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Tweaks for Tharo

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Sauraen
2023-02-13 21:20:39 -08:00
parent 234e220f57
commit cab488f32f
1 changed files with 11 additions and 11 deletions
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22
f3dex2.s
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@@ -212,14 +212,14 @@ clipRatio: // This is an array of 6 doublewords
// vne xxx, $v31, $v31[3h] = 11101110 in lighting
// veq xxx, $v31, $v31[3h] = 00010001 in lighting
v31Value:
.dh 0xFFFF // -1; used in init, clipping
.dh 0x0004 // 4; used in clipping, vtx write
.dh 0x0008 // 8; old ucode only: used in tri write
.dh 0x7F00 // 32512; used in vtx write and pre-jump instrs to there, also 0x0004 put here during point lighting
.dh 0xFFFC // -4; used in clipping, vtx write
.dh 0x4000 // 16384; used in tri write, texgen
.dh -1 // used in init, clipping
.dh 4 // used in clipping, vtx write
.dh 8 // old ucode only: used in tri write
.dh 0x7F00 // used in vtx write and pre-jump instrs to there, also 4 put here during point lighting
.dh -4 // used in clipping, vtx write
.dh 0x4000 // used in tri write, texgen
.dh vertexBuffer // 0x420; used in tri write
.dh 0x7FFF // 32767; used in vtx write, tri write, lighting, point lighting
.dh 0x7FFF // used in vtx write, tri write, lighting, point lighting
// 0x1C0: constants for register $v30
.align 0x10 // loaded with lqv
@@ -231,14 +231,14 @@ v30Value:
.if (UCODE_IS_206_OR_OLDER)
.dh 0x01CC // used in tri write, vcr?
.dh 0x0200 // not used!
.dh 0xFFF0 // used in tri write, some signed multiplier (-16)
.dh -16 // used in tri write, some signed multiplier
.dh 0x0010 // used in tri write, some accumulator init value
.dh 0x0020 // used in tri write, both signed and unsigned multipliers
.dh 0x0100 // used in tri write, vertex color >>= 8; also in lighting
.else
.dh 0x1000 // used in tri write, some multiplier
.dh 0x0100 // used in tri write, vertex color >>= 8 and vcr?; also in lighting and point lighting
.dh 0xFFF0 // used in tri write, some signed multiplier (-16)
.dh -16 // used in tri write, some signed multiplier
.dh 0xFFF8 // used in tri write, mask away lower ST bits?
.dh 0x0010 // used in tri write, some accumulator init value; value moved to elem 7 for point lighting
.dh 0x0020 // used in tri write, both signed and unsigned multipliers; value moved from elem 6 from point lighting
@@ -249,7 +249,7 @@ linearGenerateCoefficients:
.dh 0xC000
.dh 0x44D3
.dh 0x6CB3
.dh 0x0002
.dh 2
// 0x01D8
.db 0x00 // Padding to allow mvpValid to be written to as a 32-bit word
@@ -1061,7 +1061,7 @@ clipping_skipswap23: // After possible swap, $19 = vtx not meeting clip cond / o
vmadn $v10, $v6, $v3 // frac: - vtx off screen * clip ratio
vmadh $v11, $v7, $v3 // int: - vtx off screen * clip ratio 11:10
vaddc $v8, $v8, $v8[0q] // frac: y += x, w += z, vtx on screen only
lqv $v25[0], (linearGenerateCoefficients)($zero) // Used just to load the value 0x0002
lqv $v25[0], (linearGenerateCoefficients)($zero) // Used just to load the value 2
vadd $v9, $v9, $v9[0q] // int: y += x, w += z, vtx on screen only
vaddc $v10, $v10, $v10[0q] // frac: y += x, w += z, vtx on screen - vtx off screen
vadd $v11, $v11, $v11[0q] // int: y += x, w += z, vtx on screen - vtx off screen