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-rw-r--r--src/gallium/drivers/nv50/nv50_program.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index 1cb1ce74bd..4a838529de 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -1106,10 +1106,10 @@ convert_to_long(struct nv50_pc *pc, struct nv50_program_exec *e)
m = 0xffff7fff;
break;
case 0x8:
- /* INTERP */
- m = ~0x02000000;
- if (e->inst[0] & 0x02000000)
- q = 0x00020000;
+ /* INTERP (move centroid, perspective and flat bits) */
+ m = ~0x03000100;
+ q = (e->inst[0] & (3 << 24)) >> (24 - 16);
+ q |= (e->inst[0] & (1 << 8)) << (18 - 8);
break;
case 0x9:
/* RCP */