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-rw-r--r--nx-X11/extras/Mesa/src/mesa/sparc/clip.S243
1 files changed, 243 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/sparc/clip.S b/nx-X11/extras/Mesa/src/mesa/sparc/clip.S
new file mode 100644
index 000000000..58c228ed1
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/sparc/clip.S
@@ -0,0 +1,243 @@
+/*
+ * Clip testing in SPARC assembly
+ */
+
+#if __arch64__
+#define LDPTR ldx
+#define V4F_DATA 0x00
+#define V4F_START 0x08
+#define V4F_COUNT 0x10
+#define V4F_STRIDE 0x14
+#define V4F_SIZE 0x18
+#define V4F_FLAGS 0x1c
+#else
+#define LDPTR ld
+#define V4F_DATA 0x00
+#define V4F_START 0x04
+#define V4F_COUNT 0x08
+#define V4F_STRIDE 0x0c
+#define V4F_SIZE 0x10
+#define V4F_FLAGS 0x14
+#endif
+
+#define VEC_SIZE_1 1
+#define VEC_SIZE_2 3
+#define VEC_SIZE_3 7
+#define VEC_SIZE_4 15
+
+#if defined(SVR4) || defined(__SVR4) || defined(__svr4__)
+ /* Solaris requires this for 64-bit. */
+ .register %g2, #scratch
+ .register %g3, #scratch
+ .register %g7, #scratch
+#endif
+
+ .text
+ .align 64
+
+one_dot_zero:
+ .word 0x3f800000 /* 1.0f */
+
+ /* This trick is shamelessly stolen from the x86
+ * Mesa asm. Very clever, and we can do it too
+ * since we have the necessary add with carry
+ * instructions on Sparc.
+ */
+clip_table:
+ .byte 0, 1, 0, 2, 4, 5, 4, 6
+ .byte 0, 1, 0, 2, 8, 9, 8, 10
+ .byte 32, 33, 32, 34, 36, 37, 36, 38
+ .byte 32, 33, 32, 34, 40, 41, 40, 42
+ .byte 0, 1, 0, 2, 4, 5, 4, 6
+ .byte 0, 1, 0, 2, 8, 9, 8, 10
+ .byte 16, 17, 16, 18, 20, 21, 20, 22
+ .byte 16, 17, 16, 18, 24, 25, 24, 26
+ .byte 63, 61, 63, 62, 55, 53, 55, 54
+ .byte 63, 61, 63, 62, 59, 57, 59, 58
+ .byte 47, 45, 47, 46, 39, 37, 39, 38
+ .byte 47, 45, 47, 46, 43, 41, 43, 42
+ .byte 63, 61, 63, 62, 55, 53, 55, 54
+ .byte 63, 61, 63, 62, 59, 57, 59, 58
+ .byte 31, 29, 31, 30, 23, 21, 23, 22
+ .byte 31, 29, 31, 30, 27, 25, 27, 26
+
+/* GLvector4f *clip_vec, GLvector4f *proj_vec,
+ GLubyte clipMask[], GLubyte *orMask, GLubyte *andMask */
+
+ .align 64
+__pc_tramp:
+ retl
+ nop
+
+ .globl _mesa_sparc_cliptest_points4
+_mesa_sparc_cliptest_points4:
+ save %sp, -64, %sp
+ call __pc_tramp
+ sub %o7, (. - one_dot_zero - 4), %g1
+ ld [%g1 + 0x0], %f4
+ add %g1, 0x4, %g1
+
+ ld [%i0 + V4F_STRIDE], %l1
+ ld [%i0 + V4F_COUNT], %g7
+ LDPTR [%i0 + V4F_START], %i0
+ LDPTR [%i1 + V4F_START], %i5
+ ldub [%i3], %g2
+ ldub [%i4], %g3
+ sll %g3, 8, %g3
+ or %g2, %g3, %g2
+
+ ld [%i1 + V4F_FLAGS], %g3
+ or %g3, VEC_SIZE_4, %g3
+ st %g3, [%i1 + V4F_FLAGS]
+ mov 3, %g3
+ st %g3, [%i1 + V4F_SIZE]
+ st %g7, [%i1 + V4F_COUNT]
+ clr %l2
+ clr %l0
+
+ /* l0: i
+ * g7: count
+ * l1: stride
+ * l2: c
+ * g2: (tmpAndMask << 8) | tmpOrMask
+ * g1: clip_table
+ * i0: from[stride][i]
+ * i2: clipMask
+ * i5: vProj[4][i]
+ */
+
+1: ld [%i0 + 0x0c], %f3 ! LSU Group
+ ld [%i0 + 0x0c], %g5 ! LSU Group
+ ld [%i0 + 0x08], %g4 ! LSU Group
+ fdivs %f4, %f3, %f8 ! FGM
+ addcc %g5, %g5, %g5 ! IEU1 Group
+ addx %g0, 0x0, %g3 ! IEU1 Group
+ addcc %g4, %g4, %g4 ! IEU1 Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ subcc %g5, %g4, %g0 ! IEU1 Group
+ ld [%i0 + 0x04], %g4 ! LSU Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ addcc %g4, %g4, %g4 ! IEU1 Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ subcc %g5, %g4, %g0 ! IEU1 Group
+ ld [%i0 + 0x00], %g4 ! LSU Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ addcc %g4, %g4, %g4 ! IEU1 Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ subcc %g5, %g4, %g0 ! IEU1 Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ ldub [%g1 + %g3], %g3 ! LSU Group
+ cmp %g3, 0 ! IEU1 Group, stall
+ be 2f ! CTI
+ stb %g3, [%i2] ! LSU
+ sll %g3, 8, %g4 ! IEU1 Group
+ add %l2, 1, %l2 ! IEU0
+ st %g0, [%i5 + 0x00] ! LSU
+ or %g4, 0xff, %g4 ! IEU0 Group
+ or %g2, %g3, %g2 ! IEU1
+ st %g0, [%i5 + 0x04] ! LSU
+ and %g2, %g4, %g2 ! IEU0 Group
+ st %g0, [%i5 + 0x08] ! LSU
+ b 3f ! CTI
+ st %f4, [%i5 + 0x0c] ! LSU Group
+2: ld [%i0 + 0x00], %f0 ! LSU Group
+ ld [%i0 + 0x04], %f1 ! LSU Group
+ ld [%i0 + 0x08], %f2 ! LSU Group
+ fmuls %f0, %f8, %f0 ! FGM
+ st %f0, [%i5 + 0x00] ! LSU Group
+ fmuls %f1, %f8, %f1 ! FGM
+ st %f1, [%i5 + 0x04] ! LSU Group
+ fmuls %f2, %f8, %f2 ! FGM
+ st %f2, [%i5 + 0x08] ! LSU Group
+ st %f8, [%i5 + 0x0c] ! LSU Group
+3: add %i5, 0x10, %i5 ! IEU1
+ add %l0, 1, %l0 ! IEU0 Group
+ add %i2, 1, %i2 ! IEU0 Group
+ cmp %l0, %g7 ! IEU1 Group
+ bne 1b ! CTI
+ add %i0, %l1, %i0 ! IEU0 Group
+ stb %g2, [%i3] ! LSU
+ srl %g2, 8, %g3 ! IEU0 Group
+ cmp %l2, %g7 ! IEU1 Group
+ bl,a 1f ! CTI
+ clr %g3 ! IEU0
+1: stb %g3, [%i4] ! LSU Group
+ ret ! CTI Group
+ restore %i1, 0x0, %o0
+
+ .globl _mesa_sparc_cliptest_points4_np
+_mesa_sparc_cliptest_points4_np:
+ save %sp, -64, %sp
+
+ call __pc_tramp
+ sub %o7, (. - one_dot_zero - 4), %g1
+ add %g1, 0x4, %g1
+
+ ld [%i0 + V4F_STRIDE], %l1
+ ld [%i0 + V4F_COUNT], %g7
+ LDPTR [%i0 + V4F_START], %i0
+ LDPTR [%i1 + V4F_START], %i5
+ ldub [%i3], %g2
+ ldub [%i4], %g3
+ sll %g3, 8, %g3
+ or %g2, %g3, %g2
+
+ ld [%i1 + V4F_FLAGS], %g3
+ or %g3, VEC_SIZE_4, %g3
+ st %g3, [%i1 + V4F_FLAGS]
+ mov 3, %g3
+ st %g3, [%i1 + V4F_SIZE]
+ st %g7, [%i1 + V4F_COUNT]
+ clr %l2
+ clr %l0
+
+ /* l0: i
+ * g7: count
+ * l1: stride
+ * l2: c
+ * g2: (tmpAndMask << 8) | tmpOrMask
+ * g1: clip_table
+ * i0: from[stride][i]
+ * i2: clipMask
+ */
+
+1: ld [%i0 + 0x0c], %g5 ! LSU Group
+ ld [%i0 + 0x08], %g4 ! LSU Group
+ addcc %g5, %g5, %g5 ! IEU1 Group
+ addx %g0, 0x0, %g3 ! IEU1 Group
+ addcc %g4, %g4, %g4 ! IEU1 Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ subcc %g5, %g4, %g0 ! IEU1 Group
+ ld [%i0 + 0x04], %g4 ! LSU Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ addcc %g4, %g4, %g4 ! IEU1 Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ subcc %g5, %g4, %g0 ! IEU1 Group
+ ld [%i0 + 0x00], %g4 ! LSU Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ addcc %g4, %g4, %g4 ! IEU1 Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ subcc %g5, %g4, %g0 ! IEU1 Group
+ addx %g3, %g3, %g3 ! IEU1 Group
+ ldub [%g1 + %g3], %g3 ! LSU Group
+ cmp %g3, 0 ! IEU1 Group, stall
+ be 2f ! CTI
+ stb %g3, [%i2] ! LSU
+ sll %g3, 8, %g4 ! IEU1 Group
+ add %l2, 1, %l2 ! IEU0
+ or %g4, 0xff, %g4 ! IEU0 Group
+ or %g2, %g3, %g2 ! IEU1
+ and %g2, %g4, %g2 ! IEU0 Group
+2: add %l0, 1, %l0 ! IEU0 Group
+ add %i2, 1, %i2 ! IEU0 Group
+ cmp %l0, %g7 ! IEU1 Group
+ bne 1b ! CTI
+ add %i0, %l1, %i0 ! IEU0 Group
+ stb %g2, [%i3] ! LSU
+ srl %g2, 8, %g3 ! IEU0 Group
+ cmp %l2, %g7 ! IEU1 Group
+ bl,a 1f ! CTI
+ clr %g3 ! IEU0
+1: stb %g3, [%i4] ! LSU Group
+ ret ! CTI Group
+ restore %i1, 0x0, %o0
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 01:37:13 +0000