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Added flash size and turbo switches to Xi8088. Patch from EluanCM.

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This commit is contained in:
SarahW 2018-02-28 21:36:15 +00:00
commit c298e706a4
4 changed files with 101 additions and 13 deletions
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19
src/mem.c
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@ -17,6 +17,7 @@
#include "rom.h"
#include "x86_ops.h"
#include "codegen.h"
#include "xi8088.h"
page_t *pages;
page_t **page_lookup;
@ -901,11 +902,19 @@ int loadbios()
case ROM_XI8088:
f = romfopen("xi8088/bios-xi8088.bin", "rb"); /* use the bios without xt-ide because it's configurable in pcem */
if (!f) break;
/* high bit is flipped in xi8088 */
romfread(rom + 0x10000, 0x10000, 1, f);
romfread(rom, 0x10000, 1, f);
if (xi8088_bios_128kb())
{
/* high bit is flipped in xi8088 */
romfread(rom + 0x10000, 0x10000, 1, f);
romfread(rom, 0x10000, 1, f);
biosmask = 0x1ffff;
}
else
{
/* smaller bios, more UMBs */
romfread(rom, 0x10000, 1, f);
}
fclose(f);
biosmask = 0x1ffff;
return 1;
}
printf("Failed to load ROM!\n");
@ -2189,7 +2198,7 @@ void mem_set_mem_state(uint32_t base, uint32_t size, int state)
void mem_add_bios()
{
if (AT)
if (AT || (romset == ROM_XI8088 && xi8088_bios_128kb()))
{
mem_mapping_add(&bios_mapping[0], 0xe0000, 0x04000, mem_read_bios, mem_read_biosw, mem_read_biosl, mem_write_null, mem_write_nullw, mem_write_nulll, rom, MEM_MAPPING_EXTERNAL, 0);
mem_mapping_add(&bios_mapping[1], 0xe4000, 0x04000, mem_read_bios, mem_read_biosw, mem_read_biosl, mem_write_null, mem_write_nullw, mem_write_nulll, rom + (0x4000 & biosmask), MEM_MAPPING_EXTERNAL, 0);