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cmp r1, r6
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bhi _08000D38
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ldrb r0, [r2]
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lsls r0, 4
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adds r0, r5
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ldr r0, [r0]
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str r0, [sp]
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mov r2, sp
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str r2, [r3]
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str r4, [r3, 0x4]
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lsrs r0, r1, 2
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movs r1, 0x85
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lsls r1, 24
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b _08000E2E
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.align 2, 0
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_08000D78: .4byte 0x040000d4
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_08000D7C: .4byte 0x85000400
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_08000D80:
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ldr r3, [r1]
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mov r2, r10
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adds r0, r5, r2
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ldr r2, [r0]
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ldrh r1, [r1, 0x8]
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cmp r1, r6
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bhi _08000D9A
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str r3, [r7]
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str r2, [r7, 0x4]
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lsrs r0, r1, 1
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movs r1, 0x80
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lsls r1, 24
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b _08000DEE
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_08000D9A:
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ldr r4, _08000DC4 @ =0x040000d4
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str r3, [r4]
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str r2, [r4, 0x4]
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ldr r0, _08000DC8 @ =0x80000800
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str r0, [r4, 0x8]
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ldr r0, [r4, 0x8]
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adds r3, r6
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adds r2, r6
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subs r1, r6
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cmp r1, r6
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bhi _08000D9A
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str r3, [r4]
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str r2, [r4, 0x4]
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lsrs r0, r1, 1
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movs r1, 0x80
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lsls r1, 24
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_08000DBA:
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orrs r0, r1
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str r0, [r4, 0x8]
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ldr r0, [r4, 0x8]
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b _08000E34
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.align 2, 0
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_08000DC4: .4byte 0x040000d4
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_08000DC8: .4byte 0x80000800
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_08000DCC:
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mov r3, r10
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adds r0, r5, r3
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ldr r2, [r0]
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ldrh r4, [r1, 0x8]
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add r1, sp, 0x4
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cmp r4, r6
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bhi _08000DF6
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mov r0, r8
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adds r0, 0xC
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adds r0, r5, r0
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ldr r0, [r0]
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strh r0, [r1]
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str r1, [r7]
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str r2, [r7, 0x4]
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lsrs r0, r4, 1
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movs r1, 0x81
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lsls r1, 24
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_08000DEE:
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orrs r0, r1
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str r0, [r7, 0x8]
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ldr r0, [r7, 0x8]
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b _08000E34
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_08000DF6:
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mov r5, r12
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ldrb r0, [r5]
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lsls r0, 4
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ldr r3, _08000E9C @ =gUnknown_30000D4
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adds r0, r3
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ldr r0, [r0]
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strh r0, [r1]
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ldr r3, _08000EA0 @ =0x040000d4
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str r1, [r3]
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str r2, [r3, 0x4]
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ldr r0, _08000EA4 @ =0x81000800
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str r0, [r3, 0x8]
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ldr r0, [r3, 0x8]
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adds r2, r6
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subs r4, r6
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cmp r4, r6
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bhi _08000DF6
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ldrb r0, [r5]
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lsls r0, 4
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ldr r5, _08000E9C @ =gUnknown_30000D4
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adds r0, r5
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ldr r0, [r0]
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strh r0, [r1]
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str r1, [r3]
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str r2, [r3, 0x4]
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lsrs r0, r4, 1
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movs r1, 0x81
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lsls r1, 24
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_08000E2E:
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orrs r0, r1
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str r0, [r3, 0x8]
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ldr r0, [r3, 0x8]
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_08000E34:
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ldr r1, _08000EA8 @ =gUnknown_30000C8
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mov r3, r12
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ldrb r0, [r3]
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lsls r0, 4
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adds r0, r1
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mov r2, r9
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str r2, [r0]
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ldrb r0, [r3]
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lsls r0, 4
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add r0, r10
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str r2, [r0]
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ldrb r0, [r3]
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lsls r0, 4
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adds r0, r1
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movs r4, 0
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strh r2, [r0, 0x8]
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ldrb r0, [r3]
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lsls r0, 4
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adds r0, r1
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mov r5, r9
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strh r5, [r0, 0xA]
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ldrb r0, [r3]
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lsls r0, 4
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adds r1, 0xC
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adds r0, r1
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mov r1, r9
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str r1, [r0]
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ldrb r0, [r3]
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adds r0, 0x1
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strb r0, [r3]
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lsls r0, 24
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cmp r0, 0
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bge _08000E78
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strb r4, [r3]
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_08000E78:
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mov r2, r12
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ldrb r0, [r2]
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lsls r0, 4
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ldr r3, _08000EA8 @ =gUnknown_30000C8
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adds r0, r3
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ldrh r0, [r0, 0x8]
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cmp r0, 0
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beq _08000E8A
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b _08000C72
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_08000E8A:
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add sp, 0xC
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pop {r3-r5}
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mov r8, r3
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mov r9, r4
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mov r10, r5
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pop {r4-r7}
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pop {r0}
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bx r0
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.align 2, 0
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_08000E9C: .4byte gUnknown_30000D4
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_08000EA0: .4byte 0x040000d4
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_08000EA4: .4byte 0x81000800
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_08000EA8: .4byte gUnknown_30000C8
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thumb_func_end ProcessDma3Requests
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thumb_func_start RequestDma3Copy
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RequestDma3Copy: @ 8000EAC
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push {r4-r7,lr}
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mov r7, r10
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mov r6, r9
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mov r5, r8
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push {r5-r7}
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mov r12, r0
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mov r8, r1
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lsls r2, 16
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lsrs r7, r2, 16
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lsls r3, 24
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lsrs r4, r3, 24
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movs r5, 0
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ldr r1, _08000EF8 @ =gUnknown_30008C8
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movs r0, 0x1
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strb r0, [r1]
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ldr r0, _08000EFC @ =gUnknown_30008C9
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ldrb r2, [r0]
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mov r10, r1
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ldr r6, _08000F00 @ =gUnknown_30000C8
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mov r9, r6
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lsls r0, r2, 4
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adds r1, r0, r6
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_08000ED8:
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lsls r3, r2, 4
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ldrh r0, [r1, 0x8]
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cmp r0, 0
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bne _08000F18
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mov r0, r12
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str r0, [r1]
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mov r0, r9
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adds r0, 0x4
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adds r0, r3, r0
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mov r3, r8
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str r3, [r0]
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strh r7, [r1, 0x8]
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cmp r4, 0x1
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bne _08000F04
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strh r4, [r1, 0xA]
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b _08000F08
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.align 2, 0
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_08000EF8: .4byte gUnknown_30008C8
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_08000EFC: .4byte gUnknown_30008C9
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_08000F00: .4byte gUnknown_30000C8
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_08000F04:
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movs r0, 0x3
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strh r0, [r1, 0xA]
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_08000F08:
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movs r0, 0
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ldr r1, _08000F14 @ =gUnknown_30008C8
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strb r0, [r1]
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lsls r0, r2, 16
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asrs r0, 16
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b _08000F34
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.align 2, 0
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_08000F14: .4byte gUnknown_30008C8
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_08000F18:
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adds r1, 0x10
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adds r2, 0x1
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cmp r2, 0x7F
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ble _08000F24
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adds r1, r6, 0
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movs r2, 0
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_08000F24:
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adds r5, 0x1
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cmp r5, 0x7F
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ble _08000ED8
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movs r0, 0
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mov r3, r10
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strb r0, [r3]
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movs r0, 0x1
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negs r0, r0
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_08000F34:
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pop {r3-r5}
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mov r8, r3
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mov r9, r4
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mov r10, r5
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pop {r4-r7}
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pop {r1}
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bx r1
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thumb_func_end RequestDma3Copy
|
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thumb_func_start RequestDma3Fill
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RequestDma3Fill: @ 8000F44
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push {r4-r7,lr}
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mov r7, r10
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||||
mov r6, r9
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mov r5, r8
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push {r5-r7}
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||||
mov r9, r0
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||||
mov r8, r1
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lsls r2, 16
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lsrs r7, r2, 16
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||||
lsls r3, 24
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||||
lsrs r5, r3, 24
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||||
movs r6, 0
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ldr r0, _08000F9C @ =gUnknown_30008C9
|
||||
ldrb r2, [r0]
|
||||
ldr r1, _08000FA0 @ =gUnknown_30008C8
|
||||
movs r0, 0x1
|
||||
strb r0, [r1]
|
||||
mov r10, r1
|
||||
ldr r0, _08000FA4 @ =gUnknown_30000C8
|
||||
mov r12, r0
|
||||
mov r4, r12
|
||||
lsls r0, r2, 4
|
||||
adds r0, 0x8
|
||||
adds r1, r0, r4
|
||||
_08000F74:
|
||||
lsls r3, r2, 4
|
||||
ldrh r0, [r1]
|
||||
cmp r0, 0
|
||||
bne _08000FBC
|
||||
adds r0, r4, 0x4
|
||||
adds r0, r3, r0
|
||||
mov r6, r8
|
||||
str r6, [r0]
|
||||
strh r7, [r1]
|
||||
strh r5, [r1, 0x2]
|
||||
adds r0, r4, 0
|
||||
adds r0, 0xC
|
||||
adds r0, r3, r0
|
||||
mov r3, r9
|
||||
str r3, [r0]
|
||||
cmp r5, 0x1
|
||||
bne _08000FA8
|
||||
movs r0, 0x2
|
||||
b _08000FAA
|
||||
.align 2, 0
|
||||
_08000F9C: .4byte gUnknown_30008C9
|
||||
_08000FA0: .4byte gUnknown_30008C8
|
||||
_08000FA4: .4byte gUnknown_30000C8
|
||||
_08000FA8:
|
||||
movs r0, 0x4
|
||||
_08000FAA:
|
||||
strh r0, [r1, 0x2]
|
||||
movs r0, 0
|
||||
ldr r6, _08000FB8 @ =gUnknown_30008C8
|
||||
strb r0, [r6]
|
||||
lsls r0, r2, 16
|
||||
asrs r0, 16
|
||||
b _08000FDA
|
||||
.align 2, 0
|
||||
_08000FB8: .4byte gUnknown_30008C8
|
||||
_08000FBC:
|
||||
adds r1, 0x10
|
||||
adds r2, 0x1
|
||||
cmp r2, 0x7F
|
||||
ble _08000FCA
|
||||
mov r1, r12
|
||||
adds r1, 0x8
|
||||
movs r2, 0
|
||||
_08000FCA:
|
||||
adds r6, 0x1
|
||||
cmp r6, 0x7F
|
||||
ble _08000F74
|
||||
movs r0, 0
|
||||
mov r1, r10
|
||||
strb r0, [r1]
|
||||
movs r0, 0x1
|
||||
negs r0, r0
|
||||
_08000FDA:
|
||||
pop {r3-r5}
|
||||
mov r8, r3
|
||||
mov r9, r4
|
||||
mov r10, r5
|
||||
pop {r4-r7}
|
||||
pop {r1}
|
||||
bx r1
|
||||
thumb_func_end RequestDma3Fill
|
||||
|
||||
thumb_func_start CheckForSpaceForDma3Request
|
||||
CheckForSpaceForDma3Request: @ 8000FE8
|
||||
push {lr}
|
||||
movs r2, 0
|
||||
lsls r0, 16
|
||||
asrs r1, r0, 16
|
||||
movs r3, 0x1
|
||||
negs r3, r3
|
||||
cmp r1, r3
|
||||
bne _08001010
|
||||
ldr r1, _0800100C @ =gUnknown_30000C8
|
||||
_08000FFA:
|
||||
ldrh r0, [r1, 0x8]
|
||||
cmp r0, 0
|
||||
bne _0800101C
|
||||
adds r1, 0x10
|
||||
adds r2, 0x1
|
||||
cmp r2, 0x7F
|
||||
ble _08000FFA
|
||||
_08001008:
|
||||
movs r0, 0
|
||||
b _08001020
|
||||
.align 2, 0
|
||||
_0800100C: .4byte gUnknown_30000C8
|
||||
_08001010:
|
||||
ldr r0, _08001024 @ =gUnknown_30000C8
|
||||
lsls r1, 4
|
||||
adds r1, r0
|
||||
ldrh r0, [r1, 0x8]
|
||||
cmp r0, 0
|
||||
beq _08001008
|
||||
_0800101C:
|
||||
movs r0, 0x1
|
||||
negs r0, r0
|
||||
_08001020:
|
||||
pop {r1}
|
||||
bx r1
|
||||
.align 2, 0
|
||||
_08001024: .4byte gUnknown_30000C8
|
||||
thumb_func_end CheckForSpaceForDma3Request
|
||||
|
||||
.align 2, 0 @ Don't pad with nop.
|
||||
+4
-4
@@ -2770,11 +2770,11 @@ _081E0956:
|
||||
sub_81E095C: @ 81E095C
|
||||
push {lr}
|
||||
ldr r2, _081E0964 @ =gUnknown_86FC068
|
||||
ldr r3, _081E0968 @ =gUnknown_30000F0
|
||||
ldr r3, _081E0968 @ =0x30000F0
|
||||
b _081E0976
|
||||
.align 2, 0
|
||||
_081E0964: .4byte gUnknown_86FC068
|
||||
_081E0968: .4byte gUnknown_30000F0
|
||||
_081E0968: .4byte 0x30000F0
|
||||
_081E096C:
|
||||
ldrb r0, [r3]
|
||||
adds r3, 0x1
|
||||
@@ -2800,7 +2800,7 @@ _081E0984:
|
||||
lsrs r1, r0, 24
|
||||
cmp r1, 0x59
|
||||
bls _081E0984
|
||||
ldr r0, _081E09C0 @ =gUnknown_30000FA
|
||||
ldr r0, _081E09C0 @ =0x30000FA
|
||||
ldrh r0, [r0]
|
||||
cmp r3, r0
|
||||
bne _081E09CC
|
||||
@@ -2819,7 +2819,7 @@ _081E0984:
|
||||
movs r0, 0
|
||||
b _081E09CE
|
||||
.align 2, 0
|
||||
_081E09C0: .4byte gUnknown_30000FA
|
||||
_081E09C0: .4byte 0x30000FA
|
||||
_081E09C4: .4byte gUnknown_3007460
|
||||
_081E09C8: .4byte gUnknown_3007464
|
||||
_081E09CC:
|
||||
|
||||
+1
-1
@@ -84,7 +84,7 @@ SECTIONS {
|
||||
asm/crt0.o(.text);
|
||||
src/main.o(.text);
|
||||
src/gpu_regs.o(.text);
|
||||
asm/dma3_manager.o(.text);
|
||||
src/dma3_manager.o(.text);
|
||||
asm/bg.o(.text);
|
||||
asm/malloc.o(.text);
|
||||
asm/text_printer.o(.text);
|
||||
|
||||
@@ -0,0 +1,524 @@
|
||||
#include "global.h"
|
||||
#include "dma3.h"
|
||||
|
||||
IWRAM_DATA struct {
|
||||
/* 0x00 */ const u8 *src;
|
||||
/* 0x04 */ u8 *dest;
|
||||
/* 0x08 */ u16 size;
|
||||
/* 0x0A */ u16 mode;
|
||||
/* 0x0C */ u32 value;
|
||||
} gDma3Requests[128];
|
||||
|
||||
static bool8 gDma3ManagerLocked;
|
||||
static u8 gDma3RequestCursor;
|
||||
|
||||
void ClearDma3Requests(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
gDma3ManagerLocked = TRUE;
|
||||
gDma3RequestCursor = 0;
|
||||
|
||||
for(i = 0; i < (u8)ARRAY_COUNT(gDma3Requests); i++)
|
||||
{
|
||||
gDma3Requests[i].size = 0;
|
||||
gDma3Requests[i].src = 0;
|
||||
gDma3Requests[i].dest = 0;
|
||||
}
|
||||
|
||||
gDma3ManagerLocked = FALSE;
|
||||
}
|
||||
|
||||
#ifdef NONMATCHING
|
||||
void ProcessDma3Requests(void)
|
||||
{
|
||||
// NOTE: the fillerA member of the DMA struct is actually u32 value;
|
||||
u16 total_size;
|
||||
|
||||
if (gDma3ManagerLocked)
|
||||
return;
|
||||
|
||||
total_size = 0;
|
||||
|
||||
// as long as there are DMA requests to process (unless size or vblank is an issue), do not exit
|
||||
while (gDma3Requests[gDma3RequestCursor].size)
|
||||
{
|
||||
total_size += gDma3Requests[gDma3RequestCursor].size;
|
||||
|
||||
if (total_size > 0xA000)
|
||||
return; // don't do too much at once
|
||||
|
||||
if (REG_VCOUNT > 224)
|
||||
return;// we're about to leave vblank, stop
|
||||
|
||||
switch (gDma3Requests[gDma3RequestCursor].mode)
|
||||
{
|
||||
case 1: // regular 32-bit copy
|
||||
// _08000C8C
|
||||
if(gDma3Requests[gDma3RequestCursor].size <= 0x1000)
|
||||
{
|
||||
DmaCopy32(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
}
|
||||
while (gDma3Requests[gDma3RequestCursor].size > 0x1000)
|
||||
{
|
||||
DmaCopy32(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, 0x1000);
|
||||
gDma3Requests[gDma3RequestCursor].src += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].dest += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].size -= 0x1000;
|
||||
}
|
||||
DmaCopy32(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
case 2: // repeat a single 32-bit value across RAM
|
||||
// _08000CD0
|
||||
while (gDma3Requests[gDma3RequestCursor].size > 0x1000)
|
||||
{
|
||||
DmaFill32(3, gDma3Requests[gDma3RequestCursor].value, gDma3Requests[gDma3RequestCursor].dest, 0x1000);
|
||||
gDma3Requests[gDma3RequestCursor].dest += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].size -= 0x1000;
|
||||
}
|
||||
DmaFill32(3, gDma3Requests[gDma3RequestCursor].value, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
case 3: // regular 16-bit copy
|
||||
// _08000D3C
|
||||
while (gDma3Requests[gDma3RequestCursor].size > 0x1000)
|
||||
{
|
||||
DmaCopy16(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, 0x1000);
|
||||
gDma3Requests[gDma3RequestCursor].src += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].dest += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].size -= 0x1000;
|
||||
}
|
||||
DmaCopy16(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
case 4: // repeat a single 16-bit value across RAM
|
||||
// _08000D88
|
||||
while (gDma3Requests[gDma3RequestCursor].size > 0x1000)
|
||||
{
|
||||
DmaFill16(3, gDma3Requests[gDma3RequestCursor].value, gDma3Requests[gDma3RequestCursor].dest, 0x1000);
|
||||
gDma3Requests[gDma3RequestCursor].dest += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].size -= 0x1000;
|
||||
}
|
||||
DmaFill16(3, gDma3Requests[gDma3RequestCursor].value, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
}
|
||||
gDma3Requests[gDma3RequestCursor].src = NULL;
|
||||
gDma3Requests[gDma3RequestCursor].dest = NULL;
|
||||
gDma3Requests[gDma3RequestCursor].size = 0;
|
||||
gDma3Requests[gDma3RequestCursor].mode = 0;
|
||||
gDma3Requests[gDma3RequestCursor].value = 0;
|
||||
gDma3RequestCursor++;
|
||||
|
||||
if (gDma3RequestCursor >= 128) // loop back to the first DMA request
|
||||
gDma3RequestCursor = 0;
|
||||
}
|
||||
}
|
||||
#else
|
||||
__attribute__((naked))
|
||||
void ProcessDma3Requests(void)
|
||||
{
|
||||
asm(".syntax unified\n\
|
||||
push {r4-r7,lr}\n\
|
||||
mov r7, r10\n\
|
||||
mov r6, r9\n\
|
||||
mov r5, r8\n\
|
||||
push {r5-r7}\n\
|
||||
sub sp, 0xC\n\
|
||||
ldr r0, =gDma3ManagerLocked\n\
|
||||
ldrb r0, [r0]\n\
|
||||
cmp r0, 0\n\
|
||||
beq _08000C06\n\
|
||||
b _08000E46\n\
|
||||
_08000C06:\n\
|
||||
movs r0, 0\n\
|
||||
str r0, [sp, 0x8]\n\
|
||||
ldr r1, =gDma3Requests\n\
|
||||
ldr r2, =gDma3RequestCursor\n\
|
||||
ldrb r0, [r2]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r1\n\
|
||||
ldrh r0, [r0, 0x8]\n\
|
||||
mov r12, r2\n\
|
||||
cmp r0, 0\n\
|
||||
bne _08000C1E\n\
|
||||
b _08000E46\n\
|
||||
_08000C1E:\n\
|
||||
mov r8, r1\n\
|
||||
adds r1, 0x4\n\
|
||||
mov r10, r1\n\
|
||||
movs r6, 0x80\n\
|
||||
lsls r6, 5\n\
|
||||
ldr r7, =0x040000D4 @REG_DMA3\n\
|
||||
movs r2, 0\n\
|
||||
mov r9, r2\n\
|
||||
_08000C2E:\n\
|
||||
mov r3, r12 @ gDma3RequestCursor\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r5, r0, 4\n\
|
||||
mov r0, r8 @ gDma3Requests\n\
|
||||
adds r1, r5, r0 @ gDma3Requests[gDma3RequestCursor]\n\
|
||||
ldrh r0, [r1, 0x8] @ gDma3Requests[gDma3RequestCursor].size\n\
|
||||
ldr r2, [sp, 0x8]\n\
|
||||
adds r0, r2, r0\n\
|
||||
lsls r0, 16\n\
|
||||
lsrs r0, 16\n\
|
||||
str r0, [sp, 0x8]\n\
|
||||
movs r0, 0xA0\n\
|
||||
lsls r0, 8\n\
|
||||
ldr r3, [sp, 0x8]\n\
|
||||
cmp r3, r0\n\
|
||||
bls _08000C50\n\
|
||||
b _08000E46\n\
|
||||
_08000C50:\n\
|
||||
ldr r0, =0x04000006 @REG_VCOUNT\n\
|
||||
ldrb r0, [r0]\n\
|
||||
cmp r0, 0xE0\n\
|
||||
bls _08000C5A\n\
|
||||
b _08000E46\n\
|
||||
_08000C5A:\n\
|
||||
ldrh r0, [r1, 0xA]\n\
|
||||
cmp r0, 0x2\n\
|
||||
beq _08000CD0\n\
|
||||
cmp r0, 0x2\n\
|
||||
bgt _08000C80\n\
|
||||
cmp r0, 0x1\n\
|
||||
beq _08000C8C\n\
|
||||
b _08000DF0\n\
|
||||
.pool\n\
|
||||
_08000C80:\n\
|
||||
cmp r0, 0x3\n\
|
||||
beq _08000D3C\n\
|
||||
cmp r0, 0x4\n\
|
||||
bne _08000C8A\n\
|
||||
b _08000D88\n\
|
||||
_08000C8A:\n\
|
||||
b _08000DF0\n\
|
||||
_08000C8C:\n\
|
||||
ldr r3, [r1]\n\
|
||||
mov r2, r10\n\
|
||||
adds r0, r5, r2\n\
|
||||
ldr r2, [r0]\n\
|
||||
ldrh r1, [r1, 0x8]\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000CA6\n\
|
||||
str r3, [r7]\n\
|
||||
str r2, [r7, 0x4]\n\
|
||||
lsrs r0, r1, 2\n\
|
||||
movs r1, 0x84\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000DAA\n\
|
||||
_08000CA6:\n\
|
||||
ldr r4, =0x040000D4 @REG_DMA3\n\
|
||||
str r3, [r4]\n\
|
||||
str r2, [r4, 0x4]\n\
|
||||
ldr r0, =0x84000400\n\
|
||||
str r0, [r4, 0x8]\n\
|
||||
ldr r0, [r4, 0x8]\n\
|
||||
adds r3, r6\n\
|
||||
adds r2, r6\n\
|
||||
subs r1, r6\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000CA6\n\
|
||||
str r3, [r4]\n\
|
||||
str r2, [r4, 0x4]\n\
|
||||
lsrs r0, r1, 2\n\
|
||||
movs r1, 0x84\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000D76\n\
|
||||
.pool\n\
|
||||
_08000CD0:\n\
|
||||
mov r3, r10\n\
|
||||
adds r0, r5, r3\n\
|
||||
ldr r4, [r0]\n\
|
||||
ldrh r1, [r1, 0x8]\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000CF4\n\
|
||||
mov r0, r8\n\
|
||||
adds r0, 0xC\n\
|
||||
adds r0, r5, r0\n\
|
||||
ldr r0, [r0]\n\
|
||||
str r0, [sp]\n\
|
||||
mov r5, sp\n\
|
||||
str r5, [r7]\n\
|
||||
str r4, [r7, 0x4]\n\
|
||||
lsrs r0, r1, 2\n\
|
||||
movs r1, 0x85\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000DAA\n\
|
||||
_08000CF4:\n\
|
||||
mov r2, r12\n\
|
||||
ldrb r0, [r2]\n\
|
||||
lsls r0, 4\n\
|
||||
mov r5, r8\n\
|
||||
adds r5, 0xC\n\
|
||||
adds r0, r5\n\
|
||||
ldr r0, [r0]\n\
|
||||
str r0, [sp]\n\
|
||||
ldr r3, =0x040000D4 @REG_DMA3\n\
|
||||
mov r0, sp\n\
|
||||
str r0, [r3]\n\
|
||||
str r4, [r3, 0x4]\n\
|
||||
ldr r0, =0x85000400\n\
|
||||
str r0, [r3, 0x8]\n\
|
||||
ldr r0, [r3, 0x8]\n\
|
||||
adds r4, r6\n\
|
||||
subs r1, r6\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000CF4\n\
|
||||
ldrb r0, [r2]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r5\n\
|
||||
ldr r0, [r0]\n\
|
||||
str r0, [sp]\n\
|
||||
mov r2, sp\n\
|
||||
str r2, [r3]\n\
|
||||
str r4, [r3, 0x4]\n\
|
||||
lsrs r0, r1, 2\n\
|
||||
movs r1, 0x85\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000DEA\n\
|
||||
.pool\n\
|
||||
_08000D3C:\n\
|
||||
ldr r3, [r1]\n\
|
||||
mov r2, r10\n\
|
||||
adds r0, r5, r2\n\
|
||||
ldr r2, [r0]\n\
|
||||
ldrh r1, [r1, 0x8]\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000D56\n\
|
||||
str r3, [r7]\n\
|
||||
str r2, [r7, 0x4]\n\
|
||||
lsrs r0, r1, 1\n\
|
||||
movs r1, 0x80\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000DAA\n\
|
||||
_08000D56:\n\
|
||||
ldr r4, =0x040000D4 @REG_DMA3\n\
|
||||
str r3, [r4]\n\
|
||||
str r2, [r4, 0x4]\n\
|
||||
ldr r0, =0x80000800\n\
|
||||
str r0, [r4, 0x8]\n\
|
||||
ldr r0, [r4, 0x8]\n\
|
||||
adds r3, r6\n\
|
||||
adds r2, r6\n\
|
||||
subs r1, r6\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000D56\n\
|
||||
str r3, [r4]\n\
|
||||
str r2, [r4, 0x4]\n\
|
||||
lsrs r0, r1, 1\n\
|
||||
movs r1, 0x80\n\
|
||||
lsls r1, 24\n\
|
||||
_08000D76:\n\
|
||||
orrs r0, r1\n\
|
||||
str r0, [r4, 0x8]\n\
|
||||
ldr r0, [r4, 0x8]\n\
|
||||
b _08000DF0\n\
|
||||
.pool\n\
|
||||
_08000D88:\n\
|
||||
mov r3, r10\n\
|
||||
adds r0, r5, r3\n\
|
||||
ldr r2, [r0]\n\
|
||||
ldrh r4, [r1, 0x8]\n\
|
||||
add r1, sp, 0x4\n\
|
||||
cmp r4, r6\n\
|
||||
bhi _08000DB2\n\
|
||||
mov r0, r8\n\
|
||||
adds r0, 0xC\n\
|
||||
adds r0, r5, r0\n\
|
||||
ldr r0, [r0]\n\
|
||||
strh r0, [r1]\n\
|
||||
str r1, [r7]\n\
|
||||
str r2, [r7, 0x4]\n\
|
||||
lsrs r0, r4, 1\n\
|
||||
movs r1, 0x81\n\
|
||||
lsls r1, 24\n\
|
||||
_08000DAA:\n\
|
||||
orrs r0, r1\n\
|
||||
str r0, [r7, 0x8]\n\
|
||||
ldr r0, [r7, 0x8]\n\
|
||||
b _08000DF0\n\
|
||||
_08000DB2:\n\
|
||||
mov r5, r12\n\
|
||||
ldrb r0, [r5]\n\
|
||||
lsls r0, 4\n\
|
||||
ldr r3, =gDma3Requests + 0x0C\n\
|
||||
adds r0, r3\n\
|
||||
ldr r0, [r0]\n\
|
||||
strh r0, [r1]\n\
|
||||
ldr r3, =0x040000D4 @REG_DMA3\n\
|
||||
str r1, [r3]\n\
|
||||
str r2, [r3, 0x4]\n\
|
||||
ldr r0, =0x81000800\n\
|
||||
str r0, [r3, 0x8]\n\
|
||||
ldr r0, [r3, 0x8]\n\
|
||||
adds r2, r6\n\
|
||||
subs r4, r6\n\
|
||||
cmp r4, r6\n\
|
||||
bhi _08000DB2\n\
|
||||
ldrb r0, [r5]\n\
|
||||
lsls r0, 4\n\
|
||||
ldr r5, =gDma3Requests + 0x0C\n\
|
||||
adds r0, r5\n\
|
||||
ldr r0, [r0]\n\
|
||||
strh r0, [r1]\n\
|
||||
str r1, [r3]\n\
|
||||
str r2, [r3, 0x4]\n\
|
||||
lsrs r0, r4, 1\n\
|
||||
movs r1, 0x81\n\
|
||||
lsls r1, 24\n\
|
||||
_08000DEA:\n\
|
||||
orrs r0, r1\n\
|
||||
str r0, [r3, 0x8]\n\
|
||||
ldr r0, [r3, 0x8]\n\
|
||||
_08000DF0:\n\
|
||||
ldr r1, =gDma3Requests\n\
|
||||
mov r3, r12\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r1\n\
|
||||
mov r2, r9\n\
|
||||
str r2, [r0]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
add r0, r10\n\
|
||||
str r2, [r0]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r1\n\
|
||||
movs r4, 0\n\
|
||||
strh r2, [r0, 0x8]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r1\n\
|
||||
mov r5, r9\n\
|
||||
strh r5, [r0, 0xA]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r1, 0xC\n\
|
||||
adds r0, r1\n\
|
||||
mov r1, r9\n\
|
||||
str r1, [r0]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
adds r0, 0x1\n\
|
||||
strb r0, [r3]\n\
|
||||
lsls r0, 24\n\
|
||||
cmp r0, 0\n\
|
||||
bge _08000E34\n\
|
||||
strb r4, [r3]\n\
|
||||
_08000E34:\n\
|
||||
mov r2, r12\n\
|
||||
ldrb r0, [r2]\n\
|
||||
lsls r0, 4\n\
|
||||
ldr r3, =gDma3Requests\n\
|
||||
adds r0, r3\n\
|
||||
ldrh r0, [r0, 0x8]\n\
|
||||
cmp r0, 0\n\
|
||||
beq _08000E46\n\
|
||||
b _08000C2E\n\
|
||||
_08000E46:\n\
|
||||
add sp, 0xC\n\
|
||||
pop {r3-r5}\n\
|
||||
mov r8, r3\n\
|
||||
mov r9, r4\n\
|
||||
mov r10, r5\n\
|
||||
pop {r4-r7}\n\
|
||||
pop {r0}\n\
|
||||
bx r0\n\
|
||||
.pool\n\
|
||||
.syntax divided");
|
||||
}
|
||||
#endif
|
||||
|
||||
int RequestDma3Copy(const void *src, void *dest, u16 size, u8 mode)
|
||||
{
|
||||
int cursor;
|
||||
int var = 0;
|
||||
|
||||
gDma3ManagerLocked = 1;
|
||||
|
||||
cursor = gDma3RequestCursor;
|
||||
while(1)
|
||||
{
|
||||
if(!gDma3Requests[cursor].size) // an empty copy was found and the current cursor will be returned.
|
||||
{
|
||||
gDma3Requests[cursor].src = src;
|
||||
gDma3Requests[cursor].dest = dest;
|
||||
gDma3Requests[cursor].size = size;
|
||||
|
||||
if(mode == 1)
|
||||
gDma3Requests[cursor].mode = mode;
|
||||
else
|
||||
gDma3Requests[cursor].mode = 3;
|
||||
|
||||
gDma3ManagerLocked = FALSE;
|
||||
return (s16)cursor;
|
||||
}
|
||||
if(++cursor >= 0x80) // loop back to start.
|
||||
{
|
||||
cursor = 0;
|
||||
}
|
||||
if(++var >= 0x80) // max checks were made. all resulted in failure.
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
gDma3ManagerLocked = FALSE;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int RequestDma3Fill(s32 value, void *dest, u16 size, u8 mode)
|
||||
{
|
||||
int cursor;
|
||||
int var = 0;
|
||||
|
||||
cursor = gDma3RequestCursor;
|
||||
gDma3ManagerLocked = 1;
|
||||
|
||||
while(1)
|
||||
{
|
||||
if(!gDma3Requests[cursor].size)
|
||||
{
|
||||
gDma3Requests[cursor].dest = dest;
|
||||
gDma3Requests[cursor].size = size;
|
||||
gDma3Requests[cursor].mode = mode;
|
||||
gDma3Requests[cursor].value = value;
|
||||
|
||||
if(mode == 1)
|
||||
gDma3Requests[cursor].mode = 2;
|
||||
else
|
||||
gDma3Requests[cursor].mode = 4;
|
||||
|
||||
gDma3ManagerLocked = FALSE;
|
||||
return (s16)cursor;
|
||||
}
|
||||
if(++cursor >= 0x80) // loop back to start.
|
||||
{
|
||||
cursor = 0;
|
||||
}
|
||||
if(++var >= 0x80) // max checks were made. all resulted in failure.
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
gDma3ManagerLocked = FALSE;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int CheckForSpaceForDma3Request(s16 index)
|
||||
{
|
||||
int current = 0;
|
||||
|
||||
if (index == -1)
|
||||
{
|
||||
for (; current < 0x80; current ++)
|
||||
if (gDma3Requests[current].size)
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (gDma3Requests[index].size)
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
+3
-16
@@ -2,24 +2,11 @@
|
||||
|
||||
.space 0x4
|
||||
|
||||
gUnknown_30000C8: @ 30000C8
|
||||
.space 0xC
|
||||
.include "src/dma3_manager.o"
|
||||
|
||||
gUnknown_30000D4: @ 30000D4
|
||||
.space 0x1C
|
||||
|
||||
gUnknown_30000F0: @ 30000F0
|
||||
.space 0xA
|
||||
|
||||
gUnknown_30000FA: @ 30000FA
|
||||
.space 0x7CE
|
||||
|
||||
gUnknown_30008C8: @ 30008C8
|
||||
.space 0x1
|
||||
|
||||
gUnknown_30008C9: @ 30008C9
|
||||
.space 0x7
|
||||
.space 0x4
|
||||
|
||||
.align 2
|
||||
gUnknown_30008D0: @ 30008D0
|
||||
.space 0x18
|
||||
|
||||
|
||||
Reference in New Issue
Block a user