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authorAlex Deucher <[email protected]>2010-08-19 12:06:20 -0400
committerAlex Deucher <[email protected]>2010-08-19 12:06:20 -0400
commit076c53879b90855ecf38602584f22e4ab6db7569 (patch)
tree893120ffe32dee2b8465a9278ce91032c1aefd7a /src/gallium/drivers
parentc54dea66fd86f6000e334c703ea4890179c39c81 (diff)
r600g: update comments about ALU src operands
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/r600/r600_shader.c10
-rw-r--r--src/gallium/drivers/r600/r600_sq.h4
2 files changed, 12 insertions, 2 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 4d390f9f62e..455730320e4 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -362,9 +362,15 @@ int r600_shader_from_tgsi(const struct tgsi_token *tokens, struct r600_shader *s
shader->processor_type = ctx.type;
/* register allocations */
- /* Values [0,127] correspond to GPR[0..127].
- * Values [256,511] correspond to cfile constants c[0..255].
+ /* Values [0,127] correspond to GPR[0..127].
+ * Values [128,159] correspond to constant buffer bank 0
+ * Values [160,191] correspond to constant buffer bank 1
+ * Values [256,511] correspond to cfile constants c[0..255].
* Other special values are shown in the list below.
+ * 244 ALU_SRC_1_DBL_L: special constant 1.0 double-float, LSW. (RV670+)
+ * 245 ALU_SRC_1_DBL_M: special constant 1.0 double-float, MSW. (RV670+)
+ * 246 ALU_SRC_0_5_DBL_L: special constant 0.5 double-float, LSW. (RV670+)
+ * 247 ALU_SRC_0_5_DBL_M: special constant 0.5 double-float, MSW. (RV670+)
* 248 SQ_ALU_SRC_0: special constant 0.0.
* 249 SQ_ALU_SRC_1: special constant 1.0 float.
* 250 SQ_ALU_SRC_1_INT: special constant 1 integer.
diff --git a/src/gallium/drivers/r600/r600_sq.h b/src/gallium/drivers/r600/r600_sq.h
index da717783aab..819624e689b 100644
--- a/src/gallium/drivers/r600/r600_sq.h
+++ b/src/gallium/drivers/r600/r600_sq.h
@@ -584,6 +584,10 @@
#define C_SQ_TEX_WORD2_SRC_SEL_W 0x1FFFFFFF
/*
+ * 244 ALU_SRC_1_DBL_L: special constant 1.0 double-float, LSW. (RV670+)
+ * 245 ALU_SRC_1_DBL_M: special constant 1.0 double-float, MSW. (RV670+)
+ * 246 ALU_SRC_0_5_DBL_L: special constant 0.5 double-float, LSW. (RV670+)
+ * 247 ALU_SRC_0_5_DBL_M: special constant 0.5 double-float, MSW. (RV670+)
* 248 SQ_ALU_SRC_0: special constant 0.0.
* 249 SQ_ALU_SRC_1: special constant 1.0 float.
* 250 SQ_ALU_SRC_1_INT: special constant 1 integer.