Difference between revisions of "Instruction Set/fmafn"
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(Created page with "{{DISPLAYTITLE:fmafn}} <div style="font-size:80%;line-height:90%;margin-bottom:2em">realizing exu stream [[Decode|exu block]...") |
(No difference) |
Revision as of 06:56, 2 October 2014
fused multiply-add or -add/subtract
operands: like Addf [ff:f]
encoding:
fmafn(f x)
,
exuArgs(op arg0, op arg1)
| Core | In Slots | Latencies |
|---|---|---|
| Silver | E0 E1 | w,w:w=6 wv,wv:wv=6 d,d:d=7 dv,dv:dv=7 q,q:q=8 qv,qv:qv=8 |
| Gold | E0 E1 E2 E3 | w,w:w=6 wv,wv:wv=6 d,d:d=7 dv,dv:dv=7 q,q:q=8 qv,qv:qv=8 |
fmafn(f x, f y, f z, f w) → f r0, f r1
operands: like Fmasf [ff:f]
encoding:
fmafn(f x, f y)
,
exuArgs(op arg0, op arg1)
| Core | In Slots | Latencies |
|---|---|---|
| Silver | E0 | w,w:w,w=6,6 wv,wv:wv,wv=6,6 d,d:d,d=7,7 dv,dv:dv,dv=7,7 q,q:q,q=8,8 qv,qv:qv,qv=8,8 |
| Gold | E0 E2 | w,w:w,w=6,6 wv,wv:wv,wv=6,6 d,d:d,d=7,7 dv,dv:dv,dv=7,7 q,q:q,q=8,8 qv,qv:qv,qv=8,8 |
