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-rw-r--r--src/m4a_1.s1935
1 files changed, 1935 insertions, 0 deletions
diff --git a/src/m4a_1.s b/src/m4a_1.s
new file mode 100644
index 000000000..7cb36580f
--- /dev/null
+++ b/src/m4a_1.s
@@ -0,0 +1,1935 @@
+ .include "asm/macros.inc"
+ .include "constants/gba_constants.inc"
+ .include "constants/m4a_constants.inc"
+
+ .syntax unified
+
+ .text
+
+ thumb_func_start umul3232H32
+umul3232H32:
+ adr r2, __umul3232H32
+ bx r2
+ .arm
+__umul3232H32:
+ umull r2, r3, r0, r1
+ add r0, r3, 0
+ bx lr
+ thumb_func_end umul3232H32
+
+ thumb_func_start SoundMain
+SoundMain:
+ ldr r0, lt_SOUND_INFO_PTR
+ ldr r0, [r0]
+ ldr r2, lt_ID_NUMBER
+ ldr r3, [r0, o_SoundInfo_ident]
+ cmp r2, r3
+ beq SoundMain_1
+ bx lr @ Exit the function if ident doesn't match ID_NUMBER.
+SoundMain_1:
+ adds r3, 1
+ str r3, [r0, o_SoundInfo_ident]
+ push {r4-r7,lr}
+ mov r1, r8
+ mov r2, r9
+ mov r3, r10
+ mov r4, r11
+ push {r0-r4}
+ sub sp, 0x18
+ ldrb r1, [r0, o_SoundInfo_maxLines]
+ cmp r1, 0 @ if maxLines is 0, there is no maximum
+ beq SoundMain_3
+ ldr r2, lt_REG_VCOUNT
+ ldrb r2, [r2]
+ cmp r2, VCOUNT_VBLANK
+ bhs SoundMain_2
+ adds r2, TOTAL_SCANLINES
+SoundMain_2:
+ adds r1, r2
+SoundMain_3:
+ str r1, [sp, 0x14]
+ ldr r3, [r0, o_SoundInfo_func]
+ cmp r3, 0
+ beq SoundMain_4
+ ldr r0, [r0, o_SoundInfo_intp]
+ bl _081DD25E
+ ldr r0, [sp, 0x18]
+SoundMain_4:
+ ldr r3, [r0, o_SoundInfo_CgbSound]
+ bl _081DD25E
+ ldr r0, [sp, 0x18]
+ ldr r3, [r0, o_SoundInfo_pcmSamplesPerVBlank]
+ mov r8, r3
+ ldr r5, lt_o_SoundInfo_pcmBuffer
+ adds r5, r0
+ ldrb r4, [r0, o_SoundInfo_pcmDmaCounter]
+ subs r7, r4, 1
+ bls SoundMain_5
+ ldrb r1, [r0, o_SoundInfo_pcmDmaPeriod]
+ subs r1, r7
+ mov r2, r8
+ muls r2, r1
+ adds r5, r2
+SoundMain_5:
+ str r5, [sp, 0x8]
+ ldr r6, lt_PCM_DMA_BUF_SIZE
+ ldr r3, lt_SoundMainRAM_Buffer
+ bx r3
+
+ .align 2, 0
+lt_SOUND_INFO_PTR: .word SOUND_INFO_PTR
+lt_ID_NUMBER: .word ID_NUMBER
+lt_SoundMainRAM_Buffer: .word SoundMainRAM_Buffer + 1
+lt_REG_VCOUNT: .word REG_VCOUNT
+lt_o_SoundInfo_pcmBuffer: .word o_SoundInfo_pcmBuffer
+lt_PCM_DMA_BUF_SIZE: .word PCM_DMA_BUF_SIZE
+ thumb_func_end SoundMain
+
+ thumb_func_start SoundMainRAM
+SoundMainRAM:
+ ldrb r3, [r0, o_SoundInfo_reverb]
+ cmp r3, 0
+ beq SoundMainRAM_NoReverb
+ adr r1, SoundMainRAM_Reverb
+ bx r1
+ .arm
+SoundMainRAM_Reverb:
+ cmp r4, 0x2
+ addeq r7, r0, o_SoundInfo_pcmBuffer
+ addne r7, r5, r8
+ mov r4, r8
+_081DCEC4:
+ ldrsb r0, [r5, r6]
+ ldrsb r1, [r5]
+ add r0, r0, r1
+ ldrsb r1, [r7, r6]
+ add r0, r0, r1
+ ldrsb r1, [r7], 0x1
+ add r0, r0, r1
+ mul r1, r0, r3
+ mov r0, r1, asr 9
+ tst r0, 0x80
+ addne r0, r0, 0x1
+ strb r0, [r5, r6]
+ strb r0, [r5], 0x1
+ subs r4, r4, 0x1
+ bgt _081DCEC4
+ adr r0, _081DCF36 + 1 @ plus 1 because THUMB
+ bx r0
+ .thumb
+SoundMainRAM_NoReverb:
+ movs r0, 0
+ mov r1, r8
+ adds r6, r5
+ lsrs r1, 3
+ bcc SoundMainRAM_NoReverb_Ok
+ stm r5!, {r0}
+ stm r6!, {r0}
+SoundMainRAM_NoReverb_Ok:
+ lsrs r1, 1
+ bcc SoundMainRAM_NoReverb_Loop
+ stm r5!, {r0}
+ stm r6!, {r0}
+ stm r5!, {r0}
+ stm r6!, {r0}
+SoundMainRAM_NoReverb_Loop:
+ stm r5!, {r0}
+ stm r6!, {r0}
+ stm r5!, {r0}
+ stm r6!, {r0}
+ stm r5!, {r0}
+ stm r6!, {r0}
+ stm r5!, {r0}
+ stm r6!, {r0}
+ subs r1, 1
+ bgt SoundMainRAM_NoReverb_Loop
+_081DCF36:
+ ldr r4, [sp, 0x18]
+ ldr r0, [r4, o_SoundInfo_divFreq]
+ mov r12, r0
+ ldrb r0, [r4, o_SoundInfo_maxChans]
+ adds r4, o_SoundInfo_chans
+
+SoundMainRAM_ChanLoop:
+ str r0, [sp, 0x4]
+ ldr r3, [r4, o_SoundChannel_wav]
+ ldr r0, [sp, 0x14]
+ cmp r0, 0
+ beq _081DCF60
+ ldr r1, =REG_VCOUNT
+ ldrb r1, [r1]
+ cmp r1, VCOUNT_VBLANK
+ bhs _081DCF54
+ adds r1, TOTAL_SCANLINES
+_081DCF54:
+ cmp r1, r0
+ blo _081DCF60
+ b _081DD24A
+
+ .pool
+
+_081DCF60:
+ ldrb r6, [r4, o_SoundChannel_status]
+ movs r0, 0xC7
+ tst r0, r6
+ bne _081DCF6A
+ b _081DD240
+_081DCF6A:
+ movs r0, 0x80
+ tst r0, r6
+ beq _081DCFA0
+ movs r0, 0x40
+ tst r0, r6
+ bne _081DCFB0
+ movs r6, 0x3
+ strb r6, [r4, o_SoundChannel_status]
+ adds r0, r3, 0
+ adds r0, 0x10
+ ldr r1, [r4, o_SoundChannel_ct]
+ adds r0, r1
+ str r0, [r4, o_SoundChannel_cp]
+ ldr r0, [r3, 0xC]
+ subs r0, r1
+ str r0, [r4, o_SoundChannel_ct]
+ movs r5, 0
+ strb r5, [r4, o_SoundChannel_ev]
+ str r5, [r4, o_SoundChannel_fw]
+ ldrb r2, [r3, 0x3]
+ movs r0, 0xC0
+ tst r0, r2
+ beq _081DCFF8
+ movs r0, 0x10
+ orrs r6, r0
+ strb r6, [r4, o_SoundChannel_status]
+ b _081DCFF8
+_081DCFA0:
+ ldrb r5, [r4, o_SoundChannel_ev]
+ movs r0, 0x4
+ tst r0, r6
+ beq _081DCFB6
+ ldrb r0, [r4, o_SoundChannel_iel]
+ subs r0, 1
+ strb r0, [r4, o_SoundChannel_iel]
+ bhi _081DD006
+_081DCFB0:
+ movs r0, 0
+ strb r0, [r4, o_SoundChannel_status]
+ b _081DD240
+_081DCFB6:
+ movs r0, 0x40
+ tst r0, r6
+ beq _081DCFD6
+ ldrb r0, [r4, o_SoundChannel_release]
+ muls r5, r0
+ lsrs r5, 8
+ ldrb r0, [r4, o_SoundChannel_iev]
+ cmp r5, r0
+ bhi _081DD006
+_081DCFC8:
+ ldrb r5, [r4, o_SoundChannel_iev]
+ cmp r5, 0
+ beq _081DCFB0
+ movs r0, 0x4
+ orrs r6, r0
+ strb r6, [r4, o_SoundChannel_status]
+ b _081DD006
+_081DCFD6:
+ movs r2, 0x3
+ ands r2, r6
+ cmp r2, 0x2
+ bne _081DCFF4
+ ldrb r0, [r4, o_SoundChannel_decay]
+ muls r5, r0
+ lsrs r5, 8
+ ldrb r0, [r4, o_SoundChannel_sustain]
+ cmp r5, r0
+ bhi _081DD006
+ adds r5, r0, 0
+ beq _081DCFC8
+ subs r6, 0x1
+ strb r6, [r4, o_SoundChannel_status]
+ b _081DD006
+_081DCFF4:
+ cmp r2, 0x3
+ bne _081DD006
+_081DCFF8:
+ ldrb r0, [r4, o_SoundChannel_attack]
+ adds r5, r0
+ cmp r5, 0xFF
+ bcc _081DD006
+ movs r5, 0xFF
+ subs r6, 0x1
+ strb r6, [r4, o_SoundChannel_status]
+_081DD006:
+ strb r5, [r4, o_SoundChannel_ev]
+ ldr r0, [sp, 0x18]
+ ldrb r0, [r0, o_SoundChannel_release]
+ adds r0, 0x1
+ muls r0, r5
+ lsrs r5, r0, 4
+ ldrb r0, [r4, o_SoundChannel_rightVolume]
+ muls r0, r5
+ lsrs r0, 8
+ strb r0, [r4, o_SoundChannel_er]
+ ldrb r0, [r4, o_SoundChannel_leftVolume]
+ muls r0, r5
+ lsrs r0, 8
+ strb r0, [r4, o_SoundChannel_el]
+ movs r0, 0x10
+ ands r0, r6
+ str r0, [sp, 0x10]
+ beq _081DD03A
+ adds r0, r3, 0
+ adds r0, 0x10
+ ldr r1, [r3, 0x8]
+ adds r0, r1
+ str r0, [sp, 0xC]
+ ldr r0, [r3, 0xC]
+ subs r0, r1
+ str r0, [sp, 0x10]
+_081DD03A:
+ ldr r5, [sp, 0x8]
+ ldr r2, [r4, o_SoundChannel_ct]
+ ldr r3, [r4, o_SoundChannel_cp]
+ adr r0, _081DD044
+ bx r0
+ .arm
+_081DD044:
+ str r8, [sp]
+ ldr r9, [r4, o_SoundChannel_fw]
+ ldrb r10, [r4, o_SoundChannel_er]
+ ldrb r11, [r4, o_SoundChannel_el]
+ ldrb r0, [r4, o_SoundChannel_type]
+ tst r0, 0x30
+ beq _081DD068
+ bl sub_81DC460
+ b _081DD228
+_081DD068:
+ mov r10, r10, lsl 16
+ mov r11, r11, lsl 16
+ ldrb r0, [r4, o_SoundChannel_type]
+ tst r0, 0x8
+ beq _081DD19C
+_081DD07C:
+ cmp r2, 0x4
+ ble _081DD0EC
+ subs r2, r2, r8
+ movgt r9, 0
+ bgt _081DD0A8
+ mov r9, r8
+ add r2, r2, r8
+ sub r8, r2, 0x4
+ sub r9, r9, r8
+ ands r2, r2, 0x3
+ moveq r2, 0x4
+_081DD0A8:
+ ldr r6, [r5]
+ ldr r7, [r5, 0x630]
+_081DD0B0:
+ ldrsb r0, [r3], 0x1
+ mul r1, r10, r0
+ bic r1, r1, 0xFF0000
+ add r6, r1, r6, ror 8
+ mul r1, r11, r0
+ bic r1, r1, 0xFF0000
+ add r7, r1, r7, ror 8
+ adds r5, r5, 0x40000000
+ bcc _081DD0B0
+ str r7, [r5, 0x630]
+ str r6, [r5], 0x4
+ subs r8, r8, 0x4
+ bgt _081DD0A8
+ adds r8, r8, r9
+ beq _081DD22C
+_081DD0EC:
+ ldr r6, [r5]
+ ldr r7, [r5, 0x630]
+_081DD0F4:
+ ldrsb r0, [r3], 0x1
+ mul r1, r10, r0
+ bic r1, r1, 0xFF0000
+ add r6, r1, r6, ror 8
+ mul r1, r11, r0
+ bic r1, r1, 0xFF0000
+ add r7, r1, r7, ror 8
+ subs r2, r2, 0x1
+ beq _081DD164
+_081DD118:
+ adds r5, r5, 0x40000000
+ bcc _081DD0F4
+ str r7, [r5, 0x630]
+ str r6, [r5], 0x4
+ subs r8, r8, 0x4
+ bgt _081DD07C
+ b _081DD22C
+_081DD134:
+ ldr r0, [sp, 0x18]
+ cmp r0, 0
+ beq _081DD158
+ ldr r3, [sp, 0x14]
+ rsb lr, r2, 0
+_081DD148:
+ adds r2, r0, r2
+ bgt _081DD1FC
+ sub lr, lr, r0
+ b _081DD148
+_081DD158:
+ pop {r4,r12}
+ mov r2, 0
+ b _081DD174
+_081DD164:
+ ldr r2, [sp, 0x10]
+ cmp r2, 0
+ ldrne r3, [sp, 0xC]
+ bne _081DD118
+_081DD174:
+ strb r2, [r4, o_SoundChannel_status]
+ mov r0, r5, lsr 30
+ bic r5, r5, 0xC0000000
+ rsb r0, r0, 0x3
+ mov r0, r0, lsl 3
+ mov r6, r6, ror r0
+ mov r7, r7, ror r0
+ str r7, [r5, 0x630]
+ str r6, [r5], 0x4
+ b _081DD234
+_081DD19C:
+ push {r4,r12}
+ ldr r1, [r4, o_SoundChannel_freq]
+ mul r4, r12, r1
+ ldrsb r0, [r3]
+ ldrsb r1, [r3, 0x1]!
+ sub r1, r1, r0
+_081DD1B4:
+ ldr r6, [r5]
+ ldr r7, [r5, 0x630]
+_081DD1BC:
+ mul lr, r9, r1
+ add lr, r0, lr, asr 23
+ mul r12, r10, lr
+ bic r12, r12, 0xFF0000
+ add r6, r12, r6, ror 8
+ mul r12, r11, lr
+ bic r12, r12, 0xFF0000
+ add r7, r12, r7, ror 8
+ add r9, r9, r4
+ movs lr, r9, lsr 23
+ beq _081DD208
+ bic r9, r9, 0x3F800000
+ subs r2, r2, lr
+ ble _081DD134
+ subs lr, lr, 0x1
+ addeq r0, r0, r1
+_081DD1FC:
+ ldrsbne r0, [r3, lr]!
+ ldrsb r1, [r3, 0x1]!
+ sub r1, r1, r0
+_081DD208:
+ adds r5, r5, 0x40000000
+ bcc _081DD1BC
+ str r7, [r5, 0x630]
+ str r6, [r5], 0x4
+ subs r8, r8, 0x4
+ bgt _081DD1B4
+ sub r3, r3, 0x1
+ pop {r4,r12}
+_081DD228:
+ str r9, [r4, o_SoundChannel_fw]
+_081DD22C:
+ str r2, [r4, o_SoundChannel_ct]
+ str r3, [r4, o_SoundChannel_cp]
+_081DD234:
+ ldr r8, [sp]
+ add r0, pc, 0x1
+ bx r0
+ .thumb
+_081DD240:
+ ldr r0, [sp, 0x4]
+ subs r0, 1
+ ble _081DD24A
+ adds r4, SoundChannel_size
+ b SoundMainRAM_ChanLoop
+_081DD24A:
+ ldr r0, [sp, 0x18]
+ ldr r3, =ID_NUMBER
+ str r3, [r0]
+ add sp, 0x1C
+ pop {r0-r7}
+ mov r8, r0
+ mov r9, r1
+ mov r10, r2
+ mov r11, r3
+ pop {r3}
+_081DD25E:
+ bx r3
+ .pool
+ thumb_func_end SoundMainRAM
+
+ arm_func_start sub_81DC460
+sub_81DC460:
+ ldr r6, [r4, o_SoundChannel_wav]
+ ldrb r0, [r4, o_SoundChannel_status]
+ tst r0, 0x20
+ bne _081DD2B4
+ orr r0, r0, 0x20
+ strb r0, [r4, o_SoundChannel_status]
+ ldrb r0, [r4, o_SoundChannel_type]
+ tst r0, 0x10
+ beq _081DD29C
+ ldr r1, [r6, 0xC]
+ add r1, r1, r6, lsl 1
+ add r1, r1, 0x20
+ sub r3, r1, r3
+ str r3, [r4, o_SoundChannel_cp]
+_081DD29C:
+ ldrh r0, [r6]
+ cmp r0, 0
+ beq _081DD2B4
+ sub r3, r3, r6
+ sub r3, r3, 0x10
+ str r3, [r4, o_SoundChannel_cp]
+_081DD2B4:
+ push {r8,r12,lr}
+ mov r10, r10, lsl 16
+ mov r11, r11, lsl 16
+ ldr r1, [r4, o_SoundChannel_freq]
+ ldrb r0, [r4, o_SoundChannel_type]
+ tst r0, 0x8
+ movne r8, 0x800000
+ muleq r8, r12, r1
+ ldrh r0, [r6]
+ cmp r0, 0
+ beq _081DD468
+ mov r0, 0xFF000000
+ str r0, [r4, o_SoundChannel_xpi]
+ ldrb r0, [r4, o_SoundChannel_type]
+ tst r0, 0x10
+ bne _081DD3C0
+ bl sub_81DC71C
+ mov r0, r1
+ add r3, r3, 0x1
+ bl sub_81DC71C
+ sub r1, r1, r0
+_081DD308:
+ ldr r6, [r5]
+ ldr r7, [r5, 0x630]
+_081DD310:
+ mul lr, r9, r1
+ add lr, r0, lr, asr 23
+ mul r12, r10, lr
+ bic r12, r12, 0xFF0000
+ add r6, r12, r6, ror 8
+ mul r12, r11, lr
+ bic r12, r12, 0xFF0000
+ add r7, r12, r7, ror 8
+ add r9, r9, r8
+ movs lr, r9, lsr 23
+ beq _081DD370
+ bic r9, r9, 0x3F800000
+ subs r2, r2, lr
+ ble _081DD398
+ subs lr, lr, 0x1
+ bne _081DD358
+ add r0, r0, r1
+ b _081DD364
+_081DD358:
+ add r3, r3, lr
+ bl sub_81DC71C
+ mov r0, r1
+_081DD364:
+ add r3, r3, 0x1
+ bl sub_81DC71C
+ sub r1, r1, r0
+_081DD370:
+ adds r5, r5, 0x40000000
+ bcc _081DD310
+ str r7, [r5, 0x630]
+ str r6, [r5], 0x4
+ ldr r6, [sp]
+ subs r6, r6, 0x4
+ str r6, [sp]
+ bgt _081DD308
+ sub r3, r3, 0x1
+ b _081DD4F0
+_081DD398:
+ ldr r0, [sp, 0x1C]
+ cmp r0, 0
+ beq _081DD4F4
+ ldr r3, [r4, o_SoundChannel_wav]
+ ldr r3, [r3, 0x8]
+ rsb lr, r2, 0
+_081DD3B0:
+ adds r2, r2, r0
+ bgt _081DD358
+ sub lr, lr, r0
+ b _081DD3B0
+_081DD3C0:
+ sub r3, r3, 0x1
+ bl sub_81DC71C
+ mov r0, r1
+ sub r3, r3, 0x1
+ bl sub_81DC71C
+ sub r1, r1, r0
+_081DD3D8:
+ ldr r6, [r5]
+ ldr r7, [r5, 0x630]
+_081DD3E0:
+ mul lr, r9, r1
+ add lr, r0, lr, asr 23
+ mul r12, r10, lr
+ bic r12, r12, 0xFF0000
+ add r6, r12, r6, ror 8
+ mul r12, r11, lr
+ bic r12, r12, 0xFF0000
+ add r7, r12, r7, ror 8
+ add r9, r9, r8
+ movs lr, r9, lsr 23
+ beq _081DD440
+ bic r9, r9, 0x3F800000
+ subs r2, r2, lr
+ ble _081DD4F4
+ subs lr, lr, 0x1
+ bne _081DD428
+ add r0, r0, r1
+ b _081DD434
+_081DD428:
+ sub r3, r3, lr
+ bl sub_81DC71C
+ mov r0, r1
+_081DD434:
+ sub r3, r3, 0x1
+ bl sub_81DC71C
+ sub r1, r1, r0
+_081DD440:
+ adds r5, r5, 0x40000000
+ bcc _081DD3E0
+ str r7, [r5, 0x630]
+ str r6, [r5], 0x4
+ ldr r6, [sp]
+ subs r6, r6, 0x4
+ str r6, [sp]
+ bgt _081DD3D8
+ add r3, r3, 0x2
+ b _081DD4F0
+_081DD468:
+ ldrb r0, [r4, o_SoundChannel_type]
+ tst r0, 0x10
+ beq _081DD4F0
+ ldrsb r0, [r3, -0x1]!
+ ldrsb r1, [r3, -0x1]
+ sub r1, r1, r0
+_081DD480:
+ ldr r6, [r5]
+ ldr r7, [r5, 0x630]
+_081DD488:
+ mul lr, r9, r1
+ add lr, r0, lr, asr 23
+ mul r12, r10, lr
+ bic r12, r12, 0xFF0000
+ add r6, r12, r6, ror 8
+ mul r12, r11, lr
+ bic r12, r12, 0xFF0000
+ add r7, r12, r7, ror 8
+ add r9, r9, r8
+ movs lr, r9, lsr 23
+ beq _081DD4CC
+ bic r9, r9, 0x3F800000
+ subs r2, r2, lr
+ ble _081DD4F4
+ ldrsb r0, [r3, -lr]!
+ ldrsb r1, [r3, -0x1]
+ sub r1, r1, r0
+_081DD4CC:
+ adds r5, r5, 0x40000000
+ bcc _081DD488
+ str r7, [r5, 0x630]
+ str r6, [r5], 0x4
+ ldr r6, [sp]
+ subs r6, r6, 0x4
+ str r6, [sp]
+ bgt _081DD480
+ add r3, r3, 0x1
+_081DD4F0:
+ pop {r8,r12,pc}
+_081DD4F4:
+ mov r2, 0
+ strb r2, [r4, o_SoundChannel_status]
+ mov r0, r5, lsr 30
+ bic r5, r5, 0xC0000000
+ rsb r0, r0, 0x3
+ mov r0, r0, lsl 3
+ mov r6, r6, ror r0
+ mov r7, r7, ror r0
+ str r7, [r5, 0x630]
+ str r6, [r5], 0x4
+ pop {r8,r12,pc}
+ arm_func_end sub_81DC460
+
+ arm_func_start sub_81DC71C
+sub_81DC71C:
+ push {r0,r2,r5-r7,lr}
+ mov r0, r3, lsr 6
+ ldr r1, [r4, o_SoundChannel_xpi]
+ cmp r0, r1
+ beq _081DD594
+ str r0, [r4, o_SoundChannel_xpi]
+ mov r1, 0x21
+ mul r2, r1, r0
+ ldr r1, [r4, o_SoundChannel_wav]
+ add r2, r2, r1
+ add r2, r2, 0x10
+ ldr r5, =gUnknown_030007B8
+ ldr r6, =gDeltaEncodingTable
+ mov r7, 0x40
+ ldrb lr, [r2], 1
+ strb lr, [r5], 1
+ ldrb r1, [r2], 1
+ b _081DD57C
+_081DD568:
+ ldrb r1, [r2], 1
+ mov r0, r1, lsr 4
+ ldrsb r0, [r6, r0]
+ add lr, lr, r0
+ strb lr, [r5], 1
+_081DD57C:
+ and r0, r1, 0xF
+ ldrsb r0, [r6, r0]
+ add lr, lr, r0
+ strb lr, [r5], 1
+ subs r7, r7, 2
+ bgt _081DD568
+_081DD594:
+ ldr r5, =gUnknown_030007B8
+ and r0, r3, 0x3F
+ ldrsb r1, [r5, r0]
+ pop {r0,r2,r5-r7,pc}
+ .pool
+ arm_func_end sub_81DC71C
+
+ thumb_func_start SoundMainBTM
+SoundMainBTM:
+ mov r12, r4
+ movs r1, 0
+ movs r2, 0
+ movs r3, 0
+ movs r4, 0
+ stm r0!, {r1-r4}
+ stm r0!, {r1-r4}
+ stm r0!, {r1-r4}
+ stm r0!, {r1-r4}
+ mov r4, r12
+ bx lr
+ thumb_func_end SoundMainBTM
+
+ thumb_func_start RealClearChain
+RealClearChain:
+ ldr r3, [r0, 0x2C]
+ cmp r3, 0
+ beq _081DD5E2
+ ldr r1, [r0, 0x34]
+ ldr r2, [r0, 0x30]
+ cmp r2, 0
+ beq _081DD5D6
+ str r1, [r2, 0x34]
+ b _081DD5D8
+_081DD5D6:
+ str r1, [r3, 0x20]
+_081DD5D8:
+ cmp r1, 0
+ beq _081DD5DE
+ str r2, [r1, 0x30]
+_081DD5DE:
+ movs r1, 0
+ str r1, [r0, 0x2C]
+_081DD5E2:
+ bx lr
+ thumb_func_end RealClearChain
+
+ thumb_func_start ply_fine
+ply_fine:
+ push {r4,r5,lr}
+ adds r5, r1, 0
+ ldr r4, [r5, o_MusicPlayerTrack_chan]
+ cmp r4, 0
+ beq ply_fine_done
+ply_fine_loop:
+ ldrb r1, [r4]
+ movs r0, 0xC7
+ tst r0, r1
+ beq ply_fine_ok
+ movs r0, 0x40
+ orrs r1, r0
+ strb r1, [r4]
+ply_fine_ok:
+ adds r0, r4, 0
+ bl RealClearChain
+ ldr r4, [r4, 0x34]
+ cmp r4, 0
+ bne ply_fine_loop
+ply_fine_done:
+ movs r0, 0
+ strb r0, [r5]
+ pop {r4,r5}
+ pop {r0}
+ bx r0
+ thumb_func_end ply_fine
+
+ thumb_func_start MPlayJumpTableCopy
+MPlayJumpTableCopy:
+ mov r12, lr
+ movs r1, 0x24
+ ldr r2, lt_MPlayJumpTableTemplate
+MPlayJumpTableCopy_Loop:
+ ldr r3, [r2]
+ bl chk_adr_r2
+ stm r0!, {r3}
+ adds r2, 0x4
+ subs r1, 0x1
+ bgt MPlayJumpTableCopy_Loop
+ bx r12
+ thumb_func_end MPlayJumpTableCopy
+
+ .align 2, 0
+ .thumb_func
+ldrb_r3_r2:
+ ldrb r3, [r2]
+
+@ This attempts to protect against reading anything from the BIOS ROM
+@ besides the jump table template.
+@ It assumes that the jump table template is located at the end of the ROM.
+ .thumb_func
+chk_adr_r2:
+ push {r0}
+ lsrs r0, r2, 25
+ bne chk_adr_r2_done @ if adr >= 0x2000000 (i.e. not in BIOS ROM), accept it
+ ldr r0, lt_MPlayJumpTableTemplate
+ cmp r2, r0
+ blo chk_adr_r2_reject @ if adr < gMPlayJumpTableTemplate, reject it
+ lsrs r0, r2, 14
+ beq chk_adr_r2_done @ if adr < 0x40000 (i.e. in BIOS ROM), accept it
+chk_adr_r2_reject:
+ movs r3, 0
+chk_adr_r2_done:
+ pop {r0}
+ bx lr
+
+ .align 2, 0
+lt_MPlayJumpTableTemplate: .word gMPlayJumpTableTemplate
+
+ thumb_func_start ld_r3_tp_adr_i
+ld_r3_tp_adr_i:
+ ldr r2, [r1, 0x40]
+_081DD64A:
+ adds r3, r2, 0x1
+ str r3, [r1, 0x40]
+ ldrb r3, [r2]
+ b chk_adr_r2
+ thumb_func_end ld_r3_tp_adr_i
+
+ thumb_func_start ply_goto
+ply_goto:
+ push {lr}
+ply_goto_1:
+ ldr r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ ldrb r0, [r2, 0x3]
+ lsls r0, 8
+ ldrb r3, [r2, 0x2]
+ orrs r0, r3
+ lsls r0, 8
+ ldrb r3, [r2, 0x1]
+ orrs r0, r3
+ lsls r0, 8
+ bl ldrb_r3_r2
+ orrs r0, r3
+ str r0, [r1, o_MusicPlayerTrack_cmdPtr]
+ pop {r0}
+ bx r0
+ thumb_func_end ply_goto
+
+ thumb_func_start ply_patt
+ply_patt:
+ ldrb r2, [r1, o_MusicPlayerTrack_patternLevel]
+ cmp r2, 3
+ bhs ply_patt_done
+ lsls r2, 2
+ adds r3, r1, r2
+ ldr r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ adds r2, 0x4
+ str r2, [r3, o_MusicPlayerTrack_patternStack]
+ ldrb r2, [r1, o_MusicPlayerTrack_patternLevel]
+ adds r2, 1
+ strb r2, [r1, o_MusicPlayerTrack_patternLevel]
+ b ply_goto
+ply_patt_done:
+ b ply_fine
+ thumb_func_end ply_patt
+
+ thumb_func_start ply_pend
+ply_pend:
+ ldrb r2, [r1, o_MusicPlayerTrack_patternLevel]
+ cmp r2, 0
+ beq ply_pend_done
+ subs r2, 1
+ strb r2, [r1, o_MusicPlayerTrack_patternLevel]
+ lsls r2, 2
+ adds r3, r1, r2
+ ldr r2, [r3, o_MusicPlayerTrack_patternStack]
+ str r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ply_pend_done:
+ bx lr
+ thumb_func_end ply_pend
+
+ thumb_func_start ply_rept
+ply_rept:
+ push {lr}
+ ldr r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ ldrb r3, [r2]
+ cmp r3, 0
+ bne ply_rept_1
+ adds r2, 1
+ str r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ b ply_goto_1
+ply_rept_1:
+ ldrb r3, [r1, o_MusicPlayerTrack_repN]
+ adds r3, 1
+ strb r3, [r1, o_MusicPlayerTrack_repN]
+ mov r12, r3
+ bl ld_r3_tp_adr_i
+ cmp r12, r3
+ bhs ply_rept_2
+ b ply_goto_1
+ply_rept_2:
+ movs r3, 0
+ strb r3, [r1, o_MusicPlayerTrack_repN]
+ adds r2, 5
+ str r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ pop {r0}
+ bx r0
+ thumb_func_end ply_rept
+
+ thumb_func_start ply_prio
+ply_prio:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ strb r3, [r1, o_MusicPlayerTrack_priority]
+ bx r12
+ thumb_func_end ply_prio
+
+ thumb_func_start ply_tempo
+ply_tempo:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ lsls r3, 1
+ strh r3, [r0, o_MusicPlayerInfo_tempoD]
+ ldrh r2, [r0, o_MusicPlayerInfo_tempoU]
+ muls r3, r2
+ lsrs r3, 8
+ strh r3, [r0, o_MusicPlayerInfo_tempoI]
+ bx r12
+ thumb_func_end ply_tempo
+
+ thumb_func_start ply_keysh
+ply_keysh:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ strb r3, [r1, o_MusicPlayerTrack_keyShift]
+ ldrb r3, [r1, o_MusicPlayerTrack_flags]
+ movs r2, 0xC
+ orrs r3, r2
+ strb r3, [r1, o_MusicPlayerTrack_flags]
+ bx r12
+ thumb_func_end ply_keysh
+
+ thumb_func_start ply_voice
+ply_voice:
+ mov r12, lr
+ ldr r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ ldrb r3, [r2]
+ adds r2, 1
+ str r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ lsls r2, r3, 1
+ adds r2, r3
+ lsls r2, 2
+ ldr r3, [r0, o_MusicPlayerInfo_tone]
+ adds r2, r3
+ ldr r3, [r2]
+ bl chk_adr_r2
+ str r3, [r1, o_MusicPlayerTrack_ToneData_type]
+ ldr r3, [r2, 0x4]
+ bl chk_adr_r2
+ str r3, [r1, o_MusicPlayerTrack_ToneData_wav]
+ ldr r3, [r2, 0x8]
+ bl chk_adr_r2
+ str r3, [r1, o_MusicPlayerTrack_ToneData_attack]
+ bx r12
+ thumb_func_end ply_voice
+
+ thumb_func_start ply_vol
+ply_vol:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ strb r3, [r1, o_MusicPlayerTrack_vol]
+ ldrb r3, [r1, o_MusicPlayerTrack_flags]
+ movs r2, 0x3
+ orrs r3, r2
+ strb r3, [r1, o_MusicPlayerTrack_flags]
+ bx r12
+ thumb_func_end ply_vol
+
+ thumb_func_start ply_pan
+ply_pan:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ subs r3, 0x40
+ strb r3, [r1, o_MusicPlayerTrack_pan]
+ ldrb r3, [r1, o_MusicPlayerTrack_flags]
+ movs r2, 0x3
+ orrs r3, r2
+ strb r3, [r1, o_MusicPlayerTrack_flags]
+ bx r12
+ thumb_func_end ply_pan
+
+ thumb_func_start ply_bend
+ply_bend:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ subs r3, 0x40
+ strb r3, [r1, o_MusicPlayerTrack_bend]
+ ldrb r3, [r1, o_MusicPlayerTrack_flags]
+ movs r2, 0xC
+ orrs r3, r2
+ strb r3, [r1, o_MusicPlayerTrack_flags]
+ bx r12
+ thumb_func_end ply_bend
+
+ thumb_func_start ply_bendr
+ply_bendr:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ strb r3, [r1, o_MusicPlayerTrack_bendRange]
+ ldrb r3, [r1, o_MusicPlayerTrack_flags]
+ movs r2, 0xC
+ orrs r3, r2
+ strb r3, [r1, o_MusicPlayerTrack_flags]
+ bx r12
+ thumb_func_end ply_bendr
+
+ thumb_func_start ply_lfodl
+ply_lfodl:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ strb r3, [r1, o_MusicPlayerTrack_lfoDelay]
+ bx r12
+ thumb_func_end ply_lfodl
+
+ thumb_func_start ply_modt
+ply_modt:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ ldrb r0, [r1, o_MusicPlayerTrack_modT]
+ cmp r0, r3
+ beq _081DD7AA
+ strb r3, [r1, o_MusicPlayerTrack_modT]
+ ldrb r3, [r1, o_MusicPlayerTrack_flags]
+ movs r2, 0xF
+ orrs r3, r2
+ strb r3, [r1, o_MusicPlayerTrack_flags]
+_081DD7AA:
+ bx r12
+ thumb_func_end ply_modt
+
+ thumb_func_start ply_tune
+ply_tune:
+ mov r12, lr
+ bl ld_r3_tp_adr_i
+ subs r3, 0x40
+ strb r3, [r1, o_MusicPlayerTrack_tune]
+ ldrb r3, [r1, o_MusicPlayerTrack_flags]
+ movs r2, 0xC
+ orrs r3, r2
+ strb r3, [r1, o_MusicPlayerTrack_flags]
+ bx r12
+ thumb_func_end ply_tune
+
+ thumb_func_start ply_port
+ply_port:
+ mov r12, lr
+ ldr r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ ldrb r3, [r2]
+ adds r2, 1
+ ldr r0, =REG_SOUND1CNT_L @ sound register base address
+ adds r0, r3
+ bl _081DD64A
+ strb r3, [r0]
+ bx r12
+ .pool
+ thumb_func_end ply_port
+
+ thumb_func_start m4aSoundVSync
+m4aSoundVSync:
+ ldr r0, lt2_SOUND_INFO_PTR
+ ldr r0, [r0]
+
+ @ Exit the function if ident is not ID_NUMBER or ID_NUMBER+1.
+ ldr r2, lt2_ID_NUMBER
+ ldr r3, [r0, o_SoundInfo_ident]
+ subs r3, r2
+ cmp r3, 1
+ bhi m4aSoundVSync_Done
+
+ @ Decrement the PCM DMA counter. If it reaches 0, we need to do a DMA.
+ ldrb r1, [r0, o_SoundInfo_pcmDmaCounter]
+ subs r1, 1
+ strb r1, [r0, o_SoundInfo_pcmDmaCounter]
+ bgt m4aSoundVSync_Done
+
+ @ Reload the PCM DMA counter.
+ ldrb r1, [r0, o_SoundInfo_pcmDmaPeriod]
+ strb r1, [r0, o_SoundInfo_pcmDmaCounter]
+
+ ldr r2, =REG_DMA1
+
+ ldr r1, [r2, 0x8] @ DMA1CNT
+ lsls r1, 7
+ bcc m4aSoundVSync_SkipDMA1 @ branch if repeat bit isn't set
+
+ ldr r1, =((DMA_ENABLE | DMA_START_NOW | DMA_32BIT | DMA_SRC_INC | DMA_DEST_FIXED) << 16) | 4
+ str r1, [r2, 0x8] @ DMA1CNT
+
+m4aSoundVSync_SkipDMA1:
+ ldr r1, [r2, 0xC + 0x8] @ DMA2CNT
+ lsls r1, 7
+ bcc m4aSoundVSync_SkipDMA2 @ branch if repeat bit isn't set
+
+ ldr r1, =((DMA_ENABLE | DMA_START_NOW | DMA_32BIT | DMA_SRC_INC | DMA_DEST_FIXED) << 16) | 4
+ str r1, [r2, 0xC + 0x8] @ DMA2CNT
+
+m4aSoundVSync_SkipDMA2:
+
+ @ turn off DMA1/DMA2
+ movs r1, DMA_32BIT >> 8
+ lsls r1, 8
+ strh r1, [r2, 0xA] @ DMA1CNT_H
+ strh r1, [r2, 0xC + 0xA] @ DMA2CNT_H
+
+ @ turn on DMA1/DMA2 direct-sound FIFO mode
+ movs r1, (DMA_ENABLE | DMA_START_SPECIAL | DMA_32BIT | DMA_REPEAT) >> 8
+ lsls r1, 8 @ LSB is 0, so DMA_SRC_INC is used (destination is always fixed in FIFO mode)
+ strh r1, [r2, 0xA] @ DMA1CNT_H
+ strh r1, [r2, 0xC + 0xA] @ DMA2CNT_H
+
+m4aSoundVSync_Done:
+ bx lr
+
+ .pool
+ thumb_func_end m4aSoundVSync
+
+ thumb_func_start MPlayMain
+MPlayMain:
+ ldr r2, lt2_ID_NUMBER
+ ldr r3, [r0, o_MusicPlayerInfo_ident]
+ cmp r2, r3
+ beq _081DD82E
+ bx lr
+_081DD82E:
+ adds r3, 0x1
+ str r3, [r0, o_MusicPlayerInfo_ident]
+ push {r0,lr}
+ ldr r3, [r0, o_MusicPlayerInfo_func]
+ cmp r3, 0
+ beq _081DD840
+ ldr r0, [r0, o_MusicPlayerInfo_intp]
+ bl call_r3
+_081DD840:
+ pop {r0}
+ push {r4-r7}
+ mov r4, r8
+ mov r5, r9
+ mov r6, r10
+ mov r7, r11
+ push {r4-r7}
+ adds r7, r0, 0
+ ldr r0, [r7, o_MusicPlayerInfo_status]
+ cmp r0, 0
+ bge _081DD858
+ b _081DDA6C
+_081DD858:
+ ldr r0, lt2_SOUND_INFO_PTR
+ ldr r0, [r0]
+ mov r8, r0
+ adds r0, r7, 0
+ bl FadeOutBody
+ ldr r0, [r7, o_MusicPlayerInfo_status]
+ cmp r0, 0
+ bge _081DD86C
+ b _081DDA6C
+_081DD86C:
+ ldrh r0, [r7, o_MusicPlayerInfo_tempoC]
+ ldrh r1, [r7, o_MusicPlayerInfo_tempoI]
+ adds r0, r1
+ b _081DD9BC
+_081DD874:
+ ldrb r6, [r7, o_MusicPlayerInfo_trackCount]
+ ldr r5, [r7, o_MusicPlayerInfo_tracks]
+ movs r3, 0x1
+ movs r4, 0
+_081DD87C:
+ ldrb r0, [r5]
+ movs r1, 0x80
+ tst r1, r0
+ bne _081DD886
+ b _081DD998
+_081DD886:
+ mov r10, r3
+ orrs r4, r3
+ mov r11, r4
+ ldr r4, [r5, o_MusicPlayerTrack_chan]
+ cmp r4, 0
+ beq _081DD8BA
+_081DD892:
+ ldrb r1, [r4]
+ movs r0, 0xC7
+ tst r0, r1
+ beq _081DD8AE
+ ldrb r0, [r4, 0x10]
+ cmp r0, 0
+ beq _081DD8B4
+ subs r0, 0x1
+ strb r0, [r4, 0x10]
+ bne _081DD8B4
+ movs r0, 0x40
+ orrs r1, r0
+ strb r1, [r4]
+ b _081DD8B4
+_081DD8AE:
+ adds r0, r4, 0
+ bl ClearChain
+_081DD8B4:
+ ldr r4, [r4, 0x34]
+ cmp r4, 0
+ bne _081DD892
+_081DD8BA:
+ ldrb r3, [r5, o_MusicPlayerTrack_flags]
+ movs r0, 0x40
+ tst r0, r3
+ beq _081DD938
+ adds r0, r5, 0
+ bl Clear64byte
+ movs r0, 0x80
+ strb r0, [r5]
+ movs r0, 0x2
+ strb r0, [r5, o_MusicPlayerTrack_bendRange]
+ movs r0, 0x40
+ strb r0, [r5, o_MusicPlayerTrack_volX]
+ movs r0, 0x16
+ strb r0, [r5, o_MusicPlayerTrack_lfoSpeed]
+ movs r0, 0x1
+ adds r1, r5, 0x6
+ strb r0, [r1, o_MusicPlayerTrack_ToneData_type - 0x6]
+ b _081DD938
+_081DD8E0:
+ ldr r2, [r5, o_MusicPlayerTrack_cmdPtr]
+ ldrb r1, [r2]
+ cmp r1, 0x80
+ bhs _081DD8EC
+ ldrb r1, [r5, o_MusicPlayerTrack_runningStatus]
+ b _081DD8F6
+_081DD8EC:
+ adds r2, 0x1
+ str r2, [r5, o_MusicPlayerTrack_cmdPtr]
+ cmp r1, 0xBD
+ bcc _081DD8F6
+ strb r1, [r5, o_MusicPlayerTrack_runningStatus]
+_081DD8F6:
+ cmp r1, 0xCF
+ bcc _081DD90C
+ mov r0, r8
+ ldr r3, [r0, o_SoundInfo_plynote]
+ adds r0, r1, 0
+ subs r0, 0xCF
+ adds r1, r7, 0
+ adds r2, r5, 0
+ bl call_r3
+ b _081DD938
+_081DD90C:
+ cmp r1, 0xB0
+ bls _081DD92E
+ adds r0, r1, 0
+ subs r0, 0xB1
+ strb r0, [r7, o_MusicPlayerInfo_cmd]
+ mov r3, r8
+ ldr r3, [r3, o_SoundInfo_MPlayJumpTable]
+ lsls r0, 2
+ ldr r3, [r3, r0]
+ adds r0, r7, 0
+ adds r1, r5, 0
+ bl call_r3
+ ldrb r0, [r5, o_MusicPlayerTrack_flags]
+ cmp r0, 0
+ beq _081DD994
+ b _081DD938
+_081DD92E:
+ ldr r0, lt_gClockTable
+ subs r1, 0x80
+ adds r1, r0
+ ldrb r0, [r1]
+ strb r0, [r5, o_MusicPlayerTrack_wait]
+_081DD938:
+ ldrb r0, [r5, o_MusicPlayerTrack_wait]
+ cmp r0, 0
+ beq _081DD8E0
+ subs r0, 0x1
+ strb r0, [r5, o_MusicPlayerTrack_wait]
+ ldrb r1, [r5, o_MusicPlayerTrack_lfoSpeed]
+ cmp r1, 0
+ beq _081DD994
+ ldrb r0, [r5, o_MusicPlayerTrack_mod]
+ cmp r0, 0
+ beq _081DD994
+ ldrb r0, [r5, o_MusicPlayerTrack_lfoDelayC]
+ cmp r0, 0
+ beq _081DD95A
+ subs r0, 0x1
+ strb r0, [r5, o_MusicPlayerTrack_lfoDelayC]
+ b _081DD994
+_081DD95A:
+ ldrb r0, [r5, o_MusicPlayerTrack_lfoSpeedC]
+ adds r0, r1
+ strb r0, [r5, o_MusicPlayerTrack_lfoSpeedC]
+ adds r1, r0, 0
+ subs r0, 0x40
+ lsls r0, 24
+ bpl _081DD96E
+ lsls r2, r1, 24
+ asrs r2, 24
+ b _081DD972
+_081DD96E:
+ movs r0, 0x80
+ subs r2, r0, r1
+_081DD972:
+ ldrb r0, [r5, o_MusicPlayerTrack_mod]
+ muls r0, r2
+ asrs r2, r0, 6
+ ldrb r0, [r5, o_MusicPlayerTrack_modM]
+ eors r0, r2
+ lsls r0, 24
+ beq _081DD994
+ strb r2, [r5, o_MusicPlayerTrack_modM]
+ ldrb r0, [r5]
+ ldrb r1, [r5, o_MusicPlayerTrack_modT]
+ cmp r1, 0
+ bne _081DD98E
+ movs r1, 0xC
+ b _081DD990
+_081DD98E:
+ movs r1, 0x3
+_081DD990:
+ orrs r0, r1
+ strb r0, [r5, o_MusicPlayerTrack_flags]
+_081DD994:
+ mov r3, r10
+ mov r4, r11
+_081DD998:
+ subs r6, 0x1
+ ble _081DD9A4
+ movs r0, 0x50
+ adds r5, r0
+ lsls r3, 1
+ b _081DD87C
+_081DD9A4:
+ ldr r0, [r7, o_MusicPlayerInfo_clock]
+ adds r0, 0x1
+ str r0, [r7, o_MusicPlayerInfo_clock]
+ cmp r4, 0
+ bne _081DD9B6
+ movs r0, 0x80
+ lsls r0, 24
+ str r0, [r7, o_MusicPlayerInfo_status]
+ b _081DDA6C
+_081DD9B6:
+ str r4, [r7, o_MusicPlayerInfo_status]
+ ldrh r0, [r7, o_MusicPlayerInfo_tempoC]
+ subs r0, 0x96
+_081DD9BC:
+ strh r0, [r7, o_MusicPlayerInfo_tempoC]
+ cmp r0, 0x96
+ bcc _081DD9C4
+ b _081DD874
+_081DD9C4:
+ ldrb r2, [r7, o_MusicPlayerInfo_trackCount]
+ ldr r5, [r7, o_MusicPlayerInfo_tracks]
+_081DD9C8:
+ ldrb r0, [r5, o_MusicPlayerTrack_flags]
+ movs r1, 0x80
+ tst r1, r0
+ beq _081DDA62
+ movs r1, 0xF
+ tst r1, r0
+ beq _081DDA62
+ mov r9, r2
+ adds r0, r7, 0
+ adds r1, r5, 0
+ bl TrkVolPitSet
+ ldr r4, [r5, o_MusicPlayerTrack_chan]
+ cmp r4, 0
+ beq _081DDA58
+_081DD9E6:
+ ldrb r1, [r4, o_SoundChannel_status]
+ movs r0, 0xC7
+ tst r0, r1
+ bne _081DD9F6
+ adds r0, r4, 0
+ bl ClearChain
+ b _081DDA52
+_081DD9F6:
+ ldrb r0, [r4, o_SoundChannel_type]
+ movs r6, 0x7
+ ands r6, r0
+ ldrb r3, [r5, o_MusicPlayerTrack_flags]
+ movs r0, 0x3
+ tst r0, r3
+ beq _081DDA14
+ bl ChnVolSetAsm
+ cmp r6, 0
+ beq _081DDA14
+ ldrb r0, [r4, o_CgbChannel_mo]
+ movs r1, 0x1
+ orrs r0, r1
+ strb r0, [r4, o_CgbChannel_mo]
+_081DDA14:
+ ldrb r3, [r5, o_MusicPlayerTrack_flags]
+ movs r0, 0xC
+ tst r0, r3
+ beq _081DDA52
+ ldrb r1, [r4, o_SoundChannel_ky]
+ movs r0, 0x8
+ ldrsb r0, [r5, r0]
+ adds r2, r1, r0
+ bpl _081DDA28
+ movs r2, 0
+_081DDA28:
+ cmp r6, 0
+ beq _081DDA46
+ mov r0, r8
+ ldr r3, [r0, o_SoundInfo_MidiKeyToCgbFreq]
+ adds r1, r2, 0
+ ldrb r2, [r5, o_MusicPlayerTrack_pitM]
+ adds r0, r6, 0
+ bl call_r3
+ str r0, [r4, o_CgbChannel_fr]
+ ldrb r0, [r4, o_CgbChannel_mo]
+ movs r1, 0x2
+ orrs r0, r1
+ strb r0, [r4, o_CgbChannel_mo]
+ b _081DDA52
+_081DDA46:
+ adds r1, r2, 0
+ ldrb r2, [r5, o_MusicPlayerTrack_pitM]
+ ldr r0, [r4, o_SoundChannel_wav]
+ bl MidiKeyToFreq
+ str r0, [r4, o_SoundChannel_freq]
+_081DDA52:
+ ldr r4, [r4, o_SoundChannel_np]
+ cmp r4, 0
+ bne _081DD9E6
+_081DDA58:
+ ldrb r0, [r5, o_MusicPlayerTrack_flags]
+ movs r1, 0xF0
+ ands r0, r1
+ strb r0, [r5, o_MusicPlayerTrack_flags]
+ mov r2, r9
+_081DDA62:
+ subs r2, 0x1
+ ble _081DDA6C
+ movs r0, 0x50
+ adds r5, r0
+ bgt _081DD9C8
+_081DDA6C:
+ ldr r0, lt2_ID_NUMBER
+ str r0, [r7, o_MusicPlayerInfo_ident]
+ pop {r0-r7}
+ mov r8, r0
+ mov r9, r1
+ mov r10, r2
+ mov r11, r3
+ pop {r3}
+
+call_r3:
+ bx r3
+
+ .align 2, 0
+lt_gClockTable: .word gClockTable
+lt2_SOUND_INFO_PTR: .word SOUND_INFO_PTR
+lt2_ID_NUMBER: .word ID_NUMBER
+ thumb_func_end MPlayMain
+
+ thumb_func_start TrackStop
+TrackStop:
+ push {r4-r6,lr}
+ adds r5, r1, 0
+ ldrb r1, [r5, o_MusicPlayerTrack_flags]
+ movs r0, 0x80
+ tst r0, r1
+ beq TrackStop_Done
+ ldr r4, [r5, o_MusicPlayerTrack_chan]
+ cmp r4, 0
+ beq TrackStop_3
+ movs r6, 0
+TrackStop_Loop:
+ ldrb r0, [r4, o_SoundChannel_status]
+ cmp r0, 0
+ beq TrackStop_2
+ ldrb r0, [r4, o_SoundChannel_type]
+ movs r3, 0x7
+ ands r0, r3
+ beq TrackStop_1
+ ldr r3, =SOUND_INFO_PTR
+ ldr r3, [r3]
+ ldr r3, [r3, o_SoundInfo_CgbOscOff]
+ bl call_r3
+TrackStop_1:
+ strb r6, [r4, o_SoundChannel_status]
+TrackStop_2:
+ str r6, [r4, o_SoundChannel_track]
+ ldr r4, [r4, o_SoundChannel_np]
+ cmp r4, 0
+ bne TrackStop_Loop
+TrackStop_3:
+ str r4, [r5, o_MusicPlayerTrack_chan]
+TrackStop_Done:
+ pop {r4-r6}
+ pop {r0}
+ bx r0
+ .pool
+ thumb_func_end TrackStop
+
+ thumb_func_start ChnVolSetAsm
+ChnVolSetAsm:
+ ldrb r1, [r4, 0x12]
+ movs r0, 0x14
+ ldrsb r2, [r4, r0]
+ movs r3, 0x80
+ adds r3, r2
+ muls r3, r1
+ ldrb r0, [r5, 0x10]
+ muls r0, r3
+ asrs r0, 14
+ cmp r0, 0xFF
+ bls _081DDAE8
+ movs r0, 0xFF
+_081DDAE8:
+ strb r0, [r4, 0x2]
+ movs r3, 0x7F
+ subs r3, r2
+ muls r3, r1
+ ldrb r0, [r5, 0x11]
+ muls r0, r3
+ asrs r0, 14
+ cmp r0, 0xFF
+ bls _081DDAFC
+ movs r0, 0xFF
+_081DDAFC:
+ strb r0, [r4, 0x3]
+ bx lr
+ thumb_func_end ChnVolSetAsm
+
+ thumb_func_start ply_note
+ply_note:
+ push {r4-r7,lr}
+ mov r4, r8
+ mov r5, r9
+ mov r6, r10
+ mov r7, r11
+ push {r4-r7}
+ sub sp, 0x18
+ str r1, [sp]
+ adds r5, r2, 0
+ ldr r1, =SOUND_INFO_PTR
+ ldr r1, [r1]
+ str r1, [sp, 0x4]
+ ldr r1, =gClockTable
+ adds r0, r1
+ ldrb r0, [r0]
+ strb r0, [r5, o_MusicPlayerTrack_gateTime]
+ ldr r3, [r5, o_MusicPlayerTrack_cmdPtr]
+ ldrb r0, [r3]
+ cmp r0, 0x80
+ bhs _081DDB46
+ strb r0, [r5, o_MusicPlayerTrack_key]
+ adds r3, 0x1
+ ldrb r0, [r3]
+ cmp r0, 0x80
+ bhs _081DDB44
+ strb r0, [r5, o_MusicPlayerTrack_velocity]
+ adds r3, 0x1
+ ldrb r0, [r3]
+ cmp r0, 0x80
+ bhs _081DDB44
+ ldrb r1, [r5, o_MusicPlayerTrack_gateTime]
+ adds r1, r0
+ strb r1, [r5, o_MusicPlayerTrack_gateTime]
+ adds r3, 0x1
+_081DDB44:
+ str r3, [r5, o_MusicPlayerTrack_cmdPtr]
+_081DDB46:
+ movs r0, 0
+ str r0, [sp, 0x14]
+ adds r4, r5, 0
+ adds r4, o_MusicPlayerTrack_ToneData_type
+ ldrb r2, [r4]
+ movs r0, TONEDATA_TYPE_RHY | TONEDATA_TYPE_SPL
+ tst r0, r2
+ beq _081DDB98
+ ldrb r3, [r5, o_MusicPlayerTrack_key]
+ movs r0, TONEDATA_TYPE_SPL
+ tst r0, r2
+ beq _081DDB66
+ ldr r1, [r5, o_MusicPlayerTrack_ToneData_keySplitTable]
+ adds r1, r3
+ ldrb r0, [r1]
+ b _081DDB68
+_081DDB66:
+ adds r0, r3, 0
+_081DDB68:
+ lsls r1, r0, 1
+ adds r1, r0
+ lsls r1, 2
+ ldr r0, [r5, o_MusicPlayerTrack_ToneData_wav]
+ adds r1, r0
+ mov r9, r1
+ mov r6, r9
+ ldrb r1, [r6]
+ movs r0, 0xC0
+ tst r0, r1
+ beq _081DDB80
+ b _081DDCEA
+_081DDB80:
+ movs r0, 0x80
+ tst r0, r2
+ beq _081DDB9C
+ ldrb r1, [r6, 0x3]
+ movs r0, 0x80
+ tst r0, r1
+ beq _081DDB94
+ subs r1, 0xC0
+ lsls r1, 1
+ str r1, [sp, 0x14]
+_081DDB94:
+ ldrb r3, [r6, 0x1]
+ b _081DDB9C
+_081DDB98:
+ mov r9, r4
+ ldrb r3, [r5, 0x5]
+_081DDB9C:
+ str r3, [sp, 0x8]
+ ldr r6, [sp]
+ ldrb r1, [r6, 0x9]
+ ldrb r0, [r5, 0x1D]
+ adds r0, r1
+ cmp r0, 0xFF
+ bls _081DDBAC
+ movs r0, 0xFF
+_081DDBAC:
+ str r0, [sp, 0x10]
+ mov r6, r9
+ ldrb r0, [r6]
+ movs r6, 0x7
+ ands r6, r0
+ str r6, [sp, 0xC]
+ beq _081DDBEC
+ ldr r0, [sp, 0x4]
+ ldr r4, [r0, 0x1C]
+ cmp r4, 0
+ bne _081DDBC4
+ b _081DDCEA
+_081DDBC4:
+ subs r6, 0x1
+ lsls r0, r6, 6
+ adds r4, r0
+ ldrb r1, [r4]
+ movs r0, 0xC7
+ tst r0, r1
+ beq _081DDC40
+ movs r0, 0x40
+ tst r0, r1
+ bne _081DDC40
+ ldrb r1, [r4, 0x13]
+ ldr r0, [sp, 0x10]
+ cmp r1, r0
+ bcc _081DDC40
+ beq _081DDBE4
+ b _081DDCEA
+_081DDBE4:
+ ldr r0, [r4, 0x2C]
+ cmp r0, r5
+ bcs _081DDC40
+ b _081DDCEA
+_081DDBEC:
+ ldr r6, [sp, 0x10]
+ adds r7, r5, 0
+ movs r2, 0
+ mov r8, r2
+ ldr r4, [sp, 0x4]
+ ldrb r3, [r4, 0x6]
+ adds r4, 0x50
+_081DDBFA:
+ ldrb r1, [r4]
+ movs r0, 0xC7
+ tst r0, r1
+ beq _081DDC40
+ movs r0, 0x40
+ tst r0, r1
+ beq _081DDC14
+ cmp r2, 0
+ bne _081DDC18
+ adds r2, 0x1
+ ldrb r6, [r4, 0x13]
+ ldr r7, [r4, 0x2C]
+ b _081DDC32
+_081DDC14:
+ cmp r2, 0
+ bne _081DDC34
+_081DDC18:
+ ldrb r0, [r4, 0x13]
+ cmp r0, r6
+ bcs _081DDC24
+ adds r6, r0, 0
+ ldr r7, [r4, 0x2C]
+ b _081DDC32
+_081DDC24:
+ bhi _081DDC34
+ ldr r0, [r4, 0x2C]
+ cmp r0, r7
+ bls _081DDC30
+ adds r7, r0, 0
+ b _081DDC32
+_081DDC30:
+ bcc _081DDC34
+_081DDC32:
+ mov r8, r4
+_081DDC34:
+ adds r4, 0x40
+ subs r3, 0x1
+ bgt _081DDBFA
+ mov r4, r8
+ cmp r4, 0
+ beq _081DDCEA
+_081DDC40:
+ adds r0, r4, 0
+ bl ClearChain
+ movs r1, 0
+ str r1, [r4, 0x30]
+ ldr r3, [r5, 0x20]
+ str r3, [r4, 0x34]
+ cmp r3, 0
+ beq _081DDC54
+ str r4, [r3, 0x30]
+_081DDC54:
+ str r4, [r5, 0x20]
+ str r5, [r4, 0x2C]
+ ldrb r0, [r5, 0x1B]
+ strb r0, [r5, 0x1C]
+ cmp r0, r1
+ beq _081DDC66
+ adds r1, r5, 0
+ bl clear_modM
+_081DDC66:
+ ldr r0, [sp]
+ adds r1, r5, 0
+ bl TrkVolPitSet
+ ldr r0, [r5, 0x4]
+ str r0, [r4, 0x10]
+ ldr r0, [sp, 0x10]
+ strb r0, [r4, 0x13]
+ ldr r0, [sp, 0x8]
+ strb r0, [r4, 0x8]
+ ldr r0, [sp, 0x14]
+ strb r0, [r4, 0x14]
+ mov r6, r9
+ ldrb r0, [r6]
+ strb r0, [r4, 0x1]
+ ldr r7, [r6, 0x4]
+ str r7, [r4, 0x24]
+ ldr r0, [r6, 0x8]
+ str r0, [r4, 0x4]
+ ldrh r0, [r5, 0x1E]
+ strh r0, [r4, 0xC]
+ bl ChnVolSetAsm
+ ldrb r1, [r4, 0x8]
+ movs r0, 0x8
+ ldrsb r0, [r5, r0]
+ adds r3, r1, r0
+ bpl _081DDCA0
+ movs r3, 0
+_081DDCA0:
+ ldr r6, [sp, 0xC]
+ cmp r6, 0
+ beq _081DDCCE
+ mov r6, r9
+ ldrb r0, [r6, 0x2]
+ strb r0, [r4, 0x1E]
+ ldrb r1, [r6, 0x3]
+ movs r0, 0x80
+ tst r0, r1
+ bne _081DDCBA
+ movs r0, 0x70
+ tst r0, r1
+ bne _081DDCBC
+_081DDCBA:
+ movs r1, 0x8
+_081DDCBC:
+ strb r1, [r4, 0x1F]
+ ldrb r2, [r5, 0x9]
+ adds r1, r3, 0
+ ldr r0, [sp, 0xC]
+ ldr r3, [sp, 0x4]
+ ldr r3, [r3, 0x30]
+ bl call_r3
+ b _081DDCDC
+_081DDCCE:
+ ldr r0, [r5, o_MusicPlayerTrack_unk_3C]
+ str r0, [r4, 0x18]
+ ldrb r2, [r5, 0x9]
+ adds r1, r3, 0
+ adds r0, r7, 0
+ bl MidiKeyToFreq
+_081DDCDC:
+ str r0, [r4, 0x20]
+ movs r0, 0x80
+ strb r0, [r4]
+ ldrb r1, [r5]
+ movs r0, 0xF0
+ ands r0, r1
+ strb r0, [r5]
+_081DDCEA:
+ add sp, 0x18
+ pop {r0-r7}
+ mov r8, r0
+ mov r9, r1
+ mov r10, r2
+ mov r11, r3
+ pop {r0}
+ bx r0
+ .pool
+ thumb_func_end ply_note
+
+ thumb_func_start ply_endtie
+ply_endtie:
+ push {r4,r5}
+ ldr r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ ldrb r3, [r2]
+ cmp r3, 0x80
+ bhs _081DDD16
+ strb r3, [r1, o_MusicPlayerTrack_key]
+ adds r2, 0x1
+ str r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ b _081DDD18
+_081DDD16:
+ ldrb r3, [r1, o_MusicPlayerTrack_key]
+_081DDD18:
+ ldr r1, [r1, o_MusicPlayerTrack_chan]
+ cmp r1, 0
+ beq _081DDD40
+ movs r4, 0x83
+ movs r5, 0x40
+_081DDD22:
+ ldrb r2, [r1, o_SoundChannel_status]
+ tst r2, r4
+ beq _081DDD3A
+ tst r2, r5
+ bne _081DDD3A
+ ldrb r0, [r1, o_SoundChannel_mk]
+ cmp r0, r3
+ bne _081DDD3A
+ movs r0, 0x40
+ orrs r2, r0
+ strb r2, [r1, o_SoundChannel_status]
+ b _081DDD40
+_081DDD3A:
+ ldr r1, [r1, o_SoundChannel_np]
+ cmp r1, 0
+ bne _081DDD22
+_081DDD40:
+ pop {r4,r5}
+ bx lr
+ thumb_func_end ply_endtie
+
+ thumb_func_start clear_modM
+clear_modM:
+ movs r2, 0
+ strb r2, [r1, o_MusicPlayerTrack_modM]
+ strb r2, [r1, o_MusicPlayerTrack_lfoSpeedC]
+ ldrb r2, [r1, o_MusicPlayerTrack_modT]
+ cmp r2, 0
+ bne _081DDD54
+ movs r2, 0xC
+ b _081DDD56
+_081DDD54:
+ movs r2, 0x3
+_081DDD56:
+ ldrb r3, [r1, o_MusicPlayerTrack_flags]
+ orrs r3, r2
+ strb r3, [r1, o_MusicPlayerTrack_flags]
+ bx lr
+ thumb_func_end clear_modM
+
+ thumb_func_start ld_r3_tp_adr_i
+ld_r3_tp_adr_i_unchecked:
+ ldr r2, [r1, o_MusicPlayerTrack_cmdPtr]
+ adds r3, r2, 1
+ str r3, [r1, o_MusicPlayerTrack_cmdPtr]
+ ldrb r3, [r2]
+ bx lr
+ thumb_func_end ld_r3_tp_adr_i
+
+ thumb_func_start ply_lfos
+ply_lfos:
+ mov r12, lr
+ bl ld_r3_tp_adr_i_unchecked
+ strb r3, [r1, o_MusicPlayerTrack_lfoSpeed]
+ cmp r3, 0
+ bne _081DDD7C
+ bl clear_modM
+_081DDD7C:
+ bx r12
+ thumb_func_end ply_lfos
+
+ thumb_func_start ply_mod
+ply_mod:
+ mov r12, lr
+ bl ld_r3_tp_adr_i_unchecked
+ strb r3, [r1, o_MusicPlayerTrack_mod]
+ cmp r3, 0
+ bne _081DDD90
+ bl clear_modM
+_081DDD90:
+ bx r12
+ thumb_func_end ply_mod
+
+ .align 2, 0 @ Don't pad with nop.
+
+ .bss
+ .align 3
+gUnknown_030007B8:
+ .space 0x40
+ .size gUnknown_030007B8, .-gUnknown_030007B8
+
+ .global gMPlayTrack_BGM
+gMPlayTrack_BGM:
+ .space 0x320
+ .size gMPlayTrack_BGM, .-gMPlayTrack_BGM
+
+ .global gMPlayTrack_SE1
+gMPlayTrack_SE1:
+ .space 0xF0
+ .size gMPlayTrack_SE1, .-gMPlayTrack_SE1
+
+ .global gMPlayTrack_SE2
+gMPlayTrack_SE2:
+ .space 0x2D0
+ .size gMPlayTrack_SE2, .-gMPlayTrack_SE2
+
+ .global gMPlayTrack_SE3
+gMPlayTrack_SE3:
+ .space 0x50
+ .size gMPlayTrack_SE3, .-gMPlayTrack_SE3
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-26 07:26:17 +0000