On 11/5/26 20:22, James Hilliard wrote:
ZCBT has the same user-mode memory effect as ZCB for QEMU's purposes.
Reuse the ZCB translator so both cache-block-zero forms clear the
containing 128-byte line.
Acked-by: Richard Henderson <[email protected]>
Signed-off-by: James Hilliard <[email protected]>
---
Changes v2 -> v3:
- Split ZCBT out of the combined Octeon arithmetic and memory
instruction patch. (requested by Richard Henderson)
Changes v4 -> v5:
- Fold ZCBT into the ZCB decodetree entry with a selector comment
instead of adding a separate translator thunk. (suggested by Richard
Henderson)
---
target/mips/tcg/octeon.decode | 1 +
1 file changed, 1 insertion(+)
diff --git a/target/mips/tcg/octeon.decode b/target/mips/tcg/octeon.decode
index d8a1bfce77..5377f7b3ef 100644
--- a/target/mips/tcg/octeon.decode
+++ b/target/mips/tcg/octeon.decode
@@ -51,6 +51,7 @@ SAAD 011100 ..... ..... 00000 00000 011001 @saa
&zcb base
ZCB 011100 base:5 00000 00000 11100 011111 &zcb
+ZCB 011100 base:5 00000 00000 11101 011111 &zcb # ZCBT
What about using '-' instead?
ZCB 011100 base:5 00000 00000 1110- 011111 &zcb
Although if we were using decodetree for the disassembler
output then ZCBT would be preferred.
&lx base index rd
@lx ...... base:5 index:5 rd:5 ...... ..... &lx
