Decompile __getTrackByte
This commit is contained in:
Ryan Dwyer
parent
04d5a19550
commit
b8eb8b21ab
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@ -7,7 +7,6 @@
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u32 func00038d30(void);
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u32 func00038eb0(void);
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u32 func0003902c(void);
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u32 func00039958(void);
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u32 func00039b4c(void);
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u32 func00039be0(void);
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u32 func00039c30(void);
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@ -6,6 +6,8 @@
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#include "data.h"
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#include "types.h"
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u8 __getTrackByte(ALCSeq *seq, u32 track);
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GLOBAL_ASM(
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glabel func00038d30
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/* 38d30: 27bdffd8 */ addiu $sp,$sp,-40
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@ -224,7 +226,7 @@ glabel func0003902c
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/* 3903c: afa60038 */ sw $a2,0x38($sp)
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/* 39040: afa7003c */ sw $a3,0x3c($sp)
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/* 39044: 8fa40030 */ lw $a0,0x30($sp)
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/* 39048: 0c00e656 */ jal func00039958
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/* 39048: 0c00e656 */ jal __getTrackByte
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/* 3904c: 8fa50034 */ lw $a1,0x34($sp)
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/* 39050: a3a2002b */ sb $v0,0x2b($sp)
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/* 39054: 93ae002b */ lbu $t6,0x2b($sp)
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@ -232,7 +234,7 @@ glabel func0003902c
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/* 3905c: 15c100b9 */ bne $t6,$at,.L00039344
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/* 39060: 00000000 */ nop
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/* 39064: 8fa40030 */ lw $a0,0x30($sp)
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/* 39068: 0c00e656 */ jal func00039958
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/* 39068: 0c00e656 */ jal __getTrackByte
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/* 3906c: 8fa50034 */ lw $a1,0x34($sp)
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/* 39070: a3a20023 */ sb $v0,0x23($sp)
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/* 39074: 93af0023 */ lbu $t7,0x23($sp)
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@ -249,17 +251,17 @@ glabel func0003902c
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/* 390a0: 8fab0038 */ lw $t3,0x38($sp)
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/* 390a4: a16a0009 */ sb $t2,0x9($t3)
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/* 390a8: 8fa40030 */ lw $a0,0x30($sp)
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/* 390ac: 0c00e656 */ jal func00039958
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/* 390ac: 0c00e656 */ jal __getTrackByte
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/* 390b0: 8fa50034 */ lw $a1,0x34($sp)
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/* 390b4: 8fac0038 */ lw $t4,0x38($sp)
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/* 390b8: a182000b */ sb $v0,0xb($t4)
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/* 390bc: 8fa40030 */ lw $a0,0x30($sp)
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/* 390c0: 0c00e656 */ jal func00039958
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/* 390c0: 0c00e656 */ jal __getTrackByte
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/* 390c4: 8fa50034 */ lw $a1,0x34($sp)
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/* 390c8: 8fad0038 */ lw $t5,0x38($sp)
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/* 390cc: a1a2000c */ sb $v0,0xc($t5)
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/* 390d0: 8fa40030 */ lw $a0,0x30($sp)
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/* 390d4: 0c00e656 */ jal func00039958
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/* 390d4: 0c00e656 */ jal __getTrackByte
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/* 390d8: 8fa50034 */ lw $a1,0x34($sp)
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/* 390dc: 8fae0038 */ lw $t6,0x38($sp)
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/* 390e0: a1c2000d */ sb $v0,0xd($t6)
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@ -303,7 +305,7 @@ glabel func0003902c
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/* 39168: 15a1001a */ bne $t5,$at,.L000391d4
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/* 3916c: 00000000 */ nop
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/* 39170: 8fa40030 */ lw $a0,0x30($sp)
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/* 39174: 0c00e656 */ jal func00039958
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/* 39174: 0c00e656 */ jal __getTrackByte
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/* 39178: 8fa50034 */ lw $a1,0x34($sp)
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/* 3917c: a3a2002b */ sb $v0,0x2b($sp)
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/* 39180: 93ae002b */ lbu $t6,0x2b($sp)
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@ -311,7 +313,7 @@ glabel func0003902c
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/* 39188: 000e7a00 */ sll $t7,$t6,0x8
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/* 3918c: ad8f000c */ sw $t7,0xc($t4)
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/* 39190: 8fa40030 */ lw $a0,0x30($sp)
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/* 39194: 0c00e656 */ jal func00039958
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/* 39194: 0c00e656 */ jal __getTrackByte
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/* 39198: 8fa50034 */ lw $a1,0x34($sp)
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/* 3919c: a3a2002b */ sb $v0,0x2b($sp)
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/* 391a0: 8fb80038 */ lw $t8,0x38($sp)
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@ -440,7 +442,7 @@ glabel func0003902c
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/* 39370: 01c95825 */ or $t3,$t6,$t1
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/* 39374: a1eb0008 */ sb $t3,0x8($t7)
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/* 39378: 8fa40030 */ lw $a0,0x30($sp)
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/* 3937c: 0c00e656 */ jal func00039958
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/* 3937c: 0c00e656 */ jal __getTrackByte
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/* 39380: 8fa50034 */ lw $a1,0x34($sp)
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/* 39384: 8fac0038 */ lw $t4,0x38($sp)
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/* 39388: a1820009 */ sb $v0,0x9($t4)
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@ -472,7 +474,7 @@ glabel func0003902c
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/* 393e8: 13210013 */ beq $t9,$at,.L00039438
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/* 393ec: 00000000 */ nop
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/* 393f0: 8fa40030 */ lw $a0,0x30($sp)
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/* 393f4: 0c00e656 */ jal func00039958
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/* 393f4: 0c00e656 */ jal __getTrackByte
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/* 393f8: 8fa50034 */ lw $a1,0x34($sp)
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/* 393fc: 8fae0038 */ lw $t6,0x38($sp)
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/* 39400: a1c2000a */ sb $v0,0xa($t6)
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@ -782,137 +784,51 @@ glabel func000395e0
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/* 39954: 00000000 */ nop
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);
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GLOBAL_ASM(
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glabel func00039958
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/* 39958: 27bdfff0 */ addiu $sp,$sp,-16
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/* 3995c: 00857021 */ addu $t6,$a0,$a1
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/* 39960: 91cf0098 */ lbu $t7,0x98($t6)
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/* 39964: 11e00013 */ beqz $t7,.L000399b4
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/* 39968: 00000000 */ nop
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/* 3996c: 0005c080 */ sll $t8,$a1,0x2
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/* 39970: 0098c821 */ addu $t9,$a0,$t8
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/* 39974: 8f280058 */ lw $t0,0x58($t9)
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/* 39978: 91090000 */ lbu $t1,0x0($t0)
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/* 3997c: a3a9000f */ sb $t1,0xf($sp)
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/* 39980: 00055080 */ sll $t2,$a1,0x2
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/* 39984: 008a5821 */ addu $t3,$a0,$t2
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/* 39988: 8d6c0058 */ lw $t4,0x58($t3)
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/* 3998c: 00057080 */ sll $t6,$a1,0x2
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/* 39990: 008e7821 */ addu $t7,$a0,$t6
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/* 39994: 258d0001 */ addiu $t5,$t4,0x1
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/* 39998: aded0058 */ sw $t5,0x58($t7)
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/* 3999c: 0085c021 */ addu $t8,$a0,$a1
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/* 399a0: 93190098 */ lbu $t9,0x98($t8)
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/* 399a4: 00854821 */ addu $t1,$a0,$a1
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/* 399a8: 2728ffff */ addiu $t0,$t9,-1
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/* 399ac: 10000061 */ b .L00039b34
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/* 399b0: a1280098 */ sb $t0,0x98($t1)
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.L000399b4:
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/* 399b4: 00055080 */ sll $t2,$a1,0x2
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/* 399b8: 008a5821 */ addu $t3,$a0,$t2
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/* 399bc: 8d6c0018 */ lw $t4,0x18($t3)
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/* 399c0: 918e0000 */ lbu $t6,0x0($t4)
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/* 399c4: a3ae000f */ sb $t6,0xf($sp)
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/* 399c8: 00056880 */ sll $t5,$a1,0x2
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/* 399cc: 008d7821 */ addu $t7,$a0,$t5
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/* 399d0: 8df80018 */ lw $t8,0x18($t7)
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/* 399d4: 00054080 */ sll $t0,$a1,0x2
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/* 399d8: 00884821 */ addu $t1,$a0,$t0
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/* 399dc: 27190001 */ addiu $t9,$t8,0x1
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/* 399e0: ad390018 */ sw $t9,0x18($t1)
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/* 399e4: 93aa000f */ lbu $t2,0xf($sp)
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/* 399e8: 240100fe */ addiu $at,$zero,0xfe
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/* 399ec: 15410051 */ bne $t2,$at,.L00039b34
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/* 399f0: 00000000 */ nop
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/* 399f4: 00055880 */ sll $t3,$a1,0x2
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/* 399f8: 008b6021 */ addu $t4,$a0,$t3
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/* 399fc: 8d8e0018 */ lw $t6,0x18($t4)
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/* 39a00: 91cd0000 */ lbu $t5,0x0($t6)
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/* 39a04: a3ad000b */ sb $t5,0xb($sp)
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/* 39a08: 00057880 */ sll $t7,$a1,0x2
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/* 39a0c: 008fc021 */ addu $t8,$a0,$t7
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/* 39a10: 8f080018 */ lw $t0,0x18($t8)
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/* 39a14: 00054880 */ sll $t1,$a1,0x2
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/* 39a18: 00895021 */ addu $t2,$a0,$t1
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/* 39a1c: 25190001 */ addiu $t9,$t0,0x1
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/* 39a20: ad590018 */ sw $t9,0x18($t2)
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/* 39a24: 93ab000b */ lbu $t3,0xb($sp)
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/* 39a28: 240100fe */ addiu $at,$zero,0xfe
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/* 39a2c: 11610041 */ beq $t3,$at,.L00039b34
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/* 39a30: 00000000 */ nop
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/* 39a34: 93ac000b */ lbu $t4,0xb($sp)
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/* 39a38: a3ac000d */ sb $t4,0xd($sp)
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/* 39a3c: 00057080 */ sll $t6,$a1,0x2
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/* 39a40: 008e6821 */ addu $t5,$a0,$t6
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/* 39a44: 8daf0018 */ lw $t7,0x18($t5)
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/* 39a48: 91f80000 */ lbu $t8,0x0($t7)
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/* 39a4c: a3b8000e */ sb $t8,0xe($sp)
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/* 39a50: 00054080 */ sll $t0,$a1,0x2
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/* 39a54: 00884821 */ addu $t1,$a0,$t0
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/* 39a58: 8d390018 */ lw $t9,0x18($t1)
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/* 39a5c: 00055880 */ sll $t3,$a1,0x2
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/* 39a60: 008b6021 */ addu $t4,$a0,$t3
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/* 39a64: 272a0001 */ addiu $t2,$t9,0x1
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/* 39a68: ad8a0018 */ sw $t2,0x18($t4)
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/* 39a6c: 00057080 */ sll $t6,$a1,0x2
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/* 39a70: 008e6821 */ addu $t5,$a0,$t6
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/* 39a74: 8daf0018 */ lw $t7,0x18($t5)
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/* 39a78: 91f80000 */ lbu $t8,0x0($t7)
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/* 39a7c: a3b8000c */ sb $t8,0xc($sp)
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/* 39a80: 00054080 */ sll $t0,$a1,0x2
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/* 39a84: 00884821 */ addu $t1,$a0,$t0
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/* 39a88: 8d390018 */ lw $t9,0x18($t1)
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/* 39a8c: 00055080 */ sll $t2,$a1,0x2
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/* 39a90: 008a6021 */ addu $t4,$a0,$t2
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/* 39a94: 272b0001 */ addiu $t3,$t9,0x1
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/* 39a98: ad8b0018 */ sw $t3,0x18($t4)
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/* 39a9c: 93ae000d */ lbu $t6,0xd($sp)
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/* 39aa0: afae0004 */ sw $t6,0x4($sp)
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/* 39aa4: 8fad0004 */ lw $t5,0x4($sp)
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/* 39aa8: 000d7a00 */ sll $t7,$t5,0x8
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/* 39aac: afaf0004 */ sw $t7,0x4($sp)
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/* 39ab0: 8fb80004 */ lw $t8,0x4($sp)
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/* 39ab4: 93a8000e */ lbu $t0,0xe($sp)
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/* 39ab8: 03084821 */ addu $t1,$t8,$t0
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/* 39abc: afa90004 */ sw $t1,0x4($sp)
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/* 39ac0: 0005c880 */ sll $t9,$a1,0x2
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/* 39ac4: 00995021 */ addu $t2,$a0,$t9
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/* 39ac8: 8d4b0018 */ lw $t3,0x18($t2)
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/* 39acc: 8fac0004 */ lw $t4,0x4($sp)
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/* 39ad0: 00057880 */ sll $t7,$a1,0x2
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/* 39ad4: 008fc021 */ addu $t8,$a0,$t7
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/* 39ad8: 016c7023 */ subu $t6,$t3,$t4
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/* 39adc: 25cdfffc */ addiu $t5,$t6,-4
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/* 39ae0: af0d0058 */ sw $t5,0x58($t8)
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/* 39ae4: 93a8000c */ lbu $t0,0xc($sp)
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/* 39ae8: 00854821 */ addu $t1,$a0,$a1
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/* 39aec: a1280098 */ sb $t0,0x98($t1)
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/* 39af0: 0005c880 */ sll $t9,$a1,0x2
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/* 39af4: 00995021 */ addu $t2,$a0,$t9
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/* 39af8: 8d4b0058 */ lw $t3,0x58($t2)
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/* 39afc: 916c0000 */ lbu $t4,0x0($t3)
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/* 39b00: a3ac000f */ sb $t4,0xf($sp)
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/* 39b04: 00057080 */ sll $t6,$a1,0x2
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/* 39b08: 008e7821 */ addu $t7,$a0,$t6
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/* 39b0c: 8ded0058 */ lw $t5,0x58($t7)
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/* 39b10: 00054080 */ sll $t0,$a1,0x2
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/* 39b14: 00884821 */ addu $t1,$a0,$t0
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/* 39b18: 25b80001 */ addiu $t8,$t5,0x1
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/* 39b1c: ad380058 */ sw $t8,0x58($t1)
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/* 39b20: 0085c821 */ addu $t9,$a0,$a1
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/* 39b24: 932a0098 */ lbu $t2,0x98($t9)
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/* 39b28: 00856021 */ addu $t4,$a0,$a1
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/* 39b2c: 254bffff */ addiu $t3,$t2,-1
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/* 39b30: a18b0098 */ sb $t3,0x98($t4)
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.L00039b34:
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/* 39b34: 10000003 */ b .L00039b44
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/* 39b38: 93a2000f */ lbu $v0,0xf($sp)
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/* 39b3c: 10000001 */ b .L00039b44
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/* 39b40: 00000000 */ nop
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.L00039b44:
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/* 39b44: 03e00008 */ jr $ra
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/* 39b48: 27bd0010 */ addiu $sp,$sp,0x10
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);
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u8 __getTrackByte(ALCSeq *seq, u32 track)
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{
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u8 theByte;
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if (seq->curBULen[track]) {
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theByte = *seq->curBUPtr[track];
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seq->curBUPtr[track]++;
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seq->curBULen[track]--;
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} else /* need to handle backup mode */ {
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theByte = *seq->curLoc[track];
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seq->curLoc[track]++;
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if (theByte == AL_CMIDI_BLOCK_CODE) {
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u8 loBackUp, hiBackUp, theLen, nextByte;
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u32 backup;
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nextByte = *seq->curLoc[track];
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seq->curLoc[track]++;
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if (nextByte != AL_CMIDI_BLOCK_CODE) {
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/* if here, then got a backup section. get the amount of
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backup, and the len of the section. Subtract the amount of
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backup from the curLoc ptr, and subtract four more, since
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curLoc has been advanced by four while reading the codes. */
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hiBackUp = nextByte;
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loBackUp = *seq->curLoc[track];
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seq->curLoc[track]++;
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theLen = *seq->curLoc[track];
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seq->curLoc[track]++;
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backup = (u32)hiBackUp;
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backup = backup << 8;
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backup += loBackUp;
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seq->curBUPtr[track] = seq->curLoc[track] - (backup + 4);
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seq->curBULen[track] = (u32)theLen;
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/* now get the byte */
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theByte = *seq->curBUPtr[track];
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seq->curBUPtr[track]++;
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seq->curBULen[track]--;
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}
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}
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}
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return theByte;
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}
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GLOBAL_ASM(
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glabel func00039b4c
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@ -921,7 +837,7 @@ glabel func00039b4c
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/* 39b54: afa40020 */ sw $a0,0x20($sp)
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/* 39b58: afa50024 */ sw $a1,0x24($sp)
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/* 39b5c: 8fa40020 */ lw $a0,0x20($sp)
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/* 39b60: 0c00e656 */ jal func00039958
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/* 39b60: 0c00e656 */ jal __getTrackByte
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/* 39b64: 8fa50024 */ lw $a1,0x24($sp)
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/* 39b68: afa2001c */ sw $v0,0x1c($sp)
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/* 39b6c: 8fae001c */ lw $t6,0x1c($sp)
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@ -933,7 +849,7 @@ glabel func00039b4c
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/* 39b84: afb9001c */ sw $t9,0x1c($sp)
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.L00039b88:
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/* 39b88: 8fa40020 */ lw $a0,0x20($sp)
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/* 39b8c: 0c00e656 */ jal func00039958
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/* 39b8c: 0c00e656 */ jal __getTrackByte
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/* 39b90: 8fa50024 */ lw $a1,0x24($sp)
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/* 39b94: afa20018 */ sw $v0,0x18($sp)
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/* 39b98: 8fa8001c */ lw $t0,0x1c($sp)
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