*.o
+*.img
/m68kmake
/m68kmake.exe
/m68kops.c
unsigned char mouse_enabled, keyboard_enabled;
unsigned int loop_cycles;
+ unsigned int map_low, map_high;
+ unsigned int custom_low, custom_high;
};
struct platform_config {
char *subsys;
+ unsigned char id;
int (*custom_read)(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type);
int (*custom_write)(struct emulator_config *cfg, unsigned int addr, unsigned int val, unsigned char type);
#include "platforms/platforms.h"
#include "input/input.h"
+#include "platforms/amiga/amiga-registers.h"
+
//#define BCM2708_PERI_BASE 0x20000000 //pi0-1
//#define BCM2708_PERI_BASE 0xFE000000 //pi4
#define BCM2708_PERI_BASE 0x3F000000 // pi3
static unsigned int target = 0;
-unsigned int m68k_read_memory_8(unsigned int address) {
- if (cfg->platform->custom_read && cfg->platform->custom_read(cfg, address, &target, OP_TYPE_BYTE) != -1) {
- return target;
- }
+#define PLATFORM_CHECK_READ(a) \
+ if (address >= cfg->custom_low && address < cfg->custom_high) { \
+ unsigned int target = 0; \
+ switch(cfg->platform->id) { \
+ case PLATFORM_AMIGA: { \
+ if (custom_read_amiga(cfg, address, &target, a) != -1) { \
+ return target; \
+ } \
+ break; \
+ } \
+ default: \
+ break; \
+ } \
+ } \
+ if (ovl || (address >= cfg->map_low && address < cfg->map_high)) { \
+ if (handle_mapped_read(cfg, address, &target, a, ovl) != -1) \
+ return target; \
+ } \
- if (cfg) {
- int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_BYTE, ovl);
- if (ret != -1)
- return target;
- }
+unsigned int m68k_read_memory_8(unsigned int address) {
+ PLATFORM_CHECK_READ(OP_TYPE_BYTE);
address &=0xFFFFFF;
// if (address < 0xffffff) {
}
unsigned int m68k_read_memory_16(unsigned int address) {
- if (cfg->platform->custom_read && cfg->platform->custom_read(cfg, address, &target, OP_TYPE_WORD) != -1) {
- return target;
- }
-
- if (cfg) {
- int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_WORD, ovl);
- if (ret != -1)
- return target;
- }
+ PLATFORM_CHECK_READ(OP_TYPE_WORD);
if (mouse_hook_enabled) {
if (address == JOY0DAT) {
}
unsigned int m68k_read_memory_32(unsigned int address) {
- if (cfg->platform->custom_read && cfg->platform->custom_read(cfg, address, &target, OP_TYPE_LONGWORD) != -1) {
- return target;
- }
-
- if (cfg) {
- int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_LONGWORD, ovl);
- if (ret != -1)
- return target;
- }
+ PLATFORM_CHECK_READ(OP_TYPE_LONGWORD);
// if (address < 0xffffff) {
address &=0xFFFFFF;
// return 1;
}
-void m68k_write_memory_8(unsigned int address, unsigned int value) {
- if (cfg->platform->custom_write && cfg->platform->custom_write(cfg, address, value, OP_TYPE_BYTE) != -1) {
- return;
- }
+#define PLATFORM_CHECK_WRITE(a) \
+ if (address >= cfg->custom_low && address < cfg->custom_high) { \
+ switch(cfg->platform->id) { \
+ case PLATFORM_AMIGA: { \
+ if (custom_write_amiga(cfg, address, value, OP_TYPE_BYTE) != -1) { \
+ return; \
+ } \
+ break; \
+ } \
+ default: \
+ break; \
+ } \
+ } \
+ if (address >= cfg->map_low && address < cfg->map_high) { \
+ if (handle_mapped_write(cfg, address, value, OP_TYPE_BYTE, ovl) != -1) \
+ return; \
+ } \
- if (cfg) {
- int ret = handle_mapped_write(cfg, address, value, OP_TYPE_BYTE, ovl);
- if (ret != -1)
- return;
- }
+void m68k_write_memory_8(unsigned int address, unsigned int value) {
+ PLATFORM_CHECK_WRITE(OP_TYPE_BYTE);
if (address == 0xbfe001) {
ovl = (value & (1 << 0));
}
void m68k_write_memory_16(unsigned int address, unsigned int value) {
- if (cfg->platform->custom_write && cfg->platform->custom_write(cfg, address, value, OP_TYPE_WORD) != -1) {
- return;
- }
-
- if (cfg) {
- int ret = handle_mapped_write(cfg, address, value, OP_TYPE_WORD, ovl);
- if (ret != -1)
- return;
- }
+ PLATFORM_CHECK_WRITE(OP_TYPE_WORD);
// if (address < 0xffffff) {
address &=0xFFFFFF;
}
void m68k_write_memory_32(unsigned int address, unsigned int value) {
- if (cfg->platform->custom_write && cfg->platform->custom_write(cfg, address, value, OP_TYPE_LONGWORD) != -1) {
- return;
- }
-
- if (cfg) {
- int ret = handle_mapped_write(cfg, address, value, OP_TYPE_LONGWORD, ovl);
- if (ret != -1)
- return;
- }
+ PLATFORM_CHECK_WRITE(OP_TYPE_LONGWORD);
// if (address < 0xffffff) {
address &=0xFFFFFF;
// return;
}
-void write16(uint32_t address, uint32_t data) {
+inline void write16(uint32_t address, uint32_t data) {
uint32_t addr_h_s = (address & 0x0000ffff) << 8;
uint32_t addr_h_r = (~address & 0x0000ffff) << 8;
uint32_t addr_l_s = (address >> 16) << 8;
// asm volatile ("dmb" ::: "memory");
}
-void write8(uint32_t address, uint32_t data) {
+inline void write8(uint32_t address, uint32_t data) {
if ((address & 1) == 0)
data = data + (data << 8); // EVEN, A0=0,UDS
else
// asm volatile ("dmb" ::: "memory");
}
-uint32_t read16(uint32_t address) {
+inline uint32_t read16(uint32_t address) {
volatile int val;
uint32_t addr_h_s = (address & 0x0000ffff) << 8;
uint32_t addr_h_r = (~address & 0x0000ffff) << 8;
return (val >> 8) & 0xffff;
}
-uint32_t read8(uint32_t address) {
+inline uint32_t read8(uint32_t address) {
int val;
uint32_t addr_h_s = (address & 0x0000ffff) << 8;
uint32_t addr_h_r = (~address & 0x0000ffff) << 8;
"MEM",
};
-int handle_mapped_read(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type, unsigned char mirror) {
+inline int handle_mapped_read(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type, unsigned char mirror) {
unsigned char *read_addr = NULL;
char handle_regs = 0;
return -1;
}
-int handle_mapped_write(struct emulator_config *cfg, unsigned int addr, unsigned int value, unsigned char type, unsigned char mirror) {
+inline int handle_mapped_write(struct emulator_config *cfg, unsigned int addr, unsigned int value, unsigned char type, unsigned char mirror) {
unsigned char *write_addr = NULL;
char handle_regs = 0;
extern int ac_z3_done;
extern int ac_z3_type[AC_PIC_LIMIT];
extern int ac_z3_index[AC_PIC_LIMIT];
+extern int gayle_emulation_enabled;
char *z2_autoconf_id = "z2_autoconf_fast";
char *z2_autoconf_zap_id = "^2_autoconf_fast";
extern const char *op_type_names[OP_TYPE_NUM];
-int custom_read_amiga(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type) {
+inline int custom_read_amiga(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type) {
if (!ac_z2_done && addr >= AC_Z2_BASE && addr < AC_Z2_BASE + AC_SIZE) {
if (ac_z2_pic_count == 0) {
ac_z2_done = 1;
return -1;
}
-int custom_write_amiga(struct emulator_config *cfg, unsigned int addr, unsigned int val, unsigned char type) {
+inline int custom_write_amiga(struct emulator_config *cfg, unsigned int addr, unsigned int val, unsigned char type) {
if (!ac_z2_done && addr >= AC_Z2_BASE && addr < AC_Z2_BASE + AC_SIZE) {
if (type == OP_TYPE_BYTE) {
if (ac_z2_pic_count == 0) {
index = get_named_mapped_item(cfg, z3_autoconf_id);
if (index != -1)
goto more_z3_fast;
- for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i ++) {
+ for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
if (cfg->map_id[i] && strcmp(cfg->map_id[i], z3_autoconf_zap_id) == 0) {
cfg->map_id[i][0] = z3_autoconf_id[0];
}
}
+
+ // Set up the min/max ranges for mapped reads/writes
+ for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
+ if (cfg->map_type[i] != MAPTYPE_NONE) {
+ if ((cfg->map_offset[i] != 0 && cfg->map_offset[i] < cfg->map_low) || cfg->map_low == 0)
+ cfg->map_low = cfg->map_offset[i];
+ if (cfg->map_offset[i] + cfg->map_size[i] > cfg->map_high)
+ cfg->map_high = cfg->map_offset[i] + cfg->map_size[i];
+ }
+ }
+
+ if (gayle_emulation_enabled) {
+ cfg->custom_low = GAYLEBASE;
+ cfg->custom_high = GAYLEBASE + GAYLESIZE;
+ }
+
+ printf("Platform custom range: %.8X-%.8X\n", cfg->custom_low, cfg->custom_high);
+ printf("Platform mapped range: %.8X-%.8X\n", cfg->map_low, cfg->map_high);
return 0;
}
cfg->platform_initial_setup = setup_platform_amiga;
cfg->setvar = setvar_amiga;
+ cfg->id = PLATFORM_AMIGA;
if (subsys) {
cfg->subsys = malloc(strlen(subsys) + 1);
#include "../../Gayle.h"
#include "../../config_file/config_file.h"
-
-#define GAYLEBASE 0xD80000 // D7FFFF
-#define GAYLESIZE 0x6FFFF
-
-#define CLOCKBASE 0xDC0000
-#define CLOCKSIZE 0x010000
+#include "amiga-registers.h"
uint8_t rtc_emulation_enabled = 1;
+extern int gayle_emulation_enabled;
void configure_rtc_emulation_amiga(uint8_t enabled) {
if (enabled == rtc_emulation_enabled)
}
int handle_register_read_amiga(unsigned int addr, unsigned char type, unsigned int *val) {
- if (!rtc_emulation_enabled && addr >= CLOCKBASE && addr < CLOCKBASE + CLOCKSIZE)
- return -1;
- if (addr >= GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
- switch(type) {
- case OP_TYPE_BYTE:
- *val = readGayleB(addr);
- return 1;
- break;
- case OP_TYPE_WORD:
- *val = readGayle(addr);
- return 1;
- break;
- case OP_TYPE_LONGWORD:
- *val = readGayleL(addr);
- return 1;
- break;
- case OP_TYPE_MEM:
+ if (gayle_emulation_enabled) {
+ if (!rtc_emulation_enabled && addr >= CLOCKBASE && addr < CLOCKBASE + CLOCKSIZE)
return -1;
- break;
+ if (addr >= GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
+ switch(type) {
+ case OP_TYPE_BYTE:
+ *val = readGayleB(addr);
+ return 1;
+ break;
+ case OP_TYPE_WORD:
+ *val = readGayle(addr);
+ return 1;
+ break;
+ case OP_TYPE_LONGWORD:
+ *val = readGayleL(addr);
+ return 1;
+ break;
+ case OP_TYPE_MEM:
+ return -1;
+ break;
+ }
}
}
return -1;
}
int handle_register_write_amiga(unsigned int addr, unsigned int value, unsigned char type) {
- if (!rtc_emulation_enabled && addr >= CLOCKBASE && addr < CLOCKBASE + CLOCKSIZE)
- return -1;
- if (addr >= GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
- switch(type) {
- case OP_TYPE_BYTE:
- writeGayleB(addr, value);
- return 1;
- break;
- case OP_TYPE_WORD:
- writeGayle(addr, value);
- return 1;
- break;
- case OP_TYPE_LONGWORD:
- writeGayleL(addr, value);
- return 1;
- break;
- case OP_TYPE_MEM:
+ if (gayle_emulation_enabled) {
+ if (!rtc_emulation_enabled && addr >= CLOCKBASE && addr < CLOCKBASE + CLOCKSIZE)
return -1;
- break;
+ if (addr >= GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
+ switch(type) {
+ case OP_TYPE_BYTE:
+ writeGayleB(addr, value);
+ return 1;
+ break;
+ case OP_TYPE_WORD:
+ writeGayle(addr, value);
+ return 1;
+ break;
+ case OP_TYPE_LONGWORD:
+ writeGayleL(addr, value);
+ return 1;
+ break;
+ case OP_TYPE_MEM:
+ return -1;
+ break;
+ }
}
}
return -1;
void configure_rtc_emulation_amiga(uint8_t enabled);
void set_hard_drive_image_file_amiga(uint8_t index, char *filename);
+int custom_read_amiga(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type);
+int custom_write_amiga(struct emulator_config *cfg, unsigned int addr, unsigned int val, unsigned char type);
+
+#define GAYLEBASE 0xD80000
+#define GAYLESIZE 0x70000
+
+#define CLOCKBASE 0xDC0000
+#define CLOCKSIZE 0x010000