Hi,
just updated after reading Jos�'s mail about the MACH64_NATIVE_VTXMFT
and tried running some apps. q3demo and quake2 crashed with multi
textures enabled:
q3demo.x86: mach64_tris.c:518: mach64_draw_triangle: Assertion `vb == vbchk' failed.
I found the problem in the COPY_VERTEX macro. The movsl instruction
doesn't decrement %ecx when there is no rep prefix, so you have to
decrease afterwards. Here's the fix:
diff -u -r1.1.6.13.2.5.4.6 mach64_tris.c
--- mach64_tris.c 11 Jul 2002 23:23:03 -0000 1.1.6.13.2.5.4.6
+++ mach64_tris.c 12 Jul 2002 02:24:53 -0000
@@ -116,6 +116,7 @@
__asm__ __volatile__( "movsl ; movsl ; movsl" \
: "=c" (__s), "=D" (vb), "=S" (__p) \
: "0" (__s), "1" (vb), "2" (__p) ); \
+ __s -= 3; \
} \
*vb++ = ((__s - 1) << 16) | \
(ADRINDEX( MACH64_VERTEX_##n##_X_Y ) - (__s - 1) ); \
Bye,
Felix
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