mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-08-10 05:00:52 +00:00
Code Activity

Add ice40_wrapcarry pass, rename $__ICE40_FULL_ADDER -> CARRY_WRAPPER

Browse source
This commit is contained in:
Eddie Hung 2019-08-07 16:27:24 -07:00
parent cc331cf70d
commit 675c1d4218
6 changed files with 128 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

11
passes/pmgen/ice40_wrapcarry.pmg Normal file
View file

@ -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