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Added Compaq-specific registers to the Olivetti M24 video emulation for compatibility with the Compaq Portable III, III/386 and Deskpro 386.

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This commit is contained in:
TC1995
2017-11-23 11:11:27 +01:00
parent 248d8c2604
commit 016b0f8bdf
1 changed files with 57 additions and 4 deletions
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61
src/machine/m_olivetti_m24.c
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@@ -8,7 +8,7 @@
*
* Emulation of the Olivetti M24.
*
* Version: @(#)m_olivetti_m24.c 1.0.3 2017/11/11
* Version: @(#)m_olivetti_m24.c 1.0.4 2017/11/23
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
@@ -22,6 +22,7 @@
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <wchar.h>
#include "../86box.h"
#include "../io.h"
@@ -57,6 +58,7 @@ typedef struct {
mem_mapping_t mapping;
uint8_t crtc[32];
int crtcreg;
uint8_t monitor_type, port_23c6;
uint8_t *vram;
uint8_t charbuffer[256];
uint8_t ctrl;
@@ -102,7 +104,28 @@ static uint8_t key_queue[16];
static int key_queue_start = 0,
key_queue_end = 0;
#ifdef ENABLE_M24VID_LOG
int m24vid_do_log = ENABLE_M24VID_LOG;
#endif
static void
m24vid_log(const char *fmt, ...)
{
#ifdef ENABLE_M24VID_LOG
va_list ap;
if (m24vid_do_log) {
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
fflush(stdout);
}
#endif
}
static void
recalc_timings(olim24_t *m24)
{
@@ -158,6 +181,14 @@ vid_out(uint16_t addr, uint8_t val, void *priv)
m24->ctrl = val;
m24->base = (val & 0x08) ? 0x4000 : 0;
break;
case 0x13c6:
m24->monitor_type = val;
break;
case 0x23c6:
m24->port_23c6 = val;
break;
}
}
@@ -180,6 +211,14 @@ vid_in(uint16_t addr, void *priv)
case 0x3da:
ret = m24->stat;
break;
case 0x13c6:
ret = m24->monitor_type;
break;
case 0x23c6:
ret = m24->port_23c6;
break;
}
return(ret);
@@ -232,7 +271,8 @@ vid_poll(void *priv)
m24->firstline = m24->displine;
}
m24->lastline = m24->displine;
for (c = 0; c < 8; c++) {
for (c = 0; c < 8; c++)
{
if ((m24->cgamode & 0x12) == 0x12) {
buffer->line[m24->displine][c] = 0;
if (m24->cgamode & 1)
@@ -322,13 +362,14 @@ vid_poll(void *priv)
}
}
} else {
if (m24->ctrl & 1) {
if (m24->ctrl & 1 || ((m24->monitor_type & 8) && (m24->port_23c6 & 1))) {
dat2 = ((m24->sc & 1) * 0x4000) | (m24->lineff * 0x2000);
cols[0] = 0; cols[1] = /*(m24->cgacol & 15)*/15 + 16;
} else {
dat2 = (m24->sc & 1) * 0x2000;
cols[0] = 0; cols[1] = (m24->cgacol & 15) + 16;
}
for (x = 0; x < m24->crtc[1]; x++) {
dat = (m24->vram[((m24->ma << 1) & 0x1fff) + dat2] << 8) | m24->vram[((m24->ma << 1) & 0x1fff) + dat2 + 1];
m24->ma++;
@@ -729,11 +770,20 @@ m24_read(uint16_t port, void *priv)
return(0xff);
}
static void
vid_close(void *priv)
{
olim24_t *m24 = (olim24_t *)priv;
free(m24->vram);
free(m24);
}
device_t m24_device = {
"Olivetti M24",
0, 0,
NULL, NULL, NULL,
NULL, vid_close, NULL,
NULL,
speed_changed,
NULL, NULL,
@@ -776,6 +826,7 @@ machine_olim24_init(machine_t *model)
kbd_read, NULL, NULL, kbd_write, NULL, NULL, m24);
io_sethandler(0x0064, 1,
kbd_read, NULL, NULL, kbd_write, NULL, NULL, m24);
keyboard_set_table(scancode_xt);
keyboard_send = kbd_adddata;
keyboard_scan = 1;
timer_add(kbd_poll, &keyboard_delay, TIMER_ALWAYS_ENABLED, m24);
@@ -805,6 +856,8 @@ void machine_olim24_video_init(void) {
vid_read, NULL, NULL,
vid_write, NULL, NULL, NULL, 0, m24);
io_sethandler(0x03d0, 16, vid_in, NULL, NULL, vid_out, NULL, NULL, m24);
io_sethandler(0x13c6, 1, vid_in, NULL, NULL, vid_out, NULL, NULL, m24);
io_sethandler(0x23c6, 1, vid_in, NULL, NULL, vid_out, NULL, NULL, m24);
timer_add(vid_poll, &m24->vidtime, TIMER_ALWAYS_ENABLED, m24);
device_add_ex(&m24_device, m24);
}