Sandipan Das has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/16631
Change subject: arch-power: Add fixed-point logical parity instructions
......................................................................
arch-power: Add fixed-point logical parity instructions
This adds the following logical instructions:
* Parity Word (prtyw)
* Parity Doubleword (prtyd)
Change-Id: Icb1737435dfabf9ac7b14ce1fcdf1c232289bf24
Signed-off-by: Sandipan Das <[email protected]>
---
M src/arch/power/isa/decoder.isa
1 file changed, 17 insertions(+), 0 deletions(-)
diff --git a/src/arch/power/isa/decoder.isa b/src/arch/power/isa/decoder.isa
index 31f85a5..abecc8f 100644
--- a/src/arch/power/isa/decoder.isa
+++ b/src/arch/power/isa/decoder.isa
@@ -572,6 +572,23 @@
506: popcntd({{ Ra = popCount(Rs); }});
+ 154: prtyw({{
+ uint64_t res = Rs;
+ res = res ^ (res >> 16);
+ res = res ^ (res >> 8);
+ res = res & 0x100000001;
+ Ra = res;
+ }});
+
+ 186: prtyd({{
+ uint64_t res = Rs;
+ res = res ^ (res >> 32);
+ res = res ^ (res >> 16);
+ res = res ^ (res >> 8);
+ res = res & 0x1;
+ Ra = res;
+ }});
+
24: slw({{
if (Rb & 0x20) {
Ra = 0;
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: Icb1737435dfabf9ac7b14ce1fcdf1c232289bf24
Gerrit-Change-Number: 16631
Gerrit-PatchSet: 1
Gerrit-Owner: Sandipan Das <[email protected]>
Gerrit-MessageType: newchange
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