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Fixed the RAM granularity ont he NCR PC4i, fixes #3654.

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OBattler
2023-10-14 04:19:42 +02:00
parent 5eb0db0aae
commit 02fb5ffbd8
2 changed files with 16 additions and 9 deletions
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23
src/device/keyboard_xt.c
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@@ -599,12 +599,19 @@ kbd_read(uint16_t port, void *priv)
switch (port) {
case 0x60: /* Keyboard Data Register (aka Port A) */
if ((kbd->pb & 0x80) && ((kbd->type == KBD_TYPE_PC81) || (kbd->type == KBD_TYPE_PC82) || (kbd->type == KBD_TYPE_PRAVETZ) || (kbd->type == KBD_TYPE_XT82) ||
(kbd->type == KBD_TYPE_XT86) || (kbd->type == KBD_TYPE_XTCLONE) || (kbd->type == KBD_TYPE_COMPAQ) || (kbd->type == KBD_TYPE_ZENITH))) {
if ((kbd->type == KBD_TYPE_PC81) || (kbd->type == KBD_TYPE_PC82) || (kbd->type == KBD_TYPE_XTCLONE) || (kbd->type == KBD_TYPE_COMPAQ) || (kbd->type == KBD_TYPE_PRAVETZ))
if ((kbd->pb & 0x80) && ((kbd->type == KBD_TYPE_PC81) ||
(kbd->type == KBD_TYPE_PC82) || (kbd->type == KBD_TYPE_PRAVETZ) ||
(kbd->type == KBD_TYPE_XT82) || (kbd->type == KBD_TYPE_XT86) ||
(kbd->type == KBD_TYPE_XTCLONE) || (kbd->type == KBD_TYPE_COMPAQ) ||
(kbd->type == KBD_TYPE_ZENITH))) {
if ((kbd->type == KBD_TYPE_PC81) || (kbd->type == KBD_TYPE_PC82) ||
(kbd->type == KBD_TYPE_XTCLONE) || (kbd->type == KBD_TYPE_COMPAQ) ||
(kbd->type == KBD_TYPE_PRAVETZ))
ret = (kbd->pd & ~0x02) | (hasfpu ? 0x02 : 0x00);
else if ((kbd->type == KBD_TYPE_XT82) || (kbd->type == KBD_TYPE_XT86))
ret = 0xff; /* According to Ruud on the PCem forum, this is supposed to return 0xFF on the XT. */
/* According to Ruud on the PCem forum, this is supposed to
return 0xFF on the XT. */
ret = 0xff;
else if (kbd->type == KBD_TYPE_ZENITH) {
/* Zenith Data Systems Z-151
* SW1 switch settings:
@@ -633,7 +640,8 @@ kbd_read(uint16_t port, void *priv)
break;
case 0x62: /* Switch Register (aka Port C) */
if ((kbd->type == KBD_TYPE_PC81) || (kbd->type == KBD_TYPE_PC82) || (kbd->type == KBD_TYPE_PRAVETZ)) {
if ((kbd->type == KBD_TYPE_PC81) || (kbd->type == KBD_TYPE_PC82) ||
(kbd->type == KBD_TYPE_PRAVETZ)) {
if (kbd->pb & 0x04) /* PB2 */
switch (mem_size + isa_mem_size) {
case 64:
@@ -648,8 +656,8 @@ kbd_read(uint16_t port, void *priv)
}
else
ret = (((mem_size + isa_mem_size) - 64) / 32) >> 4;
} else if (kbd->type == KBD_TYPE_OLIVETTI
|| kbd->type == KBD_TYPE_ZENITH) {
} else if ((kbd->type == KBD_TYPE_OLIVETTI) ||
(kbd->type == KBD_TYPE_ZENITH)) {
/* Olivetti M19 or Zenith Data Systems Z-151 */
if (kbd->pb & 0x04) /* PB2 */
ret = kbd->pd & 0xbf;
@@ -754,7 +762,6 @@ kbd_init(const device_t *info)
(kbd->type <= KBD_TYPE_XT86) || (kbd->type == KBD_TYPE_XTCLONE) ||
(kbd->type == KBD_TYPE_COMPAQ) || (kbd->type == KBD_TYPE_TOSHIBA) ||
(kbd->type == KBD_TYPE_OLIVETTI)) {
/* DIP switch readout: bit set = OFF, clear = ON. */
if (kbd->type == KBD_TYPE_OLIVETTI)
/* Olivetti M19

2
src/machine/machine_table.c
View File

@@ -1045,7 +1045,7 @@ const machine_t machines[] = {
.ram = {
.min = 256,
.max = 640,
.step = 256
.step = 128
},
.nvrmask = 0,
.kbc_device = &keyboard_xtclone_device,