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target/riscv: rvv-1.0: remove MLEN calculations

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As in RVV 1.0 design, MLEN is hardcoded with value 1 (Section 4.5).
Thus, remove all MLEN related calculations.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-13-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Frank Chang 2021-12-10 15:55:58 +08:00 • committed by Alistair Francis
parent 6bc3dfa96d
commit f9298de514
4 changed files with 111 additions and 187 deletions
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9
target/riscv/internals.h
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@ -22,11 +22,10 @@
#include "hw/registerfields.h"
/* share data between vector helpers and decode code */
FIELD(VDATA, MLEN, 0, 8)
FIELD(VDATA, VM, 8, 1)
FIELD(VDATA, LMUL, 9, 2)
FIELD(VDATA, NF, 11, 4)
FIELD(VDATA, WD, 11, 1)
FIELD(VDATA, VM, 0, 1)
FIELD(VDATA, LMUL, 1, 3)
FIELD(VDATA, NF, 4, 4)
FIELD(VDATA, WD, 4, 1)
/* float point classify helpers */
target_ulong fclass_h(uint64_t frs1);