--- /dev/null
+@ Copyright (c) 2003-2021 James Daniels
+@ Distributed under the MIT License
+@ license terms: see LICENSE file in root or http://opensource.org/licenses/MIT
+
+.TEXT
+.SECTION .text,"ax",%progbits
+.ALIGN
+.ARM
+
+.GLOBAL AAS_DoDMA3
+
+.GLOBAL AAS_MixAudio_SetMode_Normal
+.GLOBAL AAS_MixAudio_SetMode_Boost
+.GLOBAL AAS_MixAudio_SetMode_BoostAndClip
+
+.GLOBAL AAS_MixAudio_SetMaxChans_2
+.GLOBAL AAS_MixAudio_SetMaxChans_4
+.GLOBAL AAS_MixAudio_SetMaxChans_8
+
+.GLOBAL _AAS_vol_lookup
+
+
+@ Volume lookup table. -1 means use multiply, 0 to 7 means use bit shift.
+
+_AAS_vol_lookup:
+ .byte 0, 1, -1, 2, -1, -1, -1, 3, -1, -1, -1, -1, -1, -1, -1, 4
+ .byte -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5
+ .byte -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ .byte -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 6
+ .byte -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ .byte -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ .byte -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ .byte -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 7
+
+_ma_mul_r5_r0_r3:
+ .word 0x00000010
+ mul r5,r0,r3
+_ma_mov_r5_r0_lsl_0:
+ .word 0x00000001
+ mov r5,r0,lsl #0
+_ma_mlane_r5_r0_r3_r5:
+ .word 0x00000011
+ mlane r5,r0,r3,r5
+_ma_add_r5_r5_r0_lsl_0:
+ .word 0x00000011
+ add r5,r5,r0,lsl #0
+
+
+_ma_merge_noclip_start:
+ @ ma_again:
+
+ @ Merge
+ ldr r14,[sp,#24]
+ and r5,r14,r5,lsr #8
+ and r6,r14,r6,lsr #8
+ and r7,r14,r7,lsr #8
+ and r8,r14,r8,lsr #8
+ and r9,r14,r9,lsr #8
+ and r10,r14,r10,lsr #8
+ and r11,r14,r11,lsr #8
+ and r12,r14,r12,lsr #8
+ add r5,r5,r6,lsl #8
+ add r6,r7,r8,lsl #8
+ add r7,r9,r10,lsl #8
+ add r8,r11,r12,lsl #8
+
+ @ Store
+ stmia r4!,{r5-r8}
+
+ @ Loop
+ subs r14,r14,#0x2000000
+ .word 0xdaffffa5 @ ble ma_end
+
+ @ ma_start:
+ str r14,[sp,#24]
+_ma_merge_noclip_end:
+
+
+_ma_merge_boostnoclip_start:
+ @ ma_again:
+
+ @ Merge
+ ldr r14,[sp,#24]
+ and r5,r14,r5,lsr #7
+ and r6,r14,r6,lsr #7
+ and r7,r14,r7,lsr #7
+ and r8,r14,r8,lsr #7
+ and r9,r14,r9,lsr #7
+ and r10,r14,r10,lsr #7
+ and r11,r14,r11,lsr #7
+ and r12,r14,r12,lsr #7
+ add r5,r5,r6,lsl #8
+ add r6,r7,r8,lsl #8
+ add r7,r9,r10,lsl #8
+ add r8,r11,r12,lsl #8
+
+ @ Store
+ stmia r4!,{r5-r8}
+
+ @ Loop
+ subs r14,r14,#0x2000000
+ .word 0xdaffffa5 @ ble ma_end
+
+ @ ma_start:
+ str r14,[sp,#24]
+_ma_merge_boostnoclip_end:
+
+
+_ma_merge_clip_start:
+ _ma_mask_0x80808080: .word 0x80808080
+
+ .word 0,0 @ padding
+
+ @ ma_again:
+ @ Merge
+ ldr r14,[sp,#24]
+ .word 0xe51f2018 @ ldr r2,_ma_mask_0x80808080
+
+ and r0,r14,r5,lsr #8
+ and r1,r14,r6,lsr #8
+ add r0,r0,r1,lsl #8
+ and r5,r14,r5,lsr #7
+ and r6,r14,r6,lsr #7
+ add r5,r5,r6,lsl #8
+ eor r0,r0,r5
+ ands r0,r2,r0
+ beq no_clip1 @ perhaps not worthwhile?
+ and r1,r2,r5
+ sub r1,r2,r1,lsr #7
+ sub r0,r0,r0,lsr #7
+ orr r0,r0,r0,lsl #1
+ bic r5,r5,r0
+ and r1,r1,r0
+ orr r5,r5,r1
+no_clip1:
+
+ and r0,r14,r7,lsr #8
+ and r1,r14,r8,lsr #8
+ add r0,r0,r1,lsl #8
+ and r7,r14,r7,lsr #7
+ and r8,r14,r8,lsr #7
+ add r6,r7,r8,lsl #8
+ eor r0,r0,r6
+ ands r0,r2,r0
+ beq no_clip2 @ perhaps not worthwhile?
+ and r1,r2,r6
+ sub r1,r2,r1,lsr #7
+ sub r0,r0,r0,lsr #7
+ orr r0,r0,r0,lsl #1
+ bic r6,r6,r0
+ and r1,r1,r0
+ orr r6,r6,r1
+no_clip2:
+
+ and r0,r14,r9,lsr #8
+ and r1,r14,r10,lsr #8
+ add r0,r0,r1,lsl #8
+ and r9,r14,r9,lsr #7
+ and r10,r14,r10,lsr #7
+ add r7,r9,r10,lsl #8
+ eor r0,r0,r7
+ ands r0,r2,r0
+ beq no_clip3 @ perhaps not worthwhile?
+ and r1,r2,r7
+ sub r1,r2,r1,lsr #7
+ sub r0,r0,r0,lsr #7
+ orr r0,r0,r0,lsl #1
+ bic r7,r7,r0
+ and r1,r1,r0
+ orr r7,r7,r1
+no_clip3:
+
+ and r0,r14,r11,lsr #8
+ and r1,r14,r12,lsr #8
+ add r0,r0,r1,lsl #8
+ and r11,r14,r11,lsr #7
+ and r12,r14,r12,lsr #7
+ add r8,r11,r12,lsl #8
+ eor r0,r0,r8
+ ands r0,r2,r0
+ beq no_clip4 @ perhaps not worthwhile?
+ and r1,r2,r8
+ sub r1,r2,r1,lsr #7
+ sub r0,r0,r0,lsr #7
+ orr r0,r0,r0,lsl #1
+ bic r8,r8,r0
+ and r1,r1,r0
+ orr r8,r8,r1
+no_clip4:
+
+ @ Store
+ stmia r4!,{r5-r8}
+
+ @ Loop
+ subs r14,r14,#0x2000000
+ .word 0xdaffff6d @ ble ma_end
+
+ @ ma_start:
+ str r14,[sp,#24]
+_ma_merge_clip_end:
+
+_ma_clip:
+add r12,pc,#0x540 @ adr r12,ma_buffer_start
+.word 0xea000091 @ b ma_start
+add r0,pc,#0x248 @ adr r0,ma_again
+
+_ma_noclip:
+add r12,pc,#0x460 @ adr r12,ma_buffer_start
+.word 0xea000059 @ b ma_start
+add r0,pc,#0x23c @ adr r0,ma_again
+
+
+AAS_MixAudio_SetMode_BoostAndClip:
+ adr r12,_ma_clip
+ adr r0,_ma_merge_clip_start
+ mov r2,#((_ma_merge_clip_end-_ma_merge_clip_start)/4)
+
+do_mods:
+ ldr r1,=_AAS_MixAudio_mod4
+ add r2,r2,#0x84000000
+ mov r3,#0x04000000
+ add r3,r3,#0xd4
+ stmia r3,{r0-r2}
+ ldmia r12,{r1-r3}
+ ldr r0,=_AAS_MixAudio_mod1
+ str r1,[r0]
+ ldr r0,=_AAS_MixAudio_mod2
+ str r2,[r0]
+ ldr r0,=_AAS_MixAudio_mod3
+ str r3,[r0]
+ bx lr
+
+
+AAS_MixAudio_SetMode_Normal:
+ adr r12,_ma_noclip
+ adr r0,_ma_merge_noclip_start
+ mov r2,#((_ma_merge_noclip_end-_ma_merge_noclip_start)/4)
+ b do_mods
+
+
+AAS_MixAudio_SetMode_Boost:
+ adr r12,_ma_noclip
+ adr r0,_ma_merge_boostnoclip_start
+ mov r2,#((_ma_merge_boostnoclip_end-_ma_merge_boostnoclip_start)/4)
+ b do_mods
+
+
+_ma_2ch:
+mov r6,#0x10000000
+mov r10,#2
+mov r14,#2
+sub r1,r1,#(20*2)
+
+_ma_4ch:
+mov r6,#0x30000000
+mov r10,#4
+mov r14,#4
+sub r1,r1,#(20*4)
+
+_ma_8ch:
+mov r6,#0x70000000
+mov r10,#8
+mov r14,#8
+sub r1,r1,#(20*8)
+
+
+AAS_MixAudio_SetMaxChans_4:
+ adr r12,_ma_4ch
+
+do_mods2:
+ ldmia r12,{r0-r3}
+ ldr r12,=_AAS_MixAudio_mod5
+ str r0,[r12]
+ ldr r12,=_AAS_MixAudio_mod6
+ str r1,[r12]
+ ldr r12,=_AAS_MixAudio_mod7
+ str r2,[r12]
+ ldr r12,=_AAS_MixAudio_mod8
+ str r3,[r12]
+ bx lr
+
+
+AAS_MixAudio_SetMaxChans_8:
+ adr r12,_ma_8ch
+ b do_mods2
+
+
+AAS_MixAudio_SetMaxChans_2:
+ adr r12,_ma_2ch
+ b do_mods2
+
+.pool
+
+
+AAS_DoDMA3:
+ mov r3,#0x04000000
+ add r3,r3,#0xd4
+ stmia r3,{r0-r2}
+ bx lr
projects / gbajam21 / blobdiff