riscv
/
yosys
mirror of https://github.com/YosysHQ/yosys.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Use filter instead of index; support wide enable muxes

This commit is contained in:
Eddie Hung 2019-09-05 11:55:14 -07:00
parent fe5a1324c9
commit 7bd55f379c
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
passes/pmgen/xilinx_dsp.pmg
View File

@ -66,9 +66,11 @@ endcode
match ffAmux
if ffA
select ffAmux->type.in($mux)
filter GetSize(port(ffAmux, \Y)) >= GetSize(sigA)
slice offset GetSize(port(ffAmux, \Y))
filter offset+GetSize(sigA) <= GetSize(port(ffAmux, \Y)) && port(ffAmux, \Y).extract(offset, GetSize(sigA)) == sigA
choice <IdString> AB {\A, \B}
index <SigSpec> port(ffAmux, \Y) === sigA
index <SigSpec> port(ffAmux, AB) === sigffAmux
filter offset+GetSize(sigffAmux) <= GetSize(port(ffAmux, \Y)) && port(ffAmux, AB).extract(offset, GetSize(sigffAmux)) == sigffAmux
set ffAmuxAB AB
semioptional
endmatch
@ -105,9 +107,11 @@ endcode
match ffBmux
if ffB
select ffBmux->type.in($mux)
filter GetSize(port(ffBmux, \Y)) >= GetSize(sigB)
slice offset GetSize(port(ffBmux, \Y))
filter offset+GetSize(sigB) <= GetSize(port(ffBmux, \Y)) && port(ffBmux, \Y).extract(offset, GetSize(sigB)) == sigB
choice <IdString> AB {\A, \B}
index <SigSpec> port(ffBmux, \Y) === sigB
index <SigSpec> port(ffBmux, AB) === sigffBmux
filter offset+GetSize(sigffBmux) <= GetSize(port(ffBmux, \Y)) && port(ffBmux, AB).extract(offset, GetSize(sigffBmux)) == sigffBmux
set ffBmuxAB AB
semioptional
endmatch