claunia/86Box
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IDE fixes and finished the SiS 5511.

Browse Source
This commit is contained in:
OBattler
2023-10-20 02:57:50 +02:00
parent 5c4429e4ec
commit 88934ab0ca
24 changed files with 844 additions and 480 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
src/pit_fast.c
View File

@@ -498,6 +498,41 @@ pitf_write(uint16_t addr, uint8_t val, void *priv)
}
}
uint8_t
pitf_read_reg(void *priv, uint8_t reg)
{
pitf_t *dev = (pitf_t *) priv;
uint8_t ret = 0xff;
switch (reg) {
case 0x00:
case 0x02:
case 0x04:
ret = dev->counters[reg >> 1].l & 0xff;
break;
case 0x01:
case 0x03:
case 0x05:
ret = (dev->counters[reg >> 1].l >> 8) & 0xff;
break;
case 0x06:
ret = dev->ctrl;
break;
case 0x07:
/* The SiS 551x datasheet is unclear about how exactly
this register is structured. */
ret = (dev->counters[0].rm & 0x80) ? 0x01 : 0x00;
ret = (dev->counters[0].wm & 0x80) ? 0x02 : 0x00;
ret = (dev->counters[1].rm & 0x80) ? 0x04 : 0x00;
ret = (dev->counters[1].wm & 0x80) ? 0x08 : 0x00;
ret = (dev->counters[2].rm & 0x80) ? 0x10 : 0x00;
ret = (dev->counters[2].wm & 0x80) ? 0x20 : 0x00;
break;
}
return ret;
}
static uint8_t
pitf_read(uint16_t addr, void *priv)
{
@@ -654,7 +689,7 @@ pitf_init(const device_t *info)
const device_t i8253_fast_device = {
.name = "Intel 8253/8253-5 Programmable Interval Timer",
.internal_name = "i8253_fast",
.flags = DEVICE_ISA,
.flags = DEVICE_ISA | DEVICE_PIT,
.local = PIT_8253,
.init = pitf_init,
.close = pitf_close,
@@ -668,7 +703,7 @@ const device_t i8253_fast_device = {
const device_t i8254_fast_device = {
.name = "Intel 8254 Programmable Interval Timer",
.internal_name = "i8254_fast",
.flags = DEVICE_ISA,
.flags = DEVICE_ISA | DEVICE_PIT,
.local = PIT_8254,
.init = pitf_init,
.close = pitf_close,
@@ -731,4 +766,4 @@ const pit_intf_t pit_fast_intf = {
&pitf_ctr_set_load_func,
&pitf_ctr_clock,
NULL,
};
};