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target/loongarch: Add fixed point extra instruction translation

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This includes:
- CRC[C].W.{B/H/W/D}.W
- SYSCALL
- BREAK
- ASRT{LE/GT}.D
- RDTIME{L/H}.W, RDTIME.D
- CPUCFG

Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220606124333.2060567-10-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Song Gao 2022-06-06 20:42:59 +08:00 • committed by Richard Henderson
parent 94b02d57b0
commit 8708a04a61
5 changed files with 118 additions and 0 deletions
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26
target/loongarch/op_helper.c
View file

@ -13,6 +13,8 @@
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
#include "internals.h"
#include "qemu/crc32c.h"
#include <zlib.h>
/* Exceptions helpers */
void helper_raise_exception(CPULoongArchState *env, uint32_t exception)
@ -55,3 +57,27 @@ void helper_asrtgt_d(CPULoongArchState *env, target_ulong rj, target_ulong rk)
do_raise_exception(env, EXCCODE_ADEM, GETPC());
}
}
target_ulong helper_crc32(target_ulong val, target_ulong m, uint64_t sz)
{
uint8_t buf[8];
target_ulong mask = ((sz * 8) == 64) ? -1ULL : ((1ULL << (sz * 8)) - 1);
m &= mask;
stq_le_p(buf, m);
return (int32_t) (crc32(val ^ 0xffffffff, buf, sz) ^ 0xffffffff);
}
target_ulong helper_crc32c(target_ulong val, target_ulong m, uint64_t sz)
{
uint8_t buf[8];
target_ulong mask = ((sz * 8) == 64) ? -1ULL : ((1ULL << (sz * 8)) - 1);
m &= mask;
stq_le_p(buf, m);
return (int32_t) (crc32c(val, buf, sz) ^ 0xffffffff);
}
target_ulong helper_cpucfg(CPULoongArchState *env, target_ulong rj)
{
return rj > 21 ? 0 : env->cpucfg[rj];
}