80486DX2-66/86Box-fork
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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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48
src/cpu/cpu.c
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@@ -8,7 +8,7 @@
* *
* CPU type handler. * CPU type handler.
* *
* Version: @(#)cpu.c 1.0.11 2018/02/18 * Version: @(#)cpu.c 1.0.12 2018/03/02
* *
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/> * Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* leilei, * leilei,
@@ -97,6 +97,7 @@ enum
}; };
CPU *cpu_s; CPU *cpu_s;
int cpu_effective;
int cpu_multi; int cpu_multi;
int cpu_iscyrix; int cpu_iscyrix;
int cpu_16bitbus; int cpu_16bitbus;
@@ -181,9 +182,21 @@ int timing_misaligned;
msr_t msr; msr_t msr;
void cpu_dynamic_switch(int new_cpu)
{
if (cpu_effective == new_cpu)
return;
int c = cpu;
cpu = new_cpu;
cpu_set();
speedchanged();
cpu = c;
}
void cpu_set_edx() void cpu_set_edx()
{ {
EDX = machines[machine].cpu[cpu_manufacturer].cpus[cpu].edx_reset; EDX = machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].edx_reset;
} }
@@ -198,7 +211,8 @@ void cpu_set()
cpu = 0; cpu = 0;
} }
cpu_s = &machines[machine].cpu[cpu_manufacturer].cpus[cpu]; cpu_effective = cpu;
cpu_s = &machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective];
CPUID = cpu_s->cpuid_model; CPUID = cpu_s->cpuid_model;
cpuspeed = cpu_s->speed; cpuspeed = cpu_s->speed;
@@ -1277,7 +1291,7 @@ cpu_current_pc(char *bufp)
void cpu_CPUID() void cpu_CPUID()
{ {
switch (machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type) switch (machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type)
{ {
case CPU_i486DX: case CPU_i486DX:
if (!EAX) if (!EAX)
@@ -1708,7 +1722,7 @@ void cpu_CPUID()
void cpu_RDMSR() void cpu_RDMSR()
{ {
switch (machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type) switch (machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type)
{ {
case CPU_WINCHIP: case CPU_WINCHIP:
EAX = EDX = 0; EAX = EDX = 0;
@@ -1936,7 +1950,7 @@ i686_invalid_rdmsr:
void cpu_WRMSR() void cpu_WRMSR()
{ {
switch (machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type) switch (machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type)
{ {
case CPU_WINCHIP: case CPU_WINCHIP:
switch (ECX) switch (ECX)
@@ -1959,7 +1973,7 @@ void cpu_WRMSR()
if (EAX & (1 << 29)) if (EAX & (1 << 29))
CPUID = 0; CPUID = 0;
else else
CPUID = machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpuid_model; CPUID = machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpuid_model;
break; break;
case 0x108: case 0x108:
msr.fcr2 = EAX | ((uint64_t)EDX << 32); msr.fcr2 = EAX | ((uint64_t)EDX << 32);
@@ -2027,7 +2041,7 @@ void cpu_WRMSR()
tsc = EAX | ((uint64_t)EDX << 32); tsc = EAX | ((uint64_t)EDX << 32);
break; break;
case 0x17: case 0x17:
if (machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type != CPU_PENTIUM2D) goto i686_invalid_wrmsr; if (machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type != CPU_PENTIUM2D) goto i686_invalid_wrmsr;
ecx17_msr = EAX | ((uint64_t)EDX << 32); ecx17_msr = EAX | ((uint64_t)EDX << 32);
break; break;
case 0x1B: case 0x1B:
@@ -2055,15 +2069,15 @@ void cpu_WRMSR()
ecx11e_msr = EAX | ((uint64_t)EDX << 32); ecx11e_msr = EAX | ((uint64_t)EDX << 32);
break; break;
case 0x174: case 0x174:
if (machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type == CPU_PENTIUMPRO) goto i686_invalid_wrmsr; if (machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type == CPU_PENTIUMPRO) goto i686_invalid_wrmsr;
cs_msr = EAX & 0xFFFF; cs_msr = EAX & 0xFFFF;
break; break;
case 0x175: case 0x175:
if (machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type == CPU_PENTIUMPRO) goto i686_invalid_wrmsr; if (machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type == CPU_PENTIUMPRO) goto i686_invalid_wrmsr;
esp_msr = EAX; esp_msr = EAX;
break; break;
case 0x176: case 0x176:
if (machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type == CPU_PENTIUMPRO) goto i686_invalid_wrmsr; if (machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type == CPU_PENTIUMPRO) goto i686_invalid_wrmsr;
eip_msr = EAX; eip_msr = EAX;
break; break;
case 0x186: case 0x186:
@@ -2141,10 +2155,10 @@ void cyrix_write(uint16_t addr, uint8_t val, void *priv)
if ((ccr3 & 0xf0) == 0x10) if ((ccr3 & 0xf0) == 0x10)
{ {
ccr4 = val; ccr4 = val;
if (machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type >= CPU_Cx6x86) if (machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type >= CPU_Cx6x86)
{ {
if (val & 0x80) if (val & 0x80)
CPUID = machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpuid_model; CPUID = machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpuid_model;
else else
CPUID = 0; CPUID = 0;
} }
@@ -2174,11 +2188,11 @@ uint8_t cyrix_read(uint16_t addr, void *priv)
case 0xe8: return ((ccr3 & 0xf0) == 0x10) ? ccr4 : 0xff; case 0xe8: return ((ccr3 & 0xf0) == 0x10) ? ccr4 : 0xff;
case 0xe9: return ((ccr3 & 0xf0) == 0x10) ? ccr5 : 0xff; case 0xe9: return ((ccr3 & 0xf0) == 0x10) ? ccr5 : 0xff;
case 0xea: return ((ccr3 & 0xf0) == 0x10) ? ccr6 : 0xff; case 0xea: return ((ccr3 & 0xf0) == 0x10) ? ccr6 : 0xff;
case 0xfe: return machines[machine].cpu[cpu_manufacturer].cpus[cpu].cyrix_id & 0xff; case 0xfe: return machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cyrix_id & 0xff;
case 0xff: return machines[machine].cpu[cpu_manufacturer].cpus[cpu].cyrix_id >> 8; case 0xff: return machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cyrix_id >> 8;
} }
if ((cyrix_addr & 0xf0) == 0xc0) return 0xff; if ((cyrix_addr & 0xf0) == 0xc0) return 0xff;
if (cyrix_addr == 0x20 && machines[machine].cpu[cpu_manufacturer].cpus[cpu].cpu_type == CPU_Cx5x86) return 0xff; if (cyrix_addr == 0x20 && machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].cpu_type == CPU_Cx5x86) return 0xff;
} }
return 0xff; return 0xff;
} }
@@ -2201,7 +2215,7 @@ void x86_setopcodes(OpFn *opcodes, OpFn *opcodes_0f)
void cpu_update_waitstates() void cpu_update_waitstates()
{ {
cpu_s = &machines[machine].cpu[cpu_manufacturer].cpus[cpu]; cpu_s = &machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective];
cpu_prefetch_width = cpu_16bitbus ? 2 : 4; cpu_prefetch_width = cpu_16bitbus ? 2 : 4;

4
src/cpu/cpu.h
View File

@@ -8,7 +8,7 @@
* *
* CPU type handler. * CPU type handler.
* *
* Version: @(#)cpu.h 1.0.7 2018/02/18 * Version: @(#)cpu.h 1.0.8 2018/03/02
* *
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/> * Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* leilei, * leilei,
@@ -462,5 +462,7 @@ extern void x86ts(char *s, uint16_t error);
extern void x87_dumpregs(void); extern void x87_dumpregs(void);
extern void x87_reset(void); extern void x87_reset(void);
extern int cpu_effective;
#endif /*EMU_CPU_H*/ #endif /*EMU_CPU_H*/

22
src/keyboard_at.c
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@@ -8,7 +8,7 @@
* *
* Intel 8042 (AT keyboard controller) emulation. * Intel 8042 (AT keyboard controller) emulation.
* *
* Version: @(#)keyboard_at.c 1.0.26 2018/02/24 * Version: @(#)keyboard_at.c 1.0.27 2018/03/02
* *
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/> * Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com> * Miran Grca, <mgrca8@gmail.com>
@@ -36,6 +36,7 @@
#include "device.h" #include "device.h"
#include "timer.h" #include "timer.h"
#include "machine/machine.h" #include "machine/machine.h"
#include "machine/m_xt_xi8088.h"
#include "machine/m_at_t3100e.h" #include "machine/m_at_t3100e.h"
#include "floppy/fdd.h" #include "floppy/fdd.h"
#include "floppy/fdc.h" #include "floppy/fdc.h"
@@ -1428,6 +1429,9 @@ kbd_write(uint16_t port, uint8_t val, void *priv)
int bad = 1; int bad = 1;
uint8_t mask; uint8_t mask;
if (romset == ROM_XI8088 && port == 0x63)
port = 0x61;
switch (port) { switch (port) {
case 0x60: case 0x60:
if (kbd->want60) { if (kbd->want60) {
@@ -1656,6 +1660,13 @@ kbd_write(uint16_t port, uint8_t val, void *priv)
if (speaker_enable) if (speaker_enable)
was_speaker_enable = 1; was_speaker_enable = 1;
pit_set_gate(&pit, 2, val & 1); pit_set_gate(&pit, 2, val & 1);
if (romset == ROM_XI8088) {
if (val & 0x04)
xi8088_turbo_set(1);
else
xi8088_turbo_set(0);
}
break; break;
case 0x64: case 0x64:
@@ -1782,6 +1793,9 @@ kbd_read(uint16_t port, void *priv)
atkbd_t *kbd = (atkbd_t *)priv; atkbd_t *kbd = (atkbd_t *)priv;
uint8_t ret = 0xff; uint8_t ret = 0xff;
if (romset == ROM_XI8088 && port == 0x63)
port = 0x61;
switch (port) { switch (port) {
case 0x60: case 0x60:
ret = kbd->out; ret = kbd->out;
@@ -1800,6 +1814,12 @@ kbd_read(uint16_t port, void *priv)
else else
ret &= ~0x10; ret &= ~0x10;
} }
if (romset == ROM_XI8088){
if (xi8088_turbo_get())
ret |= 0x04;
else
ret &= ~0x04;
}
break; break;
case 0x64: case 0x64:

6
src/machine/m_at_t3100e.c
View File

@@ -385,13 +385,11 @@ void t3100e_turbo_set(uint8_t value)
if (!value) if (!value)
{ {
int c = cpu; int c = cpu;
cpu = 0; /* 286/6 */ cpu_dynamic_switch(0); /* 286/6 */
cpu_set();
cpu = c;
} }
else else
{ {
cpu_set(); cpu_dynamic_switch(cpu);
} }
} }

7
src/machine/m_xt_t1000.c
View File

@@ -401,14 +401,11 @@ static void t1200_turbo_set(uint8_t value)
t1000.turbo = value; t1000.turbo = value;
if (!value) if (!value)
{ {
int c = cpu; cpu_dynamic_switch(0);
cpu = 0; /* 8088/4.77MHz */
cpu_set();
cpu = c;
} }
else else
{ {
cpu_set(); cpu_dynamic_switch(cpu);
} }
} }

4
src/machine/machine.h
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@@ -190,7 +190,11 @@ extern void machine_xt_laserxt_init(machine_t *);
extern void machine_xt_t1000_init(machine_t *); extern void machine_xt_t1000_init(machine_t *);
extern void machine_xt_t1200_init(machine_t *); extern void machine_xt_t1200_init(machine_t *);
extern void machine_xt_xi8088_init(machine_t *);
#ifdef EMU_DEVICE_H #ifdef EMU_DEVICE_H
extern device_t *xi8088_get_device(void);
extern device_t *pcjr_get_device(void); extern device_t *pcjr_get_device(void);
extern device_t *tandy1k_get_device(void); extern device_t *tandy1k_get_device(void);

3
src/machine/machine_table.c
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@@ -11,7 +11,7 @@
* NOTES: OpenAT wip for 286-class machine with open BIOS. * NOTES: OpenAT wip for 286-class machine with open BIOS.
* PS2_M80-486 wip, pending receipt of TRM's for machine. * PS2_M80-486 wip, pending receipt of TRM's for machine.
* *
* Version: @(#)machine_table.c 1.0.21 2018/03/02 * Version: @(#)machine_table.c 1.0.22 2018/03/02
* *
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/> * Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com> * Miran Grca, <mgrca8@gmail.com>
@@ -51,6 +51,7 @@ machine_t machines[] = {
#if defined(DEV_BRANCH) && defined(USE_LASERXT) #if defined(DEV_BRANCH) && defined(USE_LASERXT)
{ "[8088] VTech Laser Turbo XT", ROM_LTXT, "ltxt", {{"", cpus_8088}, {"", NULL}, {"", NULL}, {"", NULL}, {"", NULL}}, 0, MACHINE_ISA, 512, 512, 256, 0, machine_xt_laserxt_init, NULL, NULL }, { "[8088] VTech Laser Turbo XT", ROM_LTXT, "ltxt", {{"", cpus_8088}, {"", NULL}, {"", NULL}, {"", NULL}, {"", NULL}}, 0, MACHINE_ISA, 512, 512, 256, 0, machine_xt_laserxt_init, NULL, NULL },
#endif #endif
{ "[8088] Xi8088", ROM_XI8088, "xi8088", {{"", cpus_8088}, {"", NULL}, {"", NULL}, {"", NULL}, {"", NULL}}, 1, MACHINE_ISA | MACHINE_PS2, 64, 1024, 128, 127, machine_xt_xi8088_init, xi8088_get_device, nvr_at_close },
{ "[8086] Amstrad PC1512", ROM_PC1512, "pc1512", {{"", cpus_pc1512}, {"", NULL}, {"", NULL}, {"", NULL}, {"", NULL}}, 0, MACHINE_ISA | MACHINE_VIDEO | MACHINE_MOUSE, 512, 640, 128, 63, machine_amstrad_init, NULL, nvr_at_close }, { "[8086] Amstrad PC1512", ROM_PC1512, "pc1512", {{"", cpus_pc1512}, {"", NULL}, {"", NULL}, {"", NULL}, {"", NULL}}, 0, MACHINE_ISA | MACHINE_VIDEO | MACHINE_MOUSE, 512, 640, 128, 63, machine_amstrad_init, NULL, nvr_at_close },
{ "[8086] Amstrad PC1640", ROM_PC1640, "pc1640", {{"", cpus_8086}, {"", NULL}, {"", NULL}, {"", NULL}, {"", NULL}}, 0, MACHINE_ISA | MACHINE_VIDEO | MACHINE_MOUSE, 640, 640, 0, 63, machine_amstrad_init, NULL, nvr_at_close }, { "[8086] Amstrad PC1640", ROM_PC1640, "pc1640", {{"", cpus_8086}, {"", NULL}, {"", NULL}, {"", NULL}, {"", NULL}}, 0, MACHINE_ISA | MACHINE_VIDEO | MACHINE_MOUSE, 640, 640, 0, 63, machine_amstrad_init, NULL, nvr_at_close },

3
src/mem.c
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@@ -11,6 +11,7 @@
#include "cpu/x86_ops.h" #include "cpu/x86_ops.h"
#include "cpu/x86.h" #include "cpu/x86.h"
#include "machine/machine.h" #include "machine/machine.h"
#include "machine/m_xt_xi8088.h"
#include "config.h" #include "config.h"
#include "io.h" #include "io.h"
#include "mem.h" #include "mem.h"
@@ -1278,7 +1279,7 @@ void mem_set_mem_state(uint32_t base, uint32_t size, int state)
void mem_add_bios() 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[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); 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);

14
src/pc.c
View File

@@ -8,7 +8,7 @@
* *
* Main emulator module where most things are controlled. * Main emulator module where most things are controlled.
* *
* Version: @(#)pc.c 1.0.60 2018/02/24 * Version: @(#)pc.c 1.0.61 2018/03/02
* *
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/> * Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com> * Miran Grca, <mgrca8@gmail.com>
@@ -495,7 +495,7 @@ pc_full_speed(void)
if (! atfullspeed) { if (! atfullspeed) {
pclog("Set fullspeed - %i %i %i\n", is386, AT, cpuspeed2); pclog("Set fullspeed - %i %i %i\n", is386, AT, cpuspeed2);
if (AT) if (AT)
setpitclock(machines[machine].cpu[cpu_manufacturer].cpus[cpu].rspeed); setpitclock(machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].rspeed);
else else
setpitclock(14318184.0); setpitclock(14318184.0);
} }
@@ -509,7 +509,7 @@ void
pc_speed_changed(void) pc_speed_changed(void)
{ {
if (AT) if (AT)
setpitclock(machines[machine].cpu[cpu_manufacturer].cpus[cpu].rspeed); setpitclock(machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].rspeed);
else else
setpitclock(14318184.0); setpitclock(14318184.0);
@@ -886,7 +886,7 @@ pc_reset_hard_init(void)
cpu_cache_int_enabled = cpu_cache_ext_enabled = 0; cpu_cache_int_enabled = cpu_cache_ext_enabled = 0;
if (AT) if (AT)
setpitclock(machines[machine].cpu[cpu_manufacturer].cpus[cpu].rspeed); setpitclock(machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].rspeed);
else else
setpitclock(14318184.0); setpitclock(14318184.0);
} }
@@ -1019,7 +1019,7 @@ pc_thread(void *param)
/* Run a block of code. */ /* Run a block of code. */
startblit(); startblit();
clockrate = machines[machine].cpu[cpu_manufacturer].cpus[cpu].rspeed; clockrate = machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].rspeed;
if (is386) { if (is386) {
#ifdef USE_DYNAREC #ifdef USE_DYNAREC
@@ -1093,8 +1093,8 @@ pc_thread(void *param)
if (title_update) { if (title_update) {
mbstowcs(wmachine, machine_getname(), strlen(machine_getname())+1); mbstowcs(wmachine, machine_getname(), strlen(machine_getname())+1);
mbstowcs(wcpu, machines[machine].cpu[cpu_manufacturer].cpus[cpu].name, mbstowcs(wcpu, machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].name,
strlen(machines[machine].cpu[cpu_manufacturer].cpus[cpu].name)+1); strlen(machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].name)+1);
swprintf(temp, sizeof_w(temp), swprintf(temp, sizeof_w(temp),
L"%ls v%ls - %i%% - %ls - %ls - %ls", L"%ls v%ls - %i%% - %ls - %ls - %ls",
EMU_NAME_W,EMU_VERSION_W,fps,wmachine,wcpu, EMU_NAME_W,EMU_VERSION_W,fps,wmachine,wcpu,

2
src/pit.c
View File

@@ -51,7 +51,7 @@ void setpitclock(float clock)
bus_timing = clock/(double)cpu_busspeed; bus_timing = clock/(double)cpu_busspeed;
video_update_timing(); video_update_timing();
xt_cpu_multi = (int64_t)((14318184.0*(double)(1 << TIMER_SHIFT)) / (double)machines[machine].cpu[cpu_manufacturer].cpus[cpu].rspeed); xt_cpu_multi = (int64_t)((14318184.0*(double)(1 << TIMER_SHIFT)) / (double)machines[machine].cpu[cpu_manufacturer].cpus[cpu_effective].rspeed);
RTCCONST=clock/32768.0; RTCCONST=clock/32768.0;
TIMER_USEC = (int64_t)((clock / 1000000.0f) * (float)(1 << TIMER_SHIFT)); TIMER_USEC = (int64_t)((clock / 1000000.0f) * (float)(1 << TIMER_SHIFT));
device_speed_changed(); device_speed_changed();

56
src/rom.c
View File

@@ -13,7 +13,7 @@
* - c386sx16 BIOS fails checksum * - c386sx16 BIOS fails checksum
* - the loadfont() calls should be done elsewhere * - 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/> * Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com> * Miran Grca, <mgrca8@gmail.com>
@@ -35,6 +35,7 @@
#include "rom.h" #include "rom.h"
#include "video/video.h" /* for loadfont() */ #include "video/video.h" /* for loadfont() */
#include "plat.h" #include "plat.h"
#include "machine/m_xt_xi8088.h"
int romspresent[ROM_MAX]; 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. */ /* Load a ROM BIOS from its chips, interleaved mode. */
int int
rom_load_interleaved(wchar_t *fnl, wchar_t *fnh, uint32_t addr, int sz, int off, uint8_t *ptr) 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); 0x008000, 32768, 0, rom)) return(1);
break; 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 */ case ROM_IBMXT286: /* IBM PX-XT 286 */
if (rom_load_interleaved( if (rom_load_interleaved(
L"roms/machines/ibmxt286/bios_5162_21apr86_u34_78x7460_27256.bin", L"roms/machines/ibmxt286/bios_5162_21apr86_u34_78x7460_27256.bin",

4
src/rom.h
View File

@@ -8,7 +8,7 @@
* *
* Definitions for the ROM image handler. * Definitions for the ROM image handler.
* *
* Version: @(#)rom.h 1.0.15 2018/03/02 * Version: @(#)rom.h 1.0.16 2018/03/02
* *
* Author: Fred N. van Kempen, <decwiz@yahoo.com> * Author: Fred N. van Kempen, <decwiz@yahoo.com>
* Copyright 2018 Fred N. van Kempen. * Copyright 2018 Fred N. van Kempen.
@@ -55,6 +55,8 @@ enum {
ROM_T1000, ROM_T1000,
ROM_T1200, ROM_T1200,
ROM_XI8088,
ROM_IBMPCJR, ROM_IBMPCJR,
ROM_TANDY, ROM_TANDY,
ROM_TANDY1000HX, ROM_TANDY1000HX,

4
src/win/Makefile.mingw
View File

@@ -8,7 +8,7 @@
# #
# Makefile for Win32 (MinGW32) environment. # Makefile for Win32 (MinGW32) environment.
# #
# Version: @(#)Makefile.mingw 1.0.105 2018/03/02 # Version: @(#)Makefile.mingw 1.0.106 2018/03/02
# #
# Authors: Miran Grca, <mgrca8@gmail.com> # Authors: Miran Grca, <mgrca8@gmail.com>
# Fred N. van Kempen, <decwiz@yahoo.com> # Fred N. van Kempen, <decwiz@yahoo.com>
@@ -395,7 +395,7 @@ CPUOBJ := cpu.o cpu_table.o \
MCHOBJ := machine.o machine_table.o \ MCHOBJ := machine.o machine_table.o \
m_xt.o m_xt_compaq.o \ m_xt.o m_xt_compaq.o \
m_xt_t1000.o \ m_xt_t1000.o m_xt_xi8088.o \
m_pcjr.o \ m_pcjr.o \
m_amstrad.o \ m_amstrad.o \
m_europc.o m_europc_hdc.o \ m_europc.o m_europc_hdc.o \