-#include "../platforms.h"
+// SPDX-License-Identifier: MIT
+
+#include "platforms/platforms.h"
+#include "pistorm-dev/pistorm-dev-enums.h"
#include "amiga-autoconf.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include "a314/a314.h"
+
+#define Z2_Z2 0xC
+#define Z2_FAST 0x2
+#define Z2_BOOTROM 0x1
+// PiStorm Zorro II AutoConfig Fast RAM ROM
static unsigned char ac_fast_ram_rom[] = {
- 0xe, AC_MEM_SIZE_8MB, // 00/02, link into memory free list, 8 MB
- 0x6, 0x9, // 04/06, product id
+ Z2_Z2 | Z2_FAST, AC_MEM_SIZE_8MB, // 00/02, link into memory free list, 8 MB
+ 0x6, 0x9, // 06/09, product id
0x8, 0x0, // 08/0a, preference to 8 MB space
0x0, 0x0, // 0c/0e, reserved
- 0x0, 0x7, 0xd, 0xb, // 10/12/14/16, mfg id
- 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x2, 0x0 // 18/.../26, serial
+ PISTORM_AC_MANUF_ID, // Manufacturer ID
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x2, 0x0, // 18/.../26, serial
+ 0x0, 0x0, 0x0, 0x0, // Optional BOOT ROM vector
+};
+
+// PiSCSI AutoConfig Device ROM
+unsigned char ac_piscsi_rom[] = {
+ Z2_Z2 | Z2_BOOTROM, AC_MEM_SIZE_64KB, // 00/01, Z2, bootrom, 64 KB
+ 0x6, 0xA, // 06/0A, product id
+ 0x0, 0x0, // 00/0a, any space where it fits
+ 0x0, 0x0, // 0c/0e, reserved
+ PISTORM_AC_MANUF_ID, // Manufacturer ID
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x2, 0x1, // 18/.../26, serial
+ 0x4, 0x0, 0x0, 0x0, // Optional BOOT ROM vector
};
+// PiStorm Device Interaction ROM
+unsigned char ac_pistorm_rom[] = {
+ Z2_Z2, AC_MEM_SIZE_64KB, // 00/01, Z2, bootrom, 64 KB
+ 0x6, 0xB, // 06/0B, product id
+ 0x0, 0x0, // 00/0a, any space where it fits
+ 0x0, 0x0, // 0c/0e, reserved
+ PISTORM_AC_MANUF_ID, // Manufacturer ID
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x2, 0x2, // 18/.../26, serial
+ 0x4, 0x0, 0x0, 0x0, // Optional BOOT ROM vector
+};
+
+// A314 Emulation ROM
static unsigned char ac_a314_rom[] = {
0xc, AC_MEM_SIZE_64KB, // 00/02, 64 kB
0xa, 0x3, // 04/06, product id
0x0, 0x0, // 08/0a, any space okay
0x0, 0x0, // 0c/0e, reserved
0x0, 0x7, 0xd, 0xb, // 10/12/14/16, mfg id
- 0xa, 0x3, 0x1, 0x4, 0x0, 0x0, 0x0, 0x0 // 18/.../26, serial
+ 0xa, 0x3, 0x1, 0x4, 0x0, 0x0, 0x0, 0x0, // 18/.../26, serial
+ 0x0, 0x0, 0x0, 0x0, // Optional BOOT ROM vector
};
-int ac_current_pic = 0;
-int ac_pic_count = 0;
-int ac_done = 0;
-int ac_type[AC_PIC_LIMIT];
-int ac_index[AC_PIC_LIMIT];
+extern unsigned int a314_base;
+
+int ac_z2_current_pic = 0;
+int ac_z2_pic_count = 0;
+int ac_z2_done = 0;
+int ac_z2_type[AC_PIC_LIMIT];
+int ac_z2_index[AC_PIC_LIMIT];
unsigned int ac_base[AC_PIC_LIMIT];
+int ac_z3_current_pic = 0;
+int ac_z3_pic_count = 0;
+int ac_z3_done = 0;
+int ac_z3_type[AC_PIC_LIMIT];
+int ac_z3_index[AC_PIC_LIMIT];
+
+uint32_t piscsi_base = 0, pistorm_dev_base = 0;
+extern uint8_t *piscsi_rom_ptr;
+
unsigned char get_autoconf_size(int size) {
if (size == 8 * SIZE_MEGA)
return AC_MEM_SIZE_8MB;
return AC_MEM_SIZE_64KB;
}
-unsigned int autoconfig_read_memory_8(struct emulator_config *cfg, unsigned int address_) {
+unsigned char get_autoconf_size_ext(int size) {
+ if (size == 16 * SIZE_MEGA)
+ return AC_MEM_SIZE_EXT_16MB;
+ if (size == 32 * SIZE_MEGA)
+ return AC_MEM_SIZE_EXT_32MB;
+ if (size == 64 * SIZE_MEGA)
+ return AC_MEM_SIZE_EXT_64MB;
+ if (size == 128 * SIZE_MEGA)
+ return AC_MEM_SIZE_EXT_128MB;
+ if (size == 256 * SIZE_MEGA)
+ return AC_MEM_SIZE_EXT_256MB;
+ if (size == 512 * SIZE_MEGA)
+ return AC_MEM_SIZE_EXT_512MB;
+ if (size == 1024 * SIZE_MEGA)
+ return AC_MEM_SIZE_EXT_1024MB;
+ else
+ return AC_MEM_SIZE_EXT_64MB;
+}
+
+extern void adjust_ranges_amiga(struct emulator_config *cfg);
+
+void autoconfig_reset_all() {
+ printf("[AUTOCONF] Resetting all autoconf data.\n");
+ for (int i = 0; i < AC_PIC_LIMIT; i++) {
+ ac_z2_type[i] = ACTYPE_NONE;
+ ac_z3_type[i] = ACTYPE_NONE;
+ ac_z2_index[i] = 0;
+ ac_z3_index[i] = 0;
+ }
+ ac_z3_pic_count = 0;
+ ac_z2_pic_count = 0;
+ ac_z2_current_pic = 0;
+ ac_z3_current_pic = 0;
+}
+
+unsigned int autoconfig_read_memory_z3_8(struct emulator_config *cfg, unsigned int address) {
+ int index = ac_z3_index[ac_z3_current_pic];
+ unsigned char val = 0;
+
+ if ((address & 0xFF) >= AC_Z3_REG_RES50 && (address & 0xFF) <= AC_Z3_REG_RES7C) {
+ val = 0;
+ }
+ else {
+ switch(address & 0xFF) {
+ case AC_Z3_REG_ER_TYPE:
+ val |= BOARDTYPE_Z3;
+ if (cfg->map_type[index] == MAPTYPE_RAM)
+ val |= BOARDTYPE_FREEMEM;
+ if (cfg->map_size[index] > 8 * SIZE_MEGA)
+ val |= get_autoconf_size_ext(cfg->map_size[index]);
+ else
+ val |= get_autoconf_size(cfg->map_size[index]);
+ if (ac_z3_current_pic + 1 < ac_z3_pic_count)
+ val |= BOARDTYPE_LINKED;
+ // Pre-invert this value, since it's the only value not physically complemented
+ // for Zorro III.
+ val ^= 0xFF;
+ break;
+ case AC_Z3_REG_ER_PRODUCT:
+ // 1.1... maybe...
+ val = 0x11;
+ break;
+ case AC_Z3_REG_ER_FLAGS:
+ if (cfg->map_type[index] == MAPTYPE_RAM)
+ val |= Z3_FLAGS_MEMORY;
+ if (cfg->map_size[index] > 8 * SIZE_MEGA)
+ val |= Z3_FLAGS_EXTENSION;
+ val |= Z3_FLAGS_RESERVED;
+ // Bottom four bits are zero, useless unles you want really odd RAM sizes.
+ break;
+ // Manufacturer ID low/high bytes.
+ case AC_Z3_REG_MAN_LO:
+ val = PISTORM_MANUF_ID & 0x00FF;
+ break;
+ case AC_Z3_REG_MAN_HI:
+ val = (PISTORM_MANUF_ID >> 8);
+ break;
+ case AC_Z3_REG_SER_BYTE0:
+ case AC_Z3_REG_SER_BYTE1:
+ case AC_Z3_REG_SER_BYTE2:
+ case AC_Z3_REG_SER_BYTE3:
+ // Expansion board serial assigned by manufacturer.
+ val = 0;
+ break;
+ case AC_Z3_REG_INIT_DIAG_VEC_LO:
+ case AC_Z3_REG_INIT_DIAG_VEC_HI:
+ // 16-bit offset to boot ROM in assigned memory range.
+ val = 0;
+ break;
+ // Additional reserved/unused registers.
+ case AC_Z3_REG_ER_RES03:
+ case AC_Z3_REG_ER_RES0D:
+ case AC_Z3_REG_ER_RES0E:
+ case AC_Z3_REG_ER_RES0F:
+ case AC_Z3_REG_ER_Z2_INT:
+ val = 0;
+ break;
+ default:
+ val = 0;
+ break;
+ }
+ }
+ //printf("Read byte %d from Z3 autoconf for PIC %d (%.2X).\n", address, ac_z3_current_pic, val);
+ return (address & 0x100) ? (val << 4) ^ 0xFF : (val & 0xF0) ^ 0xFF;
+}
+
+int nib_latch = 0;
+
+void autoconfig_write_memory_z3_8(struct emulator_config *cfg, unsigned int address, unsigned int value) {
+ int index = ac_z3_index[ac_z3_current_pic];
+ unsigned char val = (unsigned char)value;
+ int done = 0;
+
+ switch(address & 0xFF) {
+ case AC_Z3_REG_WR_ADDR_LO:
+ if (nib_latch) {
+ ac_base[ac_z3_current_pic] = (ac_base[ac_z3_current_pic] & 0xFF0F0000) | ((val & 0xF0) << 16);
+ nib_latch = 0;
+ }
+ else
+ ac_base[ac_z3_current_pic] = (ac_base[ac_z3_current_pic] & 0xFF000000) | (val << 16);
+ break;
+ case AC_Z3_REG_WR_ADDR_HI:
+ if (nib_latch) {
+ ac_base[ac_z3_current_pic] = (ac_base[ac_z3_current_pic] & 0x0FFF0000) | ((val & 0xF0) << 24);
+ nib_latch = 0;
+ }
+ ac_base[ac_z3_current_pic] = (ac_base[ac_z3_current_pic] & 0x00FF0000) | (val << 24);
+ done = 1;
+ break;
+ case AC_Z3_REG_WR_ADDR_NIB_LO:
+ ac_base[ac_z3_current_pic] = (ac_base[ac_z3_current_pic] & 0xFFF00000) | ((val & 0xF0) << 12);
+ nib_latch = 1;
+ break;
+ case AC_Z3_REG_WR_ADDR_NIB_HI:
+ ac_base[ac_z3_current_pic] = (ac_base[ac_z3_current_pic] & 0xF0FF0000) | ((val & 0xF0) << 20);
+ nib_latch = 1;
+ break;
+ case AC_Z3_REG_SHUTUP:
+ //printf("Write to Z3 shutup register for PIC %d.\n", ac_z3_current_pic);
+ done = 1;
+ break;
+ default:
+ break;
+ }
+
+ if (done) {
+ nib_latch = 0;
+ printf("[AUTOCONF] Address of Z3 autoconf RAM assigned to $%.8x [B]\n", ac_base[ac_z3_current_pic]);
+ cfg->map_offset[index] = ac_base[ac_z3_current_pic];
+ cfg->map_high[index] = cfg->map_offset[index] + cfg->map_size[index];
+ m68k_add_ram_range(cfg->map_offset[index], cfg->map_high[index], cfg->map_data[index]);
+ ac_z3_current_pic++;
+ if (ac_z3_current_pic == ac_z3_pic_count) {
+ ac_z3_done = 1;
+ adjust_ranges_amiga(cfg);
+ }
+ }
+
+ return;
+}
+
+void autoconfig_write_memory_z3_16(struct emulator_config *cfg, unsigned int address, unsigned int value) {
+ int index = ac_z3_index[ac_z3_current_pic];
+ unsigned short val = (unsigned short)value;
+ int done = 0;
+
+ switch(address & 0xFF) {
+ case AC_Z3_REG_WR_ADDR_HI:
+ // This is, as far as I know, the only register it should write a 16-bit value to.
+ ac_base[ac_z3_current_pic] = (ac_base[ac_z3_current_pic] & 0x00000000) | (val << 16);
+ done = 1;
+ break;
+ default:
+ printf("Unknown WORD write to Z3 autoconf address $%.2X", address & 0xFF);
+ //stop_cpu_emulation();
+ break;
+ }
+
+ if (done) {
+ printf("[AUTOCONF] Address of Z3 autoconf RAM assigned to $%.8x [W]\n", ac_base[ac_z3_current_pic]);
+ cfg->map_offset[index] = ac_base[ac_z3_current_pic];
+ cfg->map_high[index] = cfg->map_offset[index] + cfg->map_size[index];
+ m68k_add_ram_range(cfg->map_offset[index], cfg->map_high[index], cfg->map_data[index]);
+ ac_z3_current_pic++;
+ if (ac_z3_current_pic == ac_z3_pic_count) {
+ ac_z3_done = 1;
+ adjust_ranges_amiga(cfg);
+ }
+ }
+
+ return;
+}
+
+void add_z2_pic(uint8_t type, uint8_t index) {
+ if (ac_z2_pic_count < AC_PIC_LIMIT) {
+ ac_z2_type[ac_z2_pic_count] = type;
+ ac_z2_index[ac_z2_pic_count] = index;
+ ac_z2_pic_count++;
+ return;
+ }
+ printf("[AUTOCONF] Failed to add Z2 PIC of type %d, limit exceeded.\n", type);
+}
+
+void remove_z2_pic(uint8_t type, uint8_t index) {
+ uint8_t pic_found = 0;
+ if (index) {}
+
+ for (uint32_t i = 0; i < ac_z2_pic_count; i++) {
+ if (ac_z2_type[i] == type && !pic_found) {
+ pic_found = 1;
+ }
+ if (pic_found && i < AC_PIC_LIMIT - 1) {
+ ac_z2_type[i] = ac_z2_type[i + 1];
+ ac_z2_index[i] = ac_z2_index[ i + 1];
+ }
+ }
+
+ if (pic_found) {
+ ac_z2_type[AC_PIC_LIMIT - 1] = ACTYPE_NONE;
+ ac_z2_index[AC_PIC_LIMIT - 1] = 0;
+ ac_z2_pic_count--;
+ }
+ else {
+ printf("[AUTOCONF] Tried to remove Z2 PIC of type %d, but it wasn't found.\n", type);
+ }
+}
+
+unsigned int autoconfig_read_memory_8(struct emulator_config *cfg, unsigned int address) {
unsigned char *rom = NULL;
- int address = address_ - AC_BASE;
unsigned char val = 0;
- switch(ac_type[ac_current_pic]) {
+ switch(ac_z2_type[ac_z2_current_pic]) {
case ACTYPE_MAPFAST_Z2:
rom = ac_fast_ram_rom;
break;
case ACTYPE_A314:
rom = ac_a314_rom;
break;
+ case ACTYPE_PISCSI:
+ rom = ac_piscsi_rom;
+ break;
+ case ACTYPE_PISTORM_DEV:
+ rom = ac_pistorm_rom;
+ break;
default:
return 0;
break;
}
-
+
if ((address & 1) == 0 && (address / 2) < (int)sizeof(ac_fast_ram_rom)) {
- if (ac_type[ac_current_pic] == ACTYPE_MAPFAST_Z2 && address / 2 == 1)
- val = get_autoconf_size(cfg->map_size[ac_index[ac_current_pic]]);
+ if (ac_z2_type[ac_z2_current_pic] == ACTYPE_MAPFAST_Z2 && address / 2 == 1) {
+ val = get_autoconf_size(cfg->map_size[ac_z2_index[ac_z2_current_pic]]);
+ if (ac_z2_current_pic + 1 < ac_z2_pic_count)
+ val |= BOARDTYPE_LINKED;
+ }
else
val = rom[address / 2];
- //printf("Read byte %d from autoconf for PIC %d (%.2X).\n", address/2, ac_current_pic, val);
+ //printf("Read byte %d from Z2 autoconf for PIC %d (%.2X).\n", address/2, ac_z2_current_pic, val);
}
val <<= 4;
- if (address != 0 && address != 2 && address != 40 && address != 42)
- val ^= 0xf0;
-
+ if (address != 0 && address != 2 && address != 0x40 && address != 0x42)
+ val ^= 0xff;
+
return (unsigned int)val;
}
-void autoconfig_write_memory_8(struct emulator_config *cfg, unsigned int address_, unsigned int value) {
- int address = address_ - AC_BASE;
+void autoconfig_write_memory_8(struct emulator_config *cfg, unsigned int address, unsigned int value) {
int done = 0;
+ int index = ac_z2_index[ac_z2_current_pic];
unsigned int *base = NULL;
- switch(ac_type[ac_current_pic]) {
+ switch(ac_z2_type[ac_z2_current_pic]) {
case ACTYPE_MAPFAST_Z2:
- base = &ac_base[ac_current_pic];
+ base = &ac_base[ac_z2_current_pic];
break;
case ACTYPE_A314:
- //base = &a314_base;
+ base = &a314_base;
+ break;
+ case ACTYPE_PISCSI:
+ base = &piscsi_base;
+ break;
+ case ACTYPE_PISTORM_DEV:
+ base = &pistorm_dev_base;
break;
default:
break;
}
if (!base) {
- printf("Failed to set up the base for autoconfig PIC %d.\n", ac_current_pic);
+ //printf("Failed to set up the base for autoconfig PIC %d.\n", ac_z2_current_pic);
done = 1;
}
else {
*base &= 0xff0fffff;
*base |= (value & 0xf0) << (20 - 4);
- if (ac_type[ac_current_pic] == ACTYPE_MAPFAST_Z2) { // fast ram
- //a314_set_mem_base_size(*base, cfg->map_size[ac_index[ac_current_pic]]);
+ if (ac_z2_type[ac_z2_current_pic] == ACTYPE_A314) {
+ //a314_set_mem_base_size(*base, cfg->map_size[ac_index[ac_z2_current_pic]]);
}
done = 1;
} else if (address == 0x4c) { // shut up
+ //printf("Write to Z2 shutup register for PIC %d.\n", ac_z2_current_pic);
done = 1;
}
}
if (done) {
- //printf("Address of Z2 autoconf RAM changed to %.8x\n", ac_base[ac_current_pic]);
- cfg->map_offset[ac_index[ac_current_pic]] = ac_base[ac_current_pic];
- ac_current_pic++;
- if (ac_current_pic == ac_pic_count)
- ac_done = 1;
+ switch (ac_z2_type[ac_z2_current_pic]) {
+ case ACTYPE_MAPFAST_Z2:
+ cfg->map_offset[index] = ac_base[ac_z2_current_pic];
+ cfg->map_high[index] = cfg->map_offset[index] + cfg->map_size[index];
+ printf("[AUTOCONF] Address of Z2 autoconf RAM assigned to $%.8X\n", ac_base[ac_z2_current_pic]);
+ m68k_add_ram_range(cfg->map_offset[index], cfg->map_high[index], cfg->map_data[index]);
+ printf("[AUTOCONF] Z2 PIC %d at $%.8lX-%.8lX, Size: %d MB\n", ac_z2_current_pic, cfg->map_offset[index], cfg->map_high[index], cfg->map_size[index] / SIZE_MEGA);
+ break;
+ case ACTYPE_PISCSI:
+ printf("[AUTOCONF] PiSCSI Z2 device assigned to $%.8X\n", piscsi_base);
+ //m68k_add_rom_range(piscsi_base + (16 * SIZE_KILO), piscsi_base + (32 * SIZE_KILO), piscsi_rom_ptr);
+ break;
+ case ACTYPE_A314:
+ printf("[AUTOCONF] A314 emulation device assigned to $%.8X\n", a314_base);
+ break;
+ case ACTYPE_PISTORM_DEV:
+ printf("[AUTOCONF] PiStorm Interaction Z2 device assigned to $%.8X\n", pistorm_dev_base);
+ break;
+ default:
+ printf("[!!!AUTOCONF] Some strange unknown Z2 device has been assigned to $%.8X?", *base);
+ break;
+ }
+ ac_z2_current_pic++;
+ if (ac_z2_current_pic == ac_z2_pic_count) {
+ ac_z2_done = 1;
+ adjust_ranges_amiga(cfg);
+ }
}
}
projects / pistorm / blobdiff