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target/arm: Add aa{32, 64}_vfp_{dreg, qreg} helpers

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Helpers that return a pointer into env->vfp.regs so that we isolate
the logic of how to index the regs array for different cpu modes.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180119045438.28582-7-richard.henderson@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2018-01-25 11:45:29 +00:00 • committed by Peter Maydell
parent 3f68b8a5a6
commit 9a2b5256ea
9 changed files with 96 additions and 74 deletions
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25
target/arm/translate-a64.c
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@ -164,15 +164,12 @@ void aarch64_cpu_dump_state(CPUState *cs, FILE *f,
if (flags & CPU_DUMP_FPU) {
int numvfpregs = 32;
for (i = 0; i < numvfpregs; i += 2) {
uint64_t vlo = env->vfp.regs[i * 2];
uint64_t vhi = env->vfp.regs[(i * 2) + 1];
cpu_fprintf(f, "q%02d=%016" PRIx64 ":%016" PRIx64 " ",
i, vhi, vlo);
vlo = env->vfp.regs[(i + 1) * 2];
vhi = env->vfp.regs[((i + 1) * 2) + 1];
cpu_fprintf(f, "q%02d=%016" PRIx64 ":%016" PRIx64 "\n",
i + 1, vhi, vlo);
for (i = 0; i < numvfpregs; i++) {
uint64_t *q = aa64_vfp_qreg(env, i);
uint64_t vlo = q[0];
uint64_t vhi = q[1];
cpu_fprintf(f, "q%02d=%016" PRIx64 ":%016" PRIx64 "%c",
i, vhi, vlo, (i & 1 ? '\n' : ' '));
}
cpu_fprintf(f, "FPCR: %08x FPSR: %08x\n",
vfp_get_fpcr(env), vfp_get_fpsr(env));
@ -558,19 +555,13 @@ static TCGv_ptr vec_full_reg_ptr(DisasContext *s, int regno)
*/
static inline int fp_reg_offset(DisasContext *s, int regno, TCGMemOp size)
{
int offs = offsetof(CPUARMState, vfp.regs[regno * 2]);
#ifdef HOST_WORDS_BIGENDIAN
offs += (8 - (1 << size));
#endif
assert_fp_access_checked(s);
return offs;
return vec_reg_offset(s, regno, 0, size);
}
/* Offset of the high half of the 128 bit vector Qn */
static inline int fp_reg_hi_offset(DisasContext *s, int regno)
{
assert_fp_access_checked(s);
return offsetof(CPUARMState, vfp.regs[regno * 2 + 1]);
return vec_reg_offset(s, regno, 1, MO_64);
}
/* Convenience accessors for reading and writing single and double