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target/i386: move FERR handling to target/i386

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Move it out of pc.c since it is strictly tied to TCG.  This is
almost exclusively code movement, the next patch will implement
IGNNE.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2019-10-16 10:18:10 +02:00
parent 038adc2f58
commit 6f529b7534
6 changed files with 36 additions and 19 deletions
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17
hw/i386/pc.c
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@ -381,23 +381,12 @@ static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
}
/* MSDOS compatibility mode FPU exception support */
static qemu_irq ferr_irq;
void pc_register_ferr_irq(qemu_irq irq)
{
ferr_irq = irq;
}
/* XXX: add IGNNE support */
void cpu_set_ferr(CPUX86State *s)
{
qemu_irq_raise(ferr_irq);
}
static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
unsigned size)
{
qemu_irq_lower(ferr_irq);
if (tcg_enabled()) {
cpu_clear_ferr();
}
}
static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)