mirrors/86Box
1
0
Fork 0
mirror of https://github.com/86Box/86Box.git synced 2025-01-22 09:11:50 -05:00
Code Issues Projects Releases Packages Wiki Activity

Fixed the fix.

Browse source
This commit is contained in:
OBattler 2025-01-13 05:01:00 +01:00
parent 123ff3b5e7
commit b1f94abc27
1 changed files with 36 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

52
src/cpu/808x.c
View file

@ -1637,52 +1637,72 @@ cpu_data_opff_rm(void)
uint8_t
cpu_inb(uint16_t port)
{
int old_cycles = cycles;
uint8_t ret;
wait(4, 0);
wait(is_mazovia ? 5 : 4, 1);
old_cycles = cycles;
ret = inb(port);
resub_cycles();
resub_cycles(old_cycles);
return ret;
}
uint16_t
cpu_inw(uint16_t port)
{
int old_cycles = cycles;
uint16_t ret;
if (is8086 && !(port & 1))
wait(4, 0);
else
wait(8, 0);
wait(is_mazovia ? 5 : 4, 1);
if (is8086 && !(port & 1)) {
old_cycles = cycles;
ret = inw(port);
} else {
wait(is_mazovia ? 5 : 4, 1);
old_cycles = cycles;
ret = inb(port++);
ret |= (inb(port) << 8);
}
ret = inw(port);
resub_cycles(old_cycles);
resub_cycles();
return ret;
}
void
cpu_outb(uint16_t port, uint16_t val)
{
wait(4, 0);
int old_cycles = cycles;
wait(is_mazovia ? 5 : 4, 1);
old_cycles = cycles;
outb(port, val);
resub_cycles();
resub_cycles(old_cycles);
}
void
cpu_outw(uint16_t port, uint16_t val)
{
if (is8086 && !(port & 1))
wait(4, 0);
else
wait(8, 0);
int old_cycles = cycles;
outw(port, val);
wait(is_mazovia ? 5 : 4, 1);
resub_cycles();
if (is8086 && !(port & 1)) {
old_cycles = cycles;
outw(port, val);
} else {
wait(is_mazovia ? 5 : 4, 1);
old_cycles = cycles;
outb(port++, val);
outb(port, val >> 8);
}
resub_cycles(old_cycles);
}
/* Executes instructions up to the specified number of cycles. */