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Added the Xi8088.

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This commit is contained in:
OBattler
2018-03-02 20:47:18 +01:00
parent b7120def92
commit 99d22c3c03
13 changed files with 135 additions and 42 deletions
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56
src/rom.c
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@@ -13,7 +13,7 @@
* - c386sx16 BIOS fails checksum
* - the loadfont() calls should be done elsewhere
*
* Version: @(#)rom.c 1.0.32 2018/03/02
* Version: @(#)rom.c 1.0.33 2018/03/02
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
@@ -35,6 +35,7 @@
#include "rom.h"
#include "video/video.h" /* for loadfont() */
#include "plat.h"
#include "machine/m_xt_xi8088.h"
int romspresent[ROM_MAX];
@@ -158,6 +159,42 @@ rom_load_linear(wchar_t *fn, uint32_t addr, int sz, int off, uint8_t *ptr)
}
/* Load a ROM BIOS from its chips, linear mode with high bit flipped. */
int
rom_load_linear_inverted(wchar_t *fn, uint32_t addr, int sz, int off, uint8_t *ptr)
{
FILE *f = rom_fopen(fn, L"rb");
if (f == NULL) {
pclog("ROM: image '%ls' not found\n", fn);
return(0);
}
/* Make sure we only look at the base-256K offset. */
if (addr >= 0x40000)
{
addr = 0;
}
else
{
addr &= 0x03ffff;
}
(void)fseek(f, 0, SEEK_END);
if (ftell(f) < sz) {
(void)fclose(f);
return(0);
}
(void)fseek(f, off, SEEK_SET);
(void)fread(ptr+addr+0x10000, sz >> 1, 1, f);
(void)fread(ptr+addr, sz >> 1, 1, f);
(void)fclose(f);
return(1);
}
/* Load a ROM BIOS from its chips, interleaved mode. */
int
rom_load_interleaved(wchar_t *fnl, wchar_t *fnh, uint32_t addr, int sz, int off, uint8_t *ptr)
@@ -314,6 +351,23 @@ rom_load_bios(int rom_id)
0x008000, 32768, 0, rom)) return(1);
break;
case ROM_XI8088:
if (rom_load_linear_inverted(
L"roms/machines/xi8088/bios-xi8088.bin",
0x000000, 131072, 128, rom)) {
biosmask = 0x1ffff;
xi8088_bios_128kb_set(1);
return(1);
} else {
if (rom_load_linear(
L"roms/machines/xi8088/bios-xi8088.bin",
0x000000, 65536, 128, rom)) {
xi8088_bios_128kb_set(0);
return(1);
}
}
break;
case ROM_IBMXT286: /* IBM PX-XT 286 */
if (rom_load_interleaved(
L"roms/machines/ibmxt286/bios_5162_21apr86_u34_78x7460_27256.bin",