+// SPDX-License-Identifier: MIT
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include "../platforms.h"
+#include <ctype.h>
#include "amiga-autoconf.h"
#include "amiga-registers.h"
+#include "hunk-reloc.h"
+#include "net/pi-net-enums.h"
+#include "net/pi-net.h"
+#include "piscsi/piscsi-enums.h"
+#include "piscsi/piscsi.h"
+#include "pistorm-dev/pistorm-dev-enums.h"
+#include "pistorm-dev/pistorm-dev.h"
+#include "platforms/platforms.h"
+#include "platforms/shared/rtc.h"
+#include "rtg/rtg.h"
+#include "a314/a314.h"
+
+//#define DEBUG_AMIGA_PLATFORM
+
+#ifdef DEBUG_AMIGA_PLATFORM
+#define DEBUG printf
+#else
+#define DEBUG(...)
+#endif
int handle_register_read_amiga(unsigned int addr, unsigned char type, unsigned int *val);
int handle_register_write_amiga(unsigned int addr, unsigned int value, unsigned char type);
+extern int ac_z2_current_pic;
extern int ac_z2_done;
extern int ac_z2_pic_count;
extern int ac_z2_type[AC_PIC_LIMIT];
extern int ac_z2_index[AC_PIC_LIMIT];
+extern int ac_z3_current_pic;
extern int ac_z3_pic_count;
extern int ac_z3_done;
extern int ac_z3_type[AC_PIC_LIMIT];
char *z3_autoconf_zap_id = "^3_autoconf_fast";
extern const char *op_type_names[OP_TYPE_NUM];
+extern uint8_t cdtv_mode;
+extern uint8_t rtc_type;
+extern unsigned char cdtv_sram[32 * SIZE_KILO];
+extern unsigned int a314_base;
#define min(a, b) (a < b) ? a : b
#define max(a, b) (a > b) ? a : b
+uint8_t rtg_enabled = 0, piscsi_enabled = 0, pinet_enabled = 0, kick13_mode = 0, pistorm_dev_enabled = 1;
+uint8_t a314_emulation_enabled = 0;
+
+extern uint32_t piscsi_base, pistorm_dev_base;
+
+extern void stop_cpu_emulation(uint8_t disasm_cur);
+
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;
+ if (kick13_mode)
+ ac_z3_done = 1;
+
+ if ((!ac_z2_done || !ac_z3_done) && addr >= AC_Z2_BASE && addr < AC_Z2_BASE + AC_SIZE) {
+ if (!ac_z2_done && ac_z2_current_pic < ac_z2_pic_count) {
+ if (type == OP_TYPE_BYTE) {
+ *val = autoconfig_read_memory_8(cfg, addr - AC_Z2_BASE);
+ return 1;
+ }
+ printf("Unexpected %s read from Z2 autoconf addr %.X\n", op_type_names[type], addr - AC_Z2_BASE);
return -1;
}
-
- if (type == OP_TYPE_BYTE) {
- *val = autoconfig_read_memory_8(cfg, addr);
- return 1;
+ if (!ac_z3_done && ac_z3_current_pic < ac_z3_pic_count) {
+ uint32_t addr_ = addr - AC_Z2_BASE;
+ if (addr_ & 0x02) {
+ addr_ = (addr_ - 2) + 0x100;
+ }
+ if (type == OP_TYPE_BYTE) {
+ *val = autoconfig_read_memory_z3_8(cfg, addr_ - AC_Z2_BASE);
+ return 1;
+ }
+ printf("Unexpected %s read from Z3 autoconf addr %.X\n", op_type_names[type], addr - AC_Z2_BASE);
+ return -1;
}
}
if (!ac_z3_done && addr >= AC_Z3_BASE && addr < AC_Z3_BASE + AC_SIZE) {
}
if (type == OP_TYPE_BYTE) {
- *val = autoconfig_read_memory_z3_8(cfg, addr);
+ *val = autoconfig_read_memory_z3_8(cfg, addr - AC_Z3_BASE);
return 1;
}
- else {
- printf("Unexpected %s read from Z3 autoconf addr %.X\n", op_type_names[type], addr - AC_Z3_BASE);
- //stop_emulation();
+ printf("Unexpected %s read from Z3 autoconf addr %.X\n", op_type_names[type], addr - AC_Z3_BASE);
+ return -1;
+ }
+
+ if (pistorm_dev_enabled && addr >= pistorm_dev_base && addr < pistorm_dev_base + (64 * SIZE_KILO)) {
+ *val = handle_pistorm_dev_read(addr, type);
+ return 1;
+ }
+
+ if (piscsi_enabled && addr >= piscsi_base && addr < piscsi_base + (64 * SIZE_KILO)) {
+ //printf("[Amiga-Custom] %s read from PISCSI base @$%.8X.\n", op_type_names[type], addr);
+ //stop_cpu_emulation(1);
+ *val = handle_piscsi_read(addr, type);
+ return 1;
+ }
+
+ if (a314_emulation_enabled && addr >= a314_base && addr < a314_base + (64 * SIZE_KILO)) {
+ //printf("%s read from A314 @$%.8X\n", op_type_names[type], addr);
+ switch (type) {
+ case OP_TYPE_BYTE:
+ *val = a314_read_memory_8(addr - a314_base);
+ return 1;
+ break;
+ case OP_TYPE_WORD:
+ *val = a314_read_memory_16(addr - a314_base);
+ return 1;
+ break;
+ case OP_TYPE_LONGWORD:
+ *val = a314_read_memory_32(addr - a314_base);
+ return 1;
+ break;
+ default:
+ break;
}
+ return 1;
}
return -1;
}
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) {
- ac_z2_done = 1;
- return -1;
- }
+ if (kick13_mode)
+ ac_z3_done = 1;
- //printf("Write to Z2 autoconf area.\n");
- autoconfig_write_memory_8(cfg, addr, val);
- return 1;
+ if ((!ac_z2_done || !ac_z3_done) && addr >= AC_Z2_BASE && addr < AC_Z2_BASE + AC_SIZE) {
+ if (!ac_z2_done && ac_z2_current_pic < ac_z2_pic_count) {
+ if (type == OP_TYPE_BYTE) {
+ autoconfig_write_memory_8(cfg, addr - AC_Z2_BASE, val);
+ return 1;
+ }
+ printf("Unexpected %s write to Z2 autoconf addr %.X\n", op_type_names[type], addr - AC_Z2_BASE);
+ return -1;
+ }
+ if (!ac_z3_done && ac_z3_current_pic < ac_z3_pic_count) {
+ uint32_t addr_ = addr - AC_Z2_BASE;
+ if (addr_ & 0x02) {
+ addr_ = (addr_ - 2) + 0x100;
+ }
+ if (type == OP_TYPE_BYTE) {
+ autoconfig_write_memory_z3_8(cfg, addr_ - AC_Z2_BASE, val);
+ return 1;
+ }
+ else if (type == OP_TYPE_WORD) {
+ autoconfig_write_memory_z3_16(cfg, addr_ - AC_Z2_BASE, val);
+ return 1;
+ }
+ printf("Unexpected %s write to Z3 autoconf addr %.X\n", op_type_names[type], addr - AC_Z2_BASE);
+ return -1;
}
}
}
//printf("Write to autoconf area.\n");
- autoconfig_write_memory_z3_8(cfg, addr, val);
+ autoconfig_write_memory_z3_8(cfg, addr - AC_Z3_BASE, val);
return 1;
}
else if (type == OP_TYPE_WORD) {
- autoconfig_write_memory_z3_16(cfg, addr, val);
+ autoconfig_write_memory_z3_16(cfg, addr - AC_Z3_BASE, val);
return 1;
}
else {
}
}
+ if (pistorm_dev_enabled && addr >= pistorm_dev_base && addr < pistorm_dev_base + (64 * SIZE_KILO)) {
+ handle_pistorm_dev_write(addr, val, type);
+ return 1;
+ }
+
+ if (piscsi_enabled && addr >= piscsi_base && addr < piscsi_base + (64 * SIZE_KILO)) {
+ //printf("[Amiga-Custom] %s write to PISCSI base @$%.8x: %.8X\n", op_type_names[type], addr, val);
+ handle_piscsi_write(addr, val, type);
+ return 1;
+ }
+
+ if (a314_emulation_enabled && addr >= a314_base && addr < a314_base + (64 * SIZE_KILO)) {
+ //printf("%s write to A314 @$%.8X: %d\n", op_type_names[type], addr, val);
+ switch (type) {
+ case OP_TYPE_BYTE:
+ a314_write_memory_8(addr - a314_base, val);
+ return 1;
+ break;
+ case OP_TYPE_WORD:
+ // Not implemented in a314.cc
+ //a314_write_memory_16(addr, val);
+ return -1;
+ break;
+ case OP_TYPE_LONGWORD:
+ // Not implemented in a314.cc
+ // a314_write_memory_32(addr, val);
+ return -1;
+ break;
+ default:
+ break;
+ }
+ }
+
return -1;
}
cfg->custom_low = 0;
// Set up the min/max ranges for mapped reads/writes
- if (gayle_emulation_enabled) {
- cfg->mapped_low = GAYLEBASE;
- cfg->mapped_high = GAYLEBASE + GAYLESIZE;
- }
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->mapped_low) || cfg->mapped_low == 0)
}
}
- if (ac_z2_pic_count && !ac_z2_done) {
+ if ((ac_z2_pic_count || ac_z3_pic_count) && (!ac_z2_done || !ac_z3_done)) {
if (cfg->custom_low == 0)
cfg->custom_low = AC_Z2_BASE;
else
cfg->custom_low = min(cfg->custom_low, AC_Z2_BASE);
cfg->custom_high = max(cfg->custom_high, AC_Z2_BASE + AC_SIZE);
}
- if (ac_z3_pic_count && !ac_z3_done) {
+ /*if (ac_z3_pic_count && !ac_z3_done) {
if (cfg->custom_low == 0)
cfg->custom_low = AC_Z3_BASE;
else
cfg->custom_low = min(cfg->custom_low, AC_Z3_BASE);
cfg->custom_high = max(cfg->custom_high, AC_Z3_BASE + AC_SIZE);
+ }*/
+ if (rtg_enabled) {
+ if (cfg->custom_low == 0)
+ cfg->custom_low = PIGFX_RTG_BASE;
+ else
+ cfg->custom_low = min(cfg->custom_low, PIGFX_RTG_BASE);
+ cfg->custom_high = max(cfg->custom_high, PIGFX_UPPER);
+ }
+ if (piscsi_enabled) {
+ if (cfg->custom_low == 0)
+ cfg->custom_low = PISCSI_OFFSET;
+ else
+ cfg->custom_low = min(cfg->custom_low, PISCSI_OFFSET);
+ cfg->custom_high = max(cfg->custom_high, PISCSI_UPPER);
+ if (piscsi_base != 0) {
+ cfg->custom_low = min(cfg->custom_low, piscsi_base);
+ }
+ }
+ if (pinet_enabled) {
+ if (cfg->custom_low == 0)
+ cfg->custom_low = PINET_OFFSET;
+ else
+ cfg->custom_low = min(cfg->custom_low, PINET_OFFSET);
+ cfg->custom_high = max(cfg->custom_high, PINET_UPPER);
}
printf("Platform custom range: %.8X-%.8X\n", cfg->custom_low, cfg->custom_high);
}
int setup_platform_amiga(struct emulator_config *cfg) {
- if (cfg) {}
printf("Performing setup for Amiga platform.\n");
+
+ if (strlen(cfg->platform->subsys)) {
+ printf("Subsystem is [%s]\n", cfg->platform->subsys);
+ if (strcmp(cfg->platform->subsys, "4000") == 0 || strcmp(cfg->platform->subsys, "3000") == 0) {
+ printf("Adjusting Gayle accesses for A3000/4000 Kickstart.\n");
+ adjust_gayle_4000();
+ }
+ else if (strcmp(cfg->platform->subsys, "1200") == 0 || strcmp(cfg->platform->subsys, "cd32") == 0) {
+ printf("Adjusting Gayle accesses for A1200/CD32 Kickstart.\n");
+ adjust_gayle_1200();
+ }
+ else if (strcmp(cfg->platform->subsys, "cdtv") == 0) {
+ printf("Configuring platform for CDTV emulation.\n");
+ cdtv_mode = 1;
+ rtc_type = RTC_TYPE_MSM;
+ }
+ }
+ else
+ printf("No sub system specified.\n");
+
// Look for Z2 autoconf Fast RAM by id
int index = get_named_mapped_item(cfg, z2_autoconf_id);
more_z2_fast:;
cfg->map_id[index][0] = '^';
int resize_data = 0;
if (cfg->map_size[index] > 8 * SIZE_MEGA) {
- printf("Attempted to configure more than 8MB of Z2 Fast RAM, downsizng to 8MB.\n");
+ printf("Attempted to configure more than 8MB of Z2 Fast RAM, downsizing to 8MB.\n");
resize_data = 8 * SIZE_MEGA;
}
else if(cfg->map_size[index] != 2 * SIZE_MEGA && cfg->map_size[index] != 4 * SIZE_MEGA && cfg->map_size[index] != 8 * SIZE_MEGA) {
cfg->map_data[index] = (unsigned char *)malloc(cfg->map_size[index]);
}
printf("%dMB of Z2 Fast RAM configured at $%lx\n", cfg->map_size[index] / SIZE_MEGA, cfg->map_offset[index]);
- ac_z2_type[ac_z2_pic_count] = ACTYPE_MAPFAST_Z2;
- ac_z2_index[ac_z2_pic_count] = index;
- ac_z2_pic_count++;
+ add_z2_pic(ACTYPE_MAPFAST_Z2, index);
+ //ac_z2_type[ac_z2_pic_count] = ACTYPE_MAPFAST_Z2;
+ //ac_z2_index[ac_z2_pic_count] = index;
+ //ac_z2_pic_count++;
}
else
printf("No Z2 Fast RAM configured.\n");
index = get_named_mapped_item(cfg, z2_autoconf_id);
if (index != -1)
goto more_z2_fast;
-
+
for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i ++) {
// Restore any "zapped" autoconf items so they can be reinitialized if needed.
if (cfg->map_id[i] && strcmp(cfg->map_id[i], z2_autoconf_zap_id) == 0) {
}
}
+ index = get_named_mapped_item(cfg, "cpu_slot_ram");
+ if (index != -1) {
+ m68k_add_ram_range((uint32_t)cfg->map_offset[index], (uint32_t)cfg->map_high[index], cfg->map_data[index]);
+ }
+
adjust_ranges_amiga(cfg);
-
+
+ if (cdtv_mode) {
+ FILE *in = fopen("data/cdtv.sram", "rb");
+ if (in != NULL) {
+ printf("Loaded CDTV SRAM.\n");
+ fread(cdtv_sram, 32 * SIZE_KILO, 1, in);
+ fclose(in);
+ }
+ }
+
+ if (pistorm_dev_enabled) {
+ add_z2_pic(ACTYPE_PISTORM_DEV, 0);
+ }
+
return 0;
}
-void setvar_amiga(char *var, char *val) {
+#define CHKVAR(a) (strcmp(var, a) == 0)
+
+void setvar_amiga(struct emulator_config *cfg, char *var, char *val) {
if (!var)
return;
- if (strcmp(var, "enable_rtc_emulation") == 0) {
+ if CHKVAR("enable_rtc_emulation") {
int8_t rtc_enabled = 0;
if (!val || strlen(val) == 0)
rtc_enabled = 1;
configure_rtc_emulation_amiga(rtc_enabled);
}
}
- if (strcmp(var, "hdd0") == 0) {
+ if CHKVAR("hdd0") {
if (val && strlen(val) != 0)
set_hard_drive_image_file_amiga(0, val);
}
+ if CHKVAR("hdd1") {
+ if (val && strlen(val) != 0)
+ set_hard_drive_image_file_amiga(1, val);
+ }
+ if CHKVAR("cdtv") {
+ printf("[AMIGA] CDTV mode enabled.\n");
+ cdtv_mode = 1;
+ }
+ if (CHKVAR("rtg") && !rtg_enabled) {
+ if (init_rtg_data(cfg)) {
+ printf("[AMIGA] RTG Enabled.\n");
+ rtg_enabled = 1;
+ adjust_ranges_amiga(cfg);
+ }
+ else
+ printf("[AMIGA} Failed to enable RTG.\n");
+ }
+ if CHKVAR("kick13") {
+ printf("[AMIGA] Kickstart 1.3 mode enabled, Z3 PICs will not be enumerated.\n");
+ kick13_mode = 1;
+ }
+ if CHKVAR("a314") {
+ int32_t res = a314_init();
+ if (res != 0) {
+ printf("[AMIGA] Failed to enable A314 emulation, error return code: %d.\n", res);
+ } else {
+ printf("[AMIGA] A314 emulation enabled.\n");
+ add_z2_pic(ACTYPE_A314, 0);
+ a314_emulation_enabled = 1;
+ }
+ }
+ if CHKVAR("a314_conf") {
+ if (val && strlen(val) != 0) {
+ a314_set_config_file(val);
+ }
+ }
+
+ // PiSCSI stuff
+ if (CHKVAR("piscsi") && !piscsi_enabled) {
+ printf("[AMIGA] PISCSI Interface Enabled.\n");
+ piscsi_enabled = 1;
+ piscsi_init();
+ add_z2_pic(ACTYPE_PISCSI, 0);
+ adjust_ranges_amiga(cfg);
+ }
+ if (piscsi_enabled) {
+ if CHKVAR("piscsi0") {
+ piscsi_map_drive(val, 0);
+ }
+ if CHKVAR("piscsi1") {
+ piscsi_map_drive(val, 1);
+ }
+ if CHKVAR("piscsi2") {
+ piscsi_map_drive(val, 2);
+ }
+ if CHKVAR("piscsi3") {
+ piscsi_map_drive(val, 3);
+ }
+ if CHKVAR("piscsi4") {
+ piscsi_map_drive(val, 4);
+ }
+ if CHKVAR("piscsi5") {
+ piscsi_map_drive(val, 5);
+ }
+ if CHKVAR("piscsi6") {
+ piscsi_map_drive(val, 6);
+ }
+ }
+
+ // Pi-Net stuff
+ if (CHKVAR("pi-net")&& !pinet_enabled) {
+ printf("[AMIGA] PI-NET Interface Enabled.\n");
+ pinet_enabled = 1;
+ pinet_init(val);
+ adjust_ranges_amiga(cfg);
+ }
+
+ if CHKVAR("no-pistorm-dev") {
+ pistorm_dev_enabled = 0;
+ printf("[AMIGA] Disabling PiStorm interaction device.\n");
+ }
+
+ // RTC stuff
+ if CHKVAR("rtc_type") {
+ if (val && strlen(val) != 0) {
+ if (strcmp(val, "msm") == 0) {
+ printf("[AMIGA] RTC type set to MSM.\n");
+ rtc_type = RTC_TYPE_MSM;
+ }
+ else {
+ printf("[AMIGA] RTC type set to Ricoh.\n");
+ rtc_type = RTC_TYPE_RICOH;
+ }
+ }
+ }
}
void handle_reset_amiga(struct emulator_config *cfg) {
- ac_z3_done = 0;
- ac_z2_done = 0;
+ ac_z2_done = (ac_z2_pic_count == 0);
+ ac_z3_done = (ac_z3_pic_count == 0);
+ ac_z2_current_pic = 0;
+ ac_z3_current_pic = 0;
+
+ DEBUG("[AMIGA] Reset handler.\n");
+ DEBUG("[AMIGA] AC done - Z2: %d Z3: %d.\n", ac_z2_done, ac_z3_done);
+
+ if (piscsi_enabled)
+ piscsi_refresh_drives();
adjust_ranges_amiga(cfg);
}
+void shutdown_platform_amiga(struct emulator_config *cfg) {
+ if (cfg) {}
+ if (cdtv_mode) {
+ FILE *out = fopen("data/cdtv.sram", "wb+");
+ if (out != NULL) {
+ printf("Saving CDTV SRAM.\n");
+ fwrite(cdtv_sram, 32 * SIZE_KILO, 1, out);
+ fclose(out);
+ }
+ else {
+ printf("Failed to write CDTV SRAM to disk.\n");
+ }
+ }
+ if (cfg->platform->subsys) {
+ free(cfg->platform->subsys);
+ }
+ if (piscsi_enabled) {
+ piscsi_shutdown();
+ piscsi_enabled = 0;
+ }
+ if (rtg_enabled) {
+ shutdown_rtg();
+ rtg_enabled = 0;
+ }
+ if (pinet_enabled) {
+ pinet_enabled = 0;
+ }
+ if (a314_emulation_enabled) {
+ a314_emulation_enabled = 0;
+ }
+
+ cdtv_mode = 0;
+
+ autoconfig_reset_all();
+ printf("[AMIGA] Platform shutdown completed.\n");
+}
+
void create_platform_amiga(struct platform_config *cfg, char *subsys) {
cfg->register_read = handle_register_read_amiga;
cfg->register_write = handle_register_write_amiga;
cfg->custom_write = custom_write_amiga;
cfg->platform_initial_setup = setup_platform_amiga;
cfg->handle_reset = handle_reset_amiga;
+ cfg->shutdown = shutdown_platform_amiga;
cfg->setvar = setvar_amiga;
cfg->id = PLATFORM_AMIGA;
if (subsys) {
cfg->subsys = malloc(strlen(subsys) + 1);
strcpy(cfg->subsys, subsys);
+ for (unsigned int i = 0; i < strlen(cfg->subsys); i++) {
+ cfg->subsys[i] = tolower(cfg->subsys[i]);
+ }
}
}
projects / pistorm / blobdiff