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According to MSDN, _db and _da are legit srcmods, identical to _dz and _dw.
authorRyan C. Gordon <icculus@icculus.org>
Wed, 18 Apr 2012 00:21:58 -0400
changeset 1096 b04fca1befb8
parent 1095 bc3d2c6e06cf
child 1097 cc3b4d123312
According to MSDN, _db and _da are legit srcmods, identical to _dz and _dw. Basically, it's to match rgba syntax, instead of xyzw.
mojoshader_assembler.c file | annotate | diff | comparison | revisions 
--- a/mojoshader_assembler.c	Wed Apr 18 00:19:32 2012 -0400
+++ b/mojoshader_assembler.c	Wed Apr 18 00:21:58 2012 -0400
@@ -678,8 +678,12 @@
             set_source_mod(ctx, negate, SRCMOD_X2, SRCMOD_X2NEGATE, &srcmod);
         else if (check_token_segment(ctx, "_dz"))
             set_source_mod(ctx, negate, SRCMOD_DZ, SRCMOD_NONE, &srcmod);
+        else if (check_token_segment(ctx, "_db"))
+            set_source_mod(ctx, negate, SRCMOD_DZ, SRCMOD_NONE, &srcmod);
         else if (check_token_segment(ctx, "_dw"))
             set_source_mod(ctx, negate, SRCMOD_DW, SRCMOD_NONE, &srcmod);
+        else if (check_token_segment(ctx, "_da"))
+            set_source_mod(ctx, negate, SRCMOD_DW, SRCMOD_NONE, &srcmod);
         else if (check_token_segment(ctx, "_abs"))
             set_source_mod(ctx, negate, SRCMOD_ABS, SRCMOD_ABSNEGATE, &srcmod);
         else
icculus/mojoshader