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author
lkcl
<lkcl@web>
Sun, 24 Jan 2021 13:18:38 +0000
(13:18 +0000)
committer
IkiWiki
<ikiwiki.info>
Sun, 24 Jan 2021 13:18:38 +0000
(13:18 +0000)
openpower/sv/ldst.mdwn
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diff --git
a/openpower/sv/ldst.mdwn
b/openpower/sv/ldst.mdwn
index ddf350def87040caabad9d10878faf64a66f40a7..5f554a59f9d8ac13dd6523aec3cb963d8f68c59f 100644
(file)
--- a/
openpower/sv/ldst.mdwn
+++ b/
openpower/sv/ldst.mdwn
@@
-291,12
+291,17
@@
LD/ST, will give that same capability, with far more flexibility.
permutations of vector selection, to identify above asm-syntax:
permutations of vector selection, to identify above asm-syntax:
- imm(RA) RT.v RA.v no
stride allow
ed
+ imm(RA) RT.v RA.v no
nstrid
ed
sv.ld r#.v, ofst(r#2.v) -> r#2 is a vector of addresses
sv.ld r#.v, ofst(r#2.v) -> r#2 is a vector of addresses
- imm(RA) RT.s RA.v no
stride allow
ed
+ imm(RA) RT.s RA.v no
nstrid
ed
sv.ld r#, ofst(r#2.v) -> r#2 is a vector of addresses
sv.ld r#, ofst(r#2.v) -> r#2 is a vector of addresses
- imm(RA) RT.v RA.s
stride-select needed
+ imm(RA) RT.v RA.s
fixed stride: unit or element
sv.ld r#.v, ofst(r#2).v -> the whole vector is at ofst+r#2
sv.ld r#.v, ofst(r#2).v -> the whole vector is at ofst+r#2
+ mem 0 1 2
+ destreg r# r#+1 r#+2
+ sv.ld/els r#.v, ofst(r#2).v -> the vector is at ofst*elidx+r#2
+ mem 0 ... offs ... offs*2
+ destreg r# r#+1 r#+2
imm(RA) RT.s RA.s not vectorised
sv.ld r#, ofst(r#2)
imm(RA) RT.s RA.s not vectorised
sv.ld r#, ofst(r#2)
@@
-309,6
+314,7
@@
TODO: indexed mode
RA,RB RT.v RA.v RB.s
sv.ldx r#.v, r#2.v, r#3 -> vector of addresses
RA,RB RT.v RA.s RB.s
RA,RB RT.v RA.v RB.s
sv.ldx r#.v, r#2.v, r#3 -> vector of addresses
RA,RB RT.v RA.s RB.s
+ sv.ldx r#.v, r#2, r#3 -> VSPLAT mode
RA,RB RT.s RA.v RB.v
RA,RB RT.s RA.s RB.v
RA,RB RT.s RA.v RB.s
RA,RB RT.s RA.v RB.v
RA,RB RT.s RA.s RB.v
RA,RB RT.s RA.v RB.s