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https://github.com/perfect-dark-pc-port/perfect_dark.git
synced 2026-10-23 15:52:41 +02:00
Decompile cdFindGroundInIntTile
This commit is contained in:
Ryan Dwyer committed
1 parent
55d9379fb2
commit
1394962ce2
1 file changed
+31
-123
+31
-123
@@ -593,130 +593,38 @@ f32 cdFindGroundInTileType0AtVertex1(struct geotilei *tile, f32 x, f32 z)
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}
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#endif
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GLOBAL_ASM(
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glabel cdFindGroundInIntTile
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/* 25f90: 27bdffd8 */ addiu $sp,$sp,-40
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/* 25f94: f7b40010 */ sdc1 $f20,0x10($sp)
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/* 25f98: 4485a000 */ mtc1 $a1,$f20
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/* 25f9c: afbf0024 */ sw $ra,0x24($sp)
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/* 25fa0: f7b60018 */ sdc1 $f22,0x18($sp)
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/* 25fa4: 90850001 */ lbu $a1,0x1($a0)
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/* 25fa8: 4486b000 */ mtc1 $a2,$f22
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/* 25fac: 24070001 */ addiu $a3,$zero,0x1
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/* 25fb0: 28a10004 */ slti $at,$a1,0x4
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/* 25fb4: 1420003c */ bnez $at,.L000260a8
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/* 25fb8: 2403ffff */ addiu $v1,$zero,-1
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/* 25fbc: 28a10002 */ slti $at,$a1,0x2
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/* 25fc0: 14200039 */ bnez $at,.L000260a8
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/* 25fc4: 00077880 */ sll $t7,$a3,0x2
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/* 25fc8: 848e0012 */ lh $t6,0x12($a0)
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/* 25fcc: 8498000e */ lh $t8,0xe($a0)
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/* 25fd0: 01e77823 */ subu $t7,$t7,$a3
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/* 25fd4: 448e2000 */ mtc1 $t6,$f4
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/* 25fd8: 44983000 */ mtc1 $t8,$f6
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/* 25fdc: 000f7840 */ sll $t7,$t7,0x1
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/* 25fe0: 44807000 */ mtc1 $zero,$f14
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/* 25fe4: 008f1021 */ addu $v0,$a0,$t7
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/* 25fe8: 46802420 */ cvt.s.w $f16,$f4
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/* 25fec: 468034a0 */ cvt.s.w $f18,$f6
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.L00025ff0:
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/* 25ff0: 84590012 */ lh $t9,0x12($v0)
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/* 25ff4: 8448000e */ lh $t0,0xe($v0)
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/* 25ff8: 44994000 */ mtc1 $t9,$f8
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/* 25ffc: 44885000 */ mtc1 $t0,$f10
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/* 26000: 46804020 */ cvt.s.w $f0,$f8
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/* 26004: 468050a0 */ cvt.s.w $f2,$f10
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/* 26008: 46008101 */ sub.s $f4,$f16,$f0
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/* 2600c: 4602a181 */ sub.s $f6,$f20,$f2
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/* 26010: 4600b281 */ sub.s $f10,$f22,$f0
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/* 26014: 46062202 */ mul.s $f8,$f4,$f6
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/* 26018: 46029101 */ sub.s $f4,$f18,$f2
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/* 2601c: 46045182 */ mul.s $f6,$f10,$f4
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/* 26020: 46064301 */ sub.s $f12,$f8,$f6
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/* 26024: 460e6032 */ c.eq.s $f12,$f14
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/* 26028: 00000000 */ nop
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/* 2602c: 4503001b */ bc1tl .L0002609c
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/* 26030: 24e70001 */ addiu $a3,$a3,0x1
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/* 26034: 04610008 */ bgez $v1,.L00026058
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/* 26038: 00000000 */ nop
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/* 2603c: 460c703c */ c.lt.s $f14,$f12
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/* 26040: 00001825 */ or $v1,$zero,$zero
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/* 26044: 45020015 */ bc1fl .L0002609c
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/* 26048: 24e70001 */ addiu $a3,$a3,0x1
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/* 2604c: 24030001 */ addiu $v1,$zero,0x1
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/* 26050: 10000012 */ b .L0002609c
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/* 26054: 24e70001 */ addiu $a3,$a3,0x1
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.L00026058:
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/* 26058: 10600007 */ beqz $v1,.L00026078
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/* 2605c: 00000000 */ nop
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/* 26060: 460e603c */ c.lt.s $f12,$f14
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/* 26064: 00000000 */ nop
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/* 26068: 45000003 */ bc1f .L00026078
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/* 2606c: 00000000 */ nop
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/* 26070: 1000000d */ b .L000260a8
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/* 26074: 24e7ffff */ addiu $a3,$a3,-1
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.L00026078:
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/* 26078: 54600008 */ bnezl $v1,.L0002609c
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/* 2607c: 24e70001 */ addiu $a3,$a3,0x1
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/* 26080: 460c703c */ c.lt.s $f14,$f12
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/* 26084: 00000000 */ nop
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/* 26088: 45020004 */ bc1fl .L0002609c
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/* 2608c: 24e70001 */ addiu $a3,$a3,0x1
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/* 26090: 10000005 */ b .L000260a8
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/* 26094: 24e7ffff */ addiu $a3,$a3,-1
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/* 26098: 24e70001 */ addiu $a3,$a3,0x1
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.L0002609c:
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/* 2609c: 00e5082a */ slt $at,$a3,$a1
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/* 260a0: 1420ffd3 */ bnez $at,.L00025ff0
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/* 260a4: 24420006 */ addiu $v0,$v0,0x6
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.L000260a8:
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/* 260a8: 4405a000 */ mfc1 $a1,$f20
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/* 260ac: 4406b000 */ mfc1 $a2,$f22
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/* 260b0: 0c00971d */ jal cdFindGroundInIntTileAtVertex
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/* 260b4: 00000000 */ nop
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/* 260b8: 8fbf0024 */ lw $ra,0x24($sp)
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/* 260bc: d7b40010 */ ldc1 $f20,0x10($sp)
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/* 260c0: d7b60018 */ ldc1 $f22,0x18($sp)
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/* 260c4: 03e00008 */ jr $ra
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/* 260c8: 27bd0028 */ addiu $sp,$sp,0x28
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);
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f32 cdFindGroundInIntTile(struct geotilei *tile, f32 x, f32 z)
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{
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s32 i = 1;
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s32 ival = -1;
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struct geotilei *tile2 = tile;
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// Mismatch: regalloc, and operators for second mult are swapped
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//f32 cdFindGroundInIntTile(struct geotilei *tile, f32 x, f32 z)
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//{
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// s32 i = 1;
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// s32 ival = -1;
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// f32 tmpx;
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// f32 tmpz;
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// f32 fval;
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//
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// if (tile->header.numvertices >= 4) {
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// while (i < tile->header.numvertices) { \
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// tmpz = tile->vertices[i][2];
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// tmpx = tile->vertices[i][0];
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//
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// fval =
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// (tile->vertices[0][2] - tmpz) * (x - tmpx) -
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// (tile->vertices[0][0] - tmpx) * (z - tmpz);
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//
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// if (fval != 0) {
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// if (ival < 0) {
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// ival = (fval > 0);
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// } else if (ival != 0 && fval < 0) {
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// i--;
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// break;
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// } else if (ival == 0 && fval > 0) {
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// i--;
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// break;
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// }
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// }
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//
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// i++;
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// }
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// }
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//
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// return cdFindGroundInIntTileAtVertex(tile, x, z, i);
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//}
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if (tile->header.numvertices >= 4) {
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while (i < tile->header.numvertices) {
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f32 tmpz = tile2->vertices[i][2];
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f32 tmpx = tile2->vertices[i][0];
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f32 fval = ((tile->vertices[0][2] - tmpz) * (x - tmpx))
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- ((tile2->vertices[0][0] - tmpx) * (0, z - tmpz));
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if (fval != 0) {
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if (ival < 0) {
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ival = (fval > 0);
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} else if (ival != 0 && fval < 0) {
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i--;
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break;
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} else if (ival == 0 && fval > 0) {
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i--;
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break;
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}
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}
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i++;
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}
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}
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return cdFindGroundInIntTileAtVertex(tile, x, z, i);
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}
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f32 cdFindGroundInFltTile(struct geotilef *tile, f32 x, f32 z)
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{
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