0xa, 0x3, 0x1, 0x4, 0x0, 0x0, 0x0, 0x0 // 18/.../26, serial
};
-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];
+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];
+
+
unsigned char get_autoconf_size(int size) {
if (size == 8 * SIZE_MEGA)
return AC_MEM_SIZE_8MB;
return AC_MEM_SIZE_64KB;
}
+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;
+}
+
+unsigned int autoconfig_read_memory_z3_8(struct emulator_config *cfg, unsigned int address_) {
+ int address = address_ - AC_Z3_BASE;
+ 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]);
+ // 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:
+ 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) ^ 0xF0 : (val & 0xF0) ^ 0xF0;
+}
+
+int nib_latch = 0;
+
+void autoconfig_write_memory_z3_8(struct emulator_config *cfg, unsigned int address_, unsigned int value) {
+ int address = address_ - AC_Z3_BASE;
+ 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:
+ done = 1;
+ break;
+ default:
+ break;
+ }
+
+ if (done) {
+ nib_latch = 0;
+ printf("Address of Z3 autoconf RAM assigned to $%.8x\n", ac_base[ac_z3_current_pic]);
+ cfg->map_offset[index] = ac_base[ac_z3_current_pic];
+ ac_z3_current_pic++;
+ if (ac_z3_current_pic == ac_z3_pic_count)
+ ac_z3_done = 1;
+ }
+
+ return;
+}
+
+void autoconfig_write_memory_z3_16(struct emulator_config *cfg, unsigned int address_, unsigned int value) {
+ int address = address_ - AC_Z3_BASE;
+ int index = ac_z3_index[ac_z3_current_pic];
+ unsigned short val = (unsigned short)value;
+ int done = 0;
+ //if (index || done || address || cfg || val || value) {}
+
+ switch(address & 0xFF) {
+ case AC_Z3_REG_WR_ADDR_HI:
+ // This is, as far as I know, the only regiter 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("Address of Z3 autoconf RAM assigned to $%.8x\n", ac_base[ac_z3_current_pic]);
+ cfg->map_offset[index] = ac_base[ac_z3_current_pic];
+ ac_z3_current_pic++;
+ if (ac_z3_current_pic == ac_z3_pic_count)
+ ac_z3_done = 1;
+ }
+
+ return;
+}
+
unsigned int autoconfig_read_memory_8(struct emulator_config *cfg, unsigned int address_) {
unsigned char *rom = NULL;
- int address = address_ - AC_BASE;
+ int address = address_ - AC_Z2_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;
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]]);
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)
}
void autoconfig_write_memory_8(struct emulator_config *cfg, unsigned int address_, unsigned int value) {
- int address = address_ - AC_BASE;
+ int address = address_ - AC_Z2_BASE;
int done = 0;
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;
}
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_MAPFAST_Z2) { // fast ram
+ //a314_set_mem_base_size(*base, cfg->map_size[ac_index[ac_z2_current_pic]]);
}
done = 1;
} else if (address == 0x4c) { // shut up
}
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;
+ printf("Address of Z2 autoconf RAM assigned to $%.8x\n", ac_base[ac_z2_current_pic]);
+ cfg->map_offset[ac_z2_index[ac_z2_current_pic]] = ac_base[ac_z2_current_pic];
+ ac_z2_current_pic++;
+ if (ac_z2_current_pic == ac_z2_pic_count)
+ ac_z2_done = 1;
}
}
projects / pistorm / blobdiff