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XLEN-ify maddedu
author
Jacob Lifshay
<programmerjake@gmail.com>
Fri, 11 Nov 2022 08:49:52 +0000
(
00:49
-0800)
committer
Jacob Lifshay
<programmerjake@gmail.com>
Fri, 11 Nov 2022 08:49:52 +0000
(
00:49
-0800)
openpower/isa/svfixedarith.mdwn
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diff --git
a/openpower/isa/svfixedarith.mdwn
b/openpower/isa/svfixedarith.mdwn
index 02bb5d62ce4c8ea985ca5741abd4590f686e6133..c7050133f2eae8c4d9d8f864a07621f046dc2158 100644
(file)
--- a/
openpower/isa/svfixedarith.mdwn
+++ b/
openpower/isa/svfixedarith.mdwn
@@
-9,10
+9,10
@@
Pseudo-code:
<!-- SVP64: RA,RB,RC,RT have EXTRA2, RS as below
<!-- bit 8 of EXTRA is set : RS.[s|v]=RT.[s|v]+MAXVL
<!-- bit 8 of EXTRA is clear: RS.[s|v]=RC.[s|v]
- prod[0:
127
] <- (RA) * (RB)
- sum[0:
127] <- ([0] * 64
|| (RC)) + prod
- RT <- sum[
64:127
]
- RS <- sum[0:
63
]
+ prod[0:
2*XLEN-1
] <- (RA) * (RB)
+ sum[0:
2*XLEN-1] <- ([0] * XLEN
|| (RC)) + prod
+ RT <- sum[
XLEN:2*XLEN-1
]
+ RS <- sum[0:
XLEN-1
]
Special Registers Altered: