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Ported the ISA RTC and Memory expansion cards from VARCem's.

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Bunch of improvements in the device, memory and MMU handling.
Re-worked the NEAT 286 chipset (ported from VARCem).
Re-worked the ATI 28800 a bit, added Sierra SC1502x ramdac to VGA Wonder XL (Compaq) since it supports such.
Top 384K memory handling improvements (256K top memory too)
Added MCA version of MPU-401 (not tested much, however).
Re-worked the SCAT 286 chipset.
This commit is contained in:
TC1995
2018-09-03 13:55:09 +02:00
parent 0e96d5d7a4
commit 0d2ee0a57d
29 changed files with 3605 additions and 422 deletions
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63
src/device.c
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@@ -9,7 +9,7 @@
* Implementation of the generic device interface to handle
* all devices attached to the emulator.
*
* Version: @(#)device.c 1.0.8 2018/04/29
* Version: @(#)device.c 1.0.9 2018/09/02
*
* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
* Miran Grca, <mgrca8@gmail.com>
@@ -39,6 +39,7 @@
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <wchar.h>
@@ -54,9 +55,17 @@
#define DEVICE_MAX 256 /* max # of devices */
static void *device_priv[DEVICE_MAX];
static device_t *devices[DEVICE_MAX];
static device_t *device_current;
typedef struct clonedev {
const device_t *master;
int count;
struct clonedev *next;
} clonedev_t;
static device_t *devices[DEVICE_MAX];
static void *device_priv[DEVICE_MAX];
static device_t *device_current;
static clonedev_t *clones;
#ifdef ENABLE_DEVICE_LOG
@@ -78,7 +87,7 @@ device_log(const char *format, ...)
#endif
}
/* Initialize the module for use. */
void
device_init(void)
{
@@ -86,6 +95,50 @@ device_init(void)
}
/* Clone a master device for multi-instance devices. */
const device_t *
device_clone(const device_t *master)
{
char temp[1024], *sp;
clonedev_t *cl, *ptr;
device_t *dev;
/* Look up the master. */
for (ptr = clones; ptr != NULL; ptr = ptr->next)
if (ptr->master == master) break;
/* If not found, add this master to the list. */
if (ptr == NULL) {
ptr = (clonedev_t *)malloc(sizeof(clonedev_t));
memset(ptr, 0x00, sizeof(clonedev_t));
if (clones != NULL) {
for (cl = clones; cl->next != NULL; cl = cl->next)
;
cl->next = ptr;
} else
clones = ptr;
ptr->master = master;
}
/* Create a new device. */
dev = (device_t *)malloc(sizeof(device_t));
/* Copy the master info. */
memcpy(dev, ptr->master, sizeof(device_t));
/* Set up a clone. */
if (++ptr->count > 1)
sprintf(temp, "%s #%i", ptr->master->name, ptr->count);
else
strcpy(temp, ptr->master->name);
sp = (char *)malloc(strlen(temp) + 1);
strcpy(sp, temp);
dev->name = (const char *)sp;
return((const device_t *)dev);
}
void *
device_add(const device_t *d)
{