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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4358 | Serge | 1 | /* |
| 2 | * Clip testing in SPARC assembly |
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| 3 | */ |
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| 4 | |||
| 5 | #if __arch64__ |
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| 6 | #define LDPTR ldx |
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| 7 | #define V4F_DATA 0x00 |
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| 8 | #define V4F_START 0x08 |
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| 9 | #define V4F_COUNT 0x10 |
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| 10 | #define V4F_STRIDE 0x14 |
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| 11 | #define V4F_SIZE 0x18 |
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| 12 | #define V4F_FLAGS 0x1c |
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| 13 | #else |
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| 14 | #define LDPTR ld |
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| 15 | #define V4F_DATA 0x00 |
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| 16 | #define V4F_START 0x04 |
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| 17 | #define V4F_COUNT 0x08 |
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| 18 | #define V4F_STRIDE 0x0c |
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| 19 | #define V4F_SIZE 0x10 |
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| 20 | #define V4F_FLAGS 0x14 |
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| 21 | #endif |
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| 22 | |||
| 23 | #define VEC_SIZE_1 1 |
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| 24 | #define VEC_SIZE_2 3 |
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| 25 | #define VEC_SIZE_3 7 |
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| 26 | #define VEC_SIZE_4 15 |
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| 27 | |||
| 28 | .register %g2, #scratch |
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| 29 | .register %g3, #scratch |
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| 30 | |||
| 31 | .text |
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| 32 | .align 64 |
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| 33 | |||
| 34 | one_dot_zero: |
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| 35 | .word 0x3f800000 /* 1.0f */ |
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| 36 | |||
| 37 | /* This trick is shamelessly stolen from the x86 |
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| 38 | * Mesa asm. Very clever, and we can do it too |
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| 39 | * since we have the necessary add with carry |
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| 40 | * instructions on Sparc. |
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| 41 | */ |
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| 42 | clip_table: |
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| 43 | .byte 0, 1, 0, 2, 4, 5, 4, 6 |
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| 44 | .byte 0, 1, 0, 2, 8, 9, 8, 10 |
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| 45 | .byte 32, 33, 32, 34, 36, 37, 36, 38 |
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| 46 | .byte 32, 33, 32, 34, 40, 41, 40, 42 |
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| 47 | .byte 0, 1, 0, 2, 4, 5, 4, 6 |
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| 48 | .byte 0, 1, 0, 2, 8, 9, 8, 10 |
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| 49 | .byte 16, 17, 16, 18, 20, 21, 20, 22 |
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| 50 | .byte 16, 17, 16, 18, 24, 25, 24, 26 |
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| 51 | .byte 63, 61, 63, 62, 55, 53, 55, 54 |
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| 52 | .byte 63, 61, 63, 62, 59, 57, 59, 58 |
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| 53 | .byte 47, 45, 47, 46, 39, 37, 39, 38 |
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| 54 | .byte 47, 45, 47, 46, 43, 41, 43, 42 |
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| 55 | .byte 63, 61, 63, 62, 55, 53, 55, 54 |
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| 56 | .byte 63, 61, 63, 62, 59, 57, 59, 58 |
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| 57 | .byte 31, 29, 31, 30, 23, 21, 23, 22 |
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| 58 | .byte 31, 29, 31, 30, 27, 25, 27, 26 |
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| 59 | |||
| 60 | /* GLvector4f *clip_vec, GLvector4f *proj_vec, |
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| 61 | GLubyte clipMask[], GLubyte *orMask, GLubyte *andMask, |
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| 62 | GLboolean viewport_z_enable */ |
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| 63 | |||
| 64 | .align 64 |
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| 65 | __pc_tramp: |
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| 66 | retl |
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| 67 | nop |
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| 68 | |||
| 69 | .globl _mesa_sparc_cliptest_points4 |
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| 70 | _mesa_sparc_cliptest_points4: |
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| 71 | save %sp, -64, %sp |
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| 72 | call __pc_tramp |
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| 73 | sub %o7, (. - one_dot_zero - 4), %g1 |
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| 74 | ld [%g1 + 0x0], %f4 |
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| 75 | add %g1, 0x4, %g1 |
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| 76 | |||
| 77 | ld [%i0 + V4F_STRIDE], %l1 |
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| 78 | ld [%i0 + V4F_COUNT], %l3 |
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| 79 | LDPTR [%i0 + V4F_START], %i0 |
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| 80 | LDPTR [%i1 + V4F_START], %i5 |
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| 81 | ldub [%i3], %g2 |
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| 82 | ldub [%i4], %g3 |
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| 83 | sll %g3, 8, %g3 |
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| 84 | or %g2, %g3, %g2 |
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| 85 | |||
| 86 | ld [%i1 + V4F_FLAGS], %g3 |
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| 87 | or %g3, VEC_SIZE_4, %g3 |
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| 88 | st %g3, [%i1 + V4F_FLAGS] |
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| 89 | mov 3, %g3 |
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| 90 | st %g3, [%i1 + V4F_SIZE] |
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| 91 | st %l3, [%i1 + V4F_COUNT] |
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| 92 | clr %l2 |
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| 93 | clr %l0 |
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| 94 | |||
| 95 | /* l0: i |
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| 96 | * l3: count |
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| 97 | * l1: stride |
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| 98 | * l2: c |
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| 99 | * g2: (tmpAndMask << 8) | tmpOrMask |
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| 100 | * g1: clip_table |
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| 101 | * i0: from[stride][i] |
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| 102 | * i2: clipMask |
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| 103 | * i5: vProj[4][i] |
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| 104 | */ |
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| 105 | |||
| 106 | 1: ld [%i0 + 0x0c], %f3 ! LSU Group |
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| 107 | ld [%i0 + 0x0c], %g5 ! LSU Group |
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| 108 | ld [%i0 + 0x08], %g4 ! LSU Group |
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| 109 | fdivs %f4, %f3, %f8 ! FGM |
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| 110 | addcc %g5, %g5, %g5 ! IEU1 Group |
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| 111 | addx %g0, 0x0, %g3 ! IEU1 Group |
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| 112 | addcc %g4, %g4, %g4 ! IEU1 Group |
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| 113 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 114 | subcc %g5, %g4, %g0 ! IEU1 Group |
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| 115 | ld [%i0 + 0x04], %g4 ! LSU Group |
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| 116 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 117 | addcc %g4, %g4, %g4 ! IEU1 Group |
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| 118 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 119 | subcc %g5, %g4, %g0 ! IEU1 Group |
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| 120 | ld [%i0 + 0x00], %g4 ! LSU Group |
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| 121 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 122 | addcc %g4, %g4, %g4 ! IEU1 Group |
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| 123 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 124 | subcc %g5, %g4, %g0 ! IEU1 Group |
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| 125 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 126 | ldub [%g1 + %g3], %g3 ! LSU Group |
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| 127 | cmp %g3, 0 ! IEU1 Group, stall |
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| 128 | be 2f ! CTI |
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| 129 | stb %g3, [%i2] ! LSU |
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| 130 | sll %g3, 8, %g4 ! IEU1 Group |
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| 131 | add %l2, 1, %l2 ! IEU0 |
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| 132 | st %g0, [%i5 + 0x00] ! LSU |
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| 133 | or %g4, 0xff, %g4 ! IEU0 Group |
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| 134 | or %g2, %g3, %g2 ! IEU1 |
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| 135 | st %g0, [%i5 + 0x04] ! LSU |
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| 136 | and %g2, %g4, %g2 ! IEU0 Group |
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| 137 | st %g0, [%i5 + 0x08] ! LSU |
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| 138 | b 3f ! CTI |
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| 139 | st %f4, [%i5 + 0x0c] ! LSU Group |
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| 140 | 2: ld [%i0 + 0x00], %f0 ! LSU Group |
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| 141 | ld [%i0 + 0x04], %f1 ! LSU Group |
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| 142 | ld [%i0 + 0x08], %f2 ! LSU Group |
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| 143 | fmuls %f0, %f8, %f0 ! FGM |
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| 144 | st %f0, [%i5 + 0x00] ! LSU Group |
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| 145 | fmuls %f1, %f8, %f1 ! FGM |
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| 146 | st %f1, [%i5 + 0x04] ! LSU Group |
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| 147 | fmuls %f2, %f8, %f2 ! FGM |
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| 148 | st %f2, [%i5 + 0x08] ! LSU Group |
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| 149 | st %f8, [%i5 + 0x0c] ! LSU Group |
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| 150 | 3: add %i5, 0x10, %i5 ! IEU1 |
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| 151 | add %l0, 1, %l0 ! IEU0 Group |
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| 152 | add %i2, 1, %i2 ! IEU0 Group |
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| 153 | cmp %l0, %l3 ! IEU1 Group |
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| 154 | bne 1b ! CTI |
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| 155 | add %i0, %l1, %i0 ! IEU0 Group |
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| 156 | stb %g2, [%i3] ! LSU |
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| 157 | srl %g2, 8, %g3 ! IEU0 Group |
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| 158 | cmp %l2, %l3 ! IEU1 Group |
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| 159 | bl,a 1f ! CTI |
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| 160 | clr %g3 ! IEU0 |
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| 161 | 1: stb %g3, [%i4] ! LSU Group |
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| 162 | ret ! CTI Group |
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| 163 | restore %i1, 0x0, %o0 |
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| 164 | |||
| 165 | .globl _mesa_sparc_cliptest_points4_np |
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| 166 | _mesa_sparc_cliptest_points4_np: |
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| 167 | save %sp, -64, %sp |
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| 168 | |||
| 169 | call __pc_tramp |
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| 170 | sub %o7, (. - one_dot_zero - 4), %g1 |
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| 171 | add %g1, 0x4, %g1 |
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| 172 | |||
| 173 | ld [%i0 + V4F_STRIDE], %l1 |
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| 174 | ld [%i0 + V4F_COUNT], %l3 |
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| 175 | LDPTR [%i0 + V4F_START], %i0 |
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| 176 | ldub [%i3], %g2 |
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| 177 | ldub [%i4], %g3 |
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| 178 | sll %g3, 8, %g3 |
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| 179 | or %g2, %g3, %g2 |
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| 180 | |||
| 181 | clr %l2 |
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| 182 | clr %l0 |
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| 183 | |||
| 184 | /* l0: i |
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| 185 | * l3: count |
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| 186 | * l1: stride |
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| 187 | * l2: c |
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| 188 | * g2: (tmpAndMask << 8) | tmpOrMask |
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| 189 | * g1: clip_table |
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| 190 | * i0: from[stride][i] |
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| 191 | * i2: clipMask |
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| 192 | */ |
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| 193 | |||
| 194 | 1: ld [%i0 + 0x0c], %g5 ! LSU Group |
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| 195 | ld [%i0 + 0x08], %g4 ! LSU Group |
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| 196 | addcc %g5, %g5, %g5 ! IEU1 Group |
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| 197 | addx %g0, 0x0, %g3 ! IEU1 Group |
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| 198 | addcc %g4, %g4, %g4 ! IEU1 Group |
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| 199 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 200 | subcc %g5, %g4, %g0 ! IEU1 Group |
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| 201 | ld [%i0 + 0x04], %g4 ! LSU Group |
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| 202 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 203 | addcc %g4, %g4, %g4 ! IEU1 Group |
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| 204 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 205 | subcc %g5, %g4, %g0 ! IEU1 Group |
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| 206 | ld [%i0 + 0x00], %g4 ! LSU Group |
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| 207 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 208 | addcc %g4, %g4, %g4 ! IEU1 Group |
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| 209 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 210 | subcc %g5, %g4, %g0 ! IEU1 Group |
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| 211 | addx %g3, %g3, %g3 ! IEU1 Group |
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| 212 | ldub [%g1 + %g3], %g3 ! LSU Group |
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| 213 | cmp %g3, 0 ! IEU1 Group, stall |
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| 214 | be 2f ! CTI |
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| 215 | stb %g3, [%i2] ! LSU |
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| 216 | sll %g3, 8, %g4 ! IEU1 Group |
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| 217 | add %l2, 1, %l2 ! IEU0 |
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| 218 | or %g4, 0xff, %g4 ! IEU0 Group |
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| 219 | or %g2, %g3, %g2 ! IEU1 |
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| 220 | and %g2, %g4, %g2 ! IEU0 Group |
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| 221 | 2: add %l0, 1, %l0 ! IEU0 Group |
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| 222 | add %i2, 1, %i2 ! IEU0 Group |
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| 223 | cmp %l0, %l3 ! IEU1 Group |
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| 224 | bne 1b ! CTI |
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| 225 | add %i0, %l1, %i0 ! IEU0 Group |
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| 226 | stb %g2, [%i3] ! LSU |
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| 227 | srl %g2, 8, %g3 ! IEU0 Group |
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| 228 | cmp %l2, %l3 ! IEU1 Group |
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| 229 | bl,a 1f ! CTI |
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| 230 | clr %g3 ! IEU0 |
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| 231 | 1: stb %g3, [%i4] ! LSU Group |
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| 232 | ret ! CTI Group |
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| 233 | restore %i1, 0x0, %o0 |