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Check adder is <= 48 bits before packing

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This commit is contained in:
Eddie Hung 2019-09-06 10:35:06 -07:00
parent 91f68c4de2
commit cdc1e1f5c2
1 changed files with 5 additions and 4 deletions
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9
passes/pmgen/xilinx_dsp.pmg
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@ -83,7 +83,7 @@ match ffAmux
filter offset+GetSize(sigffAmuxY) <= GetSize(port(ffAmux, \Y)) && port(ffAmux, BA).extract(offset, GetSize(sigffAmuxY)) == sigffAmuxY
define <bool> pol (BA == \B)
set ffAenpol pol
semioptional
optional
endmatch
match ffB
@ -129,7 +129,7 @@ match ffBmux
filter offset+GetSize(sigffBmuxY) <= GetSize(port(ffBmux, \Y)) && port(ffBmux, BA).extract(offset, GetSize(sigffBmuxY)) == sigffBmuxY
define <bool> pol (BA == \B)
set ffBenpol pol
semioptional
optional
endmatch
match ffMmux
@ -180,10 +180,8 @@ code clock sigM sigP
reject;
SigBit c = port(ffM, \CLK).as_bit();
if (clock != SigBit() && c != clock)
reject;
clock = c;
}
// Cannot have ffMmux enable mux without ffM
@ -198,6 +196,8 @@ match postAdd
if port(dsp, \OPMODE).extract(4,3).is_fully_zero()
select postAdd->type.in($add)
select GetSize(port(postAdd, \Y)) <= 48
select nusers(port(postAdd, \Y)) == 2
choice <IdString> AB {\A, \B}
select nusers(port(postAdd, AB)) <= 3
filter ffMmux || nusers(port(postAdd, AB)) == 2
@ -256,6 +256,7 @@ match ffP
select ffP->type.in($dff)
// DSP48E1 does not support clock inversion
select param(ffP, \CLK_POLARITY).as_bool()
select nusers(port(ffP, \D)) == 2
filter GetSize(port(ffP, \D)) >= GetSize(sigP)
slice offset GetSize(port(ffP, \D))
filter offset+GetSize(sigP) <= GetSize(port(ffP, \D)) && port(ffP, \D).extract(offset, GetSize(sigP)) == sigP