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Remove custom interrupt dispatcher. This is a pointless micro-optimization

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and it may cause problems if SS and SP are modified by real-mode code.

MFC after:	1 month
This commit is contained in:
Jung-uk Kim 2011-03-09 16:16:38 +00:00
parent 797c37ee2b
commit e09faf083f
1 changed files with 0 additions and 23 deletions
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23
sys/compat/x86bios/x86bios.c
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@ -533,25 +533,6 @@ x86bios_emu_outl(struct x86emu *emu, uint16_t port, uint32_t val)
iodev_write_4(port, val);
}
static void
x86bios_emu_get_intr(struct x86emu *emu, int intno)
{
uint16_t *sp;
uint32_t iv;
emu->x86.R_SP -= 6;
sp = (uint16_t *)((vm_offset_t)x86bios_seg + emu->x86.R_SP);
sp[0] = htole16(emu->x86.R_IP);
sp[1] = htole16(emu->x86.R_CS);
sp[2] = htole16(emu->x86.R_FLG);
iv = x86bios_get_intr(intno);
emu->x86.R_IP = iv & 0xffff;
emu->x86.R_CS = (iv >> 16) & 0xffff;
emu->x86.R_FLG &= ~(F_IF | F_TF);
}
void *
x86bios_alloc(uint32_t *offset, size_t size, int flags)
{
@ -764,7 +745,6 @@ x86bios_map_mem(void)
static int
x86bios_init(void)
{
int i;
mtx_init(&x86bios_lock, "x86bios lock", NULL, MTX_DEF);
@ -787,9 +767,6 @@ x86bios_init(void)
x86bios_emu.emu_outw = x86bios_emu_outw;
x86bios_emu.emu_outl = x86bios_emu_outl;
for (i = 0; i < 256; i++)
x86bios_emu._x86emu_intrTab[i] = x86bios_emu_get_intr;
return (0);
}