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| author | Eddie Hung <eddie@fpgeh.com> | 2019-08-07 16:27:24 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-08-07 16:29:38 -0700 |
| commit | 675c1d42182b871ff4706b992eb005ed9d3d6f02 (patch) | |
| tree | e8902f35fba57c7d22af04907bef7dd1a926c006 /passes/pmgen/ice40_wrapcarry.pmg | |
| parent | cc331cf70d9e9f7095e335fc217fd3dbbbe92a93 (diff) | |
| download | yosys-675c1d42182b871ff4706b992eb005ed9d3d6f02.tar.gz yosys-675c1d42182b871ff4706b992eb005ed9d3d6f02.tar.bz2 yosys-675c1d42182b871ff4706b992eb005ed9d3d6f02.zip | |
Add ice40_wrapcarry pass, rename $__ICE40_FULL_ADDER -> CARRY_WRAPPER
Diffstat (limited to 'passes/pmgen/ice40_wrapcarry.pmg')
| -rw-r--r-- | passes/pmgen/ice40_wrapcarry.pmg | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/passes/pmgen/ice40_wrapcarry.pmg b/passes/pmgen/ice40_wrapcarry.pmg new file mode 100644 index 000000000..9e64c7467 --- /dev/null +++ b/passes/pmgen/ice40_wrapcarry.pmg @@ -0,0 +1,11 @@ +pattern ice40_wrapcarry + +match carry + select carry->type.in(\SB_CARRY) +endmatch + +match lut + select lut->type.in(\SB_LUT4) + index <SigSpec> port(lut, \I1) === port(carry, \I0) + index <SigSpec> port(lut, \I2) === port(carry, \I1) +endmatch |