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target-sparc: Change fpr representation to doubles.

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This allows a more efficient representation for 64-bit hosts.
It should be about the same for 32-bit hosts, as we can still
access the individual pieces of the double.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2011-10-17 10:42:49 -07:00
parent 45c7b743cd
commit 30038fd818
8 changed files with 202 additions and 211 deletions
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20
target-sparc/machine.c
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@ -21,13 +21,9 @@ void cpu_save(QEMUFile *f, void *opaque)
qemu_put_betls(f, &env->regbase[i]);
/* FPU */
for(i = 0; i < TARGET_FPREGS; i++) {
union {
float32 f;
uint32_t i;
} u;
u.f = env->fpr[i];
qemu_put_be32(f, u.i);
for (i = 0; i < TARGET_DPREGS; i++) {
qemu_put_be32(f, env->fpr[i].l.upper);
qemu_put_be32(f, env->fpr[i].l.lower);
}
qemu_put_betls(f, &env->pc);
@ -128,13 +124,9 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
qemu_get_betls(f, &env->regbase[i]);
/* FPU */
for(i = 0; i < TARGET_FPREGS; i++) {
union {
float32 f;
uint32_t i;
} u;
u.i = qemu_get_be32(f);
env->fpr[i] = u.f;
for (i = 0; i < TARGET_DPREGS; i++) {
env->fpr[i].l.upper = qemu_get_be32(f);
env->fpr[i].l.lower = qemu_get_be32(f);
}
qemu_get_betls(f, &env->pc);