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SiS 5598 Implementation.

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This commit is contained in:
Panagiotis
2021-04-21 21:54:23 +03:00
committed by GitHub
parent b0870d5055
commit 11d4f18cfe
11 changed files with 1259 additions and 18 deletions
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27
src/nvr_at.c
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@@ -284,6 +284,10 @@
#define RTC_ALDAY 0x7D /* VIA VT82C586B - alarm day */
#define RTC_ALMONTH 0x7E /* VIA VT82C586B - alarm month */
#define RTC_CENTURY_VIA 0x7F /* century register for VIA VT82C586B */
#define RTC_ALDAY_SIS 0x7E /* Day of Month Alarm for SiS */
#define RTC_ALMONT_SIS 0x7F /* Month Alarm for SiS */
#define RTC_REGS 14 /* number of registers */
#define FLAG_LS_HACK 0x01
@@ -452,7 +456,9 @@ timer_update(void *priv)
check_alarm(nvr, RTC_MINUTES) &&
check_alarm(nvr, RTC_HOURS) &&
check_alarm_via(nvr, RTC_DOM, RTC_ALDAY) &&
check_alarm_via(nvr, RTC_MONTH, RTC_ALMONTH)) {
check_alarm_via(nvr, RTC_MONTH, RTC_ALMONTH) &&
check_alarm_via(nvr, RTC_DOM, RTC_ALDAY_SIS) &&
check_alarm_via(nvr, RTC_MONTH, RTC_ALMONT_SIS)) {
nvr->regs[RTC_REGC] |= REGC_AF;
if (nvr->regs[RTC_REGB] & REGB_AIE) {
nvr->regs[RTC_REGC] |= REGC_IRQF;
@@ -759,7 +765,6 @@ nvr_read(uint16_t addr, void *priv)
return(ret);
}
/* Secondary NVR write - used by SMC. */
static void
nvr_sec_write(uint16_t addr, uint8_t val, void *priv)
@@ -775,7 +780,6 @@ nvr_sec_read(uint16_t addr, void *priv)
return nvr_read(0x72 + (addr & 1), priv);
}
/* Reset the RTC state to 1980/01/01 00:00. */
static void
nvr_reset(nvr_t *nvr)
@@ -791,7 +795,6 @@ nvr_reset(nvr_t *nvr)
nvr->regs[local->cent] = RTC_BCD(19);
}
/* Process after loading from file. */
static void
nvr_start(nvr_t *nvr)
@@ -861,7 +864,6 @@ nvr_at_sec_handler(int set, uint16_t base, nvr_t *nvr)
nvr_sec_read,NULL,NULL, nvr_sec_write,NULL,NULL, nvr);
}
void
nvr_read_addr_set(int set, nvr_t *nvr)
{
@@ -919,7 +921,7 @@ nvr_at_init(const device_t *info)
nvr->size = machines[machine].nvrmask + 1;
local->lock = (uint8_t *) malloc(nvr->size);
memset(local->lock, 0x00, nvr->size);
local->def = 0xff /*0x00*/;
local->def = 0x00;
local->flags = 0x00;
switch(info->local & 7) {
case 0: /* standard AT, no century register */
@@ -930,7 +932,7 @@ nvr_at_init(const device_t *info)
case 1: /* standard AT */
case 5: /* Lucky Star LS-486E */
case 6: /* AMI Apollo */
if (info->local == 9)
if ((info->local == 9) || (info->local == 16))
local->flags |= FLAG_PIIX4;
else {
if ((info->local & 7) == 5)
@@ -986,10 +988,8 @@ nvr_at_init(const device_t *info)
/* Set up the I/O handler for this device. */
io_sethandler(0x0070, 2,
nvr_read,NULL,NULL, nvr_write,NULL,NULL, nvr);
if (info->local & 8) {
io_sethandler(0x0072, 2,
nvr_read,NULL,NULL, nvr_write,NULL,NULL, nvr);
}
nvr_at_inited = 1;
}
@@ -1079,6 +1079,15 @@ const device_t piix4_nvr_device = {
NULL
};
const device_t sis_nvr_device = {
"SiS PC/AT NVRAM",
DEVICE_ISA | DEVICE_AT,
11,
nvr_at_init, nvr_at_close, NULL,
{ NULL }, nvr_at_speed_changed,
NULL
};
const device_t ls486e_nvr_device = {
"Lucky Star LS-486E PC/AT NVRAM",
DEVICE_ISA | DEVICE_AT,