Module: Mesa Branch: master Commit: b724dd28e24ec1c38af1082f5e16cd9a12d1653d URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b724dd28e24ec1c38af1082f5e16cd9a12d1653d
Author: Michal Krol <[email protected]> Date: Thu Jul 30 10:12:09 2009 +0200 tgsi: Document LOOP/ENDLOOP instruction operation. --- .../auxiliary/tgsi/tgsi-instruction-set.txt | 20 ++++++++++++++++++-- 1 files changed, 18 insertions(+), 2 deletions(-) diff --git a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt index a3f4947..5f88cc2 100644 --- a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt +++ b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt @@ -667,7 +667,16 @@ TGSI Instruction Specification 1.9.8 LOOP - Loop - TBD + dst.x = floor(src.x) + dst.y = floor(src.y) + dst.z = floor(src.z) + + if (dst.y <= 0) + pc = [matching ENDLOOP] + 1 + endif + + Note: The destination must be a loop register. + The source must be a constant register. 1.9.9 REP - Repeat @@ -687,7 +696,14 @@ TGSI Instruction Specification 1.9.12 ENDLOOP - End Loop - TBD + dst.x = dst.x + dst.z + dst.y = dst.y - 1.0 + + if (dst.y > 0) + pc = [matching LOOP instruction] + 1 + endif + + Note: The destination must be a loop register. 1.9.13 ENDREP - End Repeat _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
