80486DX2-66/86Box-fork
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Fixed a slight mess with the Amstrad PC1512 and PC1640 memory mappings.

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This commit is contained in:
OBattler
2018-01-29 00:19:33 +01:00
parent 58e20abaa1
commit 2e17ef04e3
1 changed files with 12 additions and 14 deletions
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26
src/machine/m_amstrad.c
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@@ -32,7 +32,7 @@
* in alpha mode, but in highres ("ECD350") mode, it displays
* some semi-random junk. Video-memory pointer maybe?
*
* Version: @(#)m_amstrad.c 1.0.6 2018/01/24
* Version: @(#)m_amstrad.c 1.0.7 2018/01/28
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
@@ -85,8 +85,6 @@
typedef struct {
mem_mapping_t cga_map; /* 1512/1640/200 */
mem_mapping_t ega_map; /* 1640 */
rom_t bios_rom; /* 1640 */
cga_t cga; /* 1640/200 */
ega_t ega; /* 1640 */
@@ -527,7 +525,7 @@ vid_init_1512(amstrad_t *ams)
vid->cgamode = 0x12;
timer_add(vid_poll_1512, &vid->vidtime, TIMER_ALWAYS_ENABLED, vid);
mem_mapping_add(&vid->cga_map, 0xb8000, 0x08000,
mem_mapping_add(&vid->cga.mapping, 0xb8000, 0x08000,
vid_read_1512, NULL, NULL, vid_write_1512, NULL, NULL,
NULL, 0, vid);
io_sethandler(0x03d0, 16,
@@ -599,28 +597,28 @@ vid_out_1640(uint16_t addr, uint8_t val, void *priv)
case 0x03db:
vid->cga_enabled = val & 0x40;
if (vid->cga_enabled) {
mem_mapping_enable(&vid->cga_map);
mem_mapping_disable(&vid->ega_map);
mem_mapping_enable(&vid->cga.mapping);
mem_mapping_disable(&vid->ega.mapping);
} else {
mem_mapping_disable(&vid->cga_map);
mem_mapping_disable(&vid->cga.mapping);
switch (vid->ega.gdcreg[6] & 0xc) {
case 0x0: /*128k at A0000*/
mem_mapping_set_addr(&vid->ega_map,
mem_mapping_set_addr(&vid->ega.mapping,
0xa0000, 0x20000);
break;
case 0x4: /*64k at A0000*/
mem_mapping_set_addr(&vid->ega_map,
mem_mapping_set_addr(&vid->ega.mapping,
0xa0000, 0x10000);
break;
case 0x8: /*32k at B0000*/
mem_mapping_set_addr(&vid->ega_map,
mem_mapping_set_addr(&vid->ega.mapping,
0xb0000, 0x08000);
break;
case 0xC: /*32k at B8000*/
mem_mapping_set_addr(&vid->ega_map,
mem_mapping_set_addr(&vid->ega.mapping,
0xb8000, 0x08000);
break;
}
@@ -688,9 +686,9 @@ vid_init_1640(amstrad_t *ams)
vid->cga_enabled = 1;
cga_init(&vid->cga);
mem_mapping_add(&vid->cga_map, 0xb8000, 0x08000,
mem_mapping_add(&vid->cga.mapping, 0xb8000, 0x08000,
cga_read, NULL, NULL, cga_write, NULL, NULL, NULL, 0, &vid->cga);
mem_mapping_add(&vid->ega_map, 0, 0,
mem_mapping_add(&vid->ega.mapping, 0, 0,
ega_read, NULL, NULL, ega_write, NULL, NULL, NULL, 0, &vid->ega);
io_sethandler(0x03a0, 64,
vid_in_1640, NULL, NULL, vid_out_1640, NULL, NULL, vid);
@@ -825,7 +823,7 @@ vid_init_200(amstrad_t *ams)
cga->vram = malloc(0x4000);
cga_init(cga);
mem_mapping_add(&vid->cga_map, 0xb8000, 0x08000,
mem_mapping_add(&vid->cga.mapping, 0xb8000, 0x08000,
cga_read, NULL, NULL, cga_write, NULL, NULL, NULL, 0, cga);
io_sethandler(0x03d0, 16,
vid_in_200, NULL, NULL, vid_out_200, NULL, NULL, vid);