diff options
| author | Homer Hsing <homer.xing@intel.com> | 2012-09-18 13:25:53 +0800 |
|---|---|---|
| committer | Xiang, Haihao <haihao.xiang@intel.com> | 2012-09-26 23:27:00 -0400 |
| commit | 8c59c185c22ec52a27de4324882a286df116d8d1 (patch) | |
| tree | c093eada8bafcf98accf6553102393349c49ba10 | |
| parent | 6608fc4de927d8a940625d07522f805c47552a21 (diff) | |
Explain the difference between binaryinstruction and binaryaccinstruction
Developers may add new instructions in wrong place in the future
if they don't know the difference between binaryinstruction and
binaryaccinstruction.
| -rw-r--r-- | src/gram.y | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -367,6 +367,8 @@ instrseq: instrseq pragma ; /* 1.4.1: Instruction groups */ +// binaryinstruction: Source operands cannot be accumulators +// binaryaccinstruction: Source operands can be accumulators instruction: unaryinstruction | binaryinstruction | binaryaccinstruction @@ -417,6 +419,7 @@ unaryop: MOV | FRC | RNDU | RNDD | RNDE | RNDZ | NOT | LZD | BFREV | CBIT | F16TO32 | F32TO16 | FBH | FBL ; +// Source operands cannot be accumulators binaryinstruction: predicate binaryop conditionalmodifier saturate execsize dst src srcimm instoptions @@ -454,6 +457,7 @@ binaryinstruction: binaryop: MUL | MAC | MACH | LINE | SAD2 | SADA2 | DP4 | DPH | DP3 | DP2 | SUBB ; +// Source operands can be accumulators binaryaccinstruction: predicate binaryaccop conditionalmodifier saturate execsize dst srcacc srcimm instoptions |