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target/riscv: Add MXLEN check for F/D/Q applies to zama16b 

Zama16b loads and stores of no more than MXLEN bits defined in the F, D, and Q
extensions.

Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240802072417.659-3-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
LIU Zhiwei 2024-08-02 15:24:16 +08:00 committed by Alistair Francis
parent b19bbf2cf1
commit 30d24145da
1 changed files with 6 additions and 2 deletions
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8
target/riscv/insn_trans/trans_rvd.c.inc
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@ -47,7 +47,11 @@ static bool trans_fld(DisasContext *ctx, arg_fld *a)
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
if (ctx->cfg_ptr->ext_zama16b) {
/*
* Zama16b applies to loads and stores of no more than MXLEN bits defined
* in the F, D, and Q extensions.
*/
if ((get_xl_max(ctx) >= MXL_RV64) && ctx->cfg_ptr->ext_zama16b) {
memop |= MO_ATOM_WITHIN16;
}
@ -67,7 +71,7 @@ static bool trans_fsd(DisasContext *ctx, arg_fsd *a)
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
if (ctx->cfg_ptr->ext_zama16b) {
if ((get_xl_max(ctx) >= MXL_RV64) && ctx->cfg_ptr->ext_zama16b) {
memop |= MO_ATOM_WITHIN16;
}