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dingusppc
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Worked more on Grackle, ESCC, and OpenPIC

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dingusdev 2019-07-14 17:05:10 -07:00 committed by GitHub
parent 87acd53c86
commit ac5b70ad26
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6 changed files with 325 additions and 89 deletions
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3
README.md
View File

@ -52,8 +52,9 @@ Future versions will include SDL 2 as a requirement.
## Intended Minimum Requirements
- Windows 7 or newer (64-bit), Linux 4.4 or newer, Mac OS X 10.9 or newer (64-bit)
- 2 GB of RAM
- Intel Core 2 Duo or better
- 2 GB of RAM
- 2 GB of Hard Disk Space
- Graphics Card with a minimum resolution of 800*600
## Compiler Requirements

65
macioserial.cpp
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@ -17,6 +17,8 @@ uint32_t mac_serial_address;
uint8_t serial_write_byte;
uint8_t serial_read_byte;
bool w7_prime;
void mac_serial_init(){
machine_iocontrolmem_mem[0x3013004] = 0x04;
machine_iocontrolmem_mem[0x3013009] = 0xC0;
@ -31,11 +33,70 @@ void mac_serial_read(){
if (mac_serial_address >=0x3013020){
mac_serial_address -= 0x20;
}
machine_iocontrolmem_mem[mac_serial_address] = serial_read_byte;
if (w7_prime){
if (((machine_iocontrolmem_mem[0x301301F] >> 2) & 0x1) & ((machine_iocontrolmem_mem[0x3013007] >> 6) & 0x1)){
switch(mac_serial_address){
case 0x14: case 0x15:
serial_read_byte = machine_iocontrolmem_mem[(mac_serial_address - 0x10)];
break;
case 0x19:
serial_read_byte = machine_iocontrolmem_mem[0x3];
break;
case 0x1B:
serial_read_byte = machine_iocontrolmem_mem[0x10];
break;
case 0x1E:
serial_read_byte = machine_iocontrolmem_mem[0x07];
break;
default:
serial_read_byte = machine_iocontrolmem_mem[mac_serial_address];
break;
}
}
}
else{
if ((machine_iocontrolmem_mem[0x301300F] >> 2) & 0x1){
switch(mac_serial_address){
case 0x14: case 0x15:
serial_read_byte = machine_iocontrolmem_mem[(mac_serial_address - 4)];
break;
case 0x19: case 0x1B:
serial_read_byte = machine_iocontrolmem_mem[(mac_serial_address + 4)];
break;
default:
serial_read_byte = machine_iocontrolmem_mem[mac_serial_address];
break;
}
}
else {
switch(mac_serial_address){
case 0x14: case 0x15: case 0x16: case 0x17:
serial_read_byte = machine_iocontrolmem_mem[(mac_serial_address - 4)];
case 0x19: case 0x1B:
serial_read_byte = machine_iocontrolmem_mem[(mac_serial_address + 4)];
break;
default:
serial_read_byte = machine_iocontrolmem_mem[mac_serial_address];
break;
}
}
}
}
void mac_serial_write(){
if (mac_serial_address >=0x3013020){
mac_serial_address -= 0x20;
}
serial_write_byte = machine_iocontrolmem_mem[mac_serial_address];
machine_iocontrolmem_mem[mac_serial_address] = serial_write_byte;
if ((machine_iocontrolmem_mem[0x0F]) & 0x1){
w7_prime = true;
}
else{
w7_prime = false;
}
machine_iocontrolmem_mem[(mac_serial_address + 0x10)] = machine_iocontrolmem_mem[mac_serial_address];
}

238
mpc106.cpp
View File

@ -15,11 +15,13 @@
#include "ppcemumain.h"
#include "ppcmemory.h"
bool mpc106_address_map;
bool mpc106_membound_change;
bool mpc106_mem_approve; //Confirm memory transaction
uint32_t mpc106_address; // For fe000000 - fe00ffff
uint32_t mpc_config_addr; // Device No. and Reg No. included
uint32_t mpc_config_dat; // Value to write to the device
uint32_t cust_grab_size; // Custom bit size
uint32_t mpc106_write_word;
uint32_t mpc106_read_word;
@ -28,6 +30,26 @@ uint16_t mpc106_read_half;
uint8_t mpc106_write_byte;
uint8_t mpc106_read_byte;
uint8_t mpc106_word_custom_size;
//The below array is used for ROM banks
//Top eight entries are for the starting addresses
//Bottom eight entries are for the ending addresses
uint32_t mpc106_memory_bounds[16] =
{
0x00000, 0x00000, 0x00000, 0x00000,
0x00000, 0x00000, 0x00000, 0x00000,
0xFFFFF, 0xFFFFF, 0xFFFFF, 0xFFFFF,
0xFFFFF, 0xFFFFF, 0xFFFFF, 0xFFFFF,
};
//Entries are organized like so...
//ROM Banks 0-3 (ext. starting address) (starting address) (0x00000)
//ROM Banks 4-7 (ext. starting address) (starting address) (0x00000)
//ROM Banks 0-3 (ext. ending address) ( ending address) (0x00000)
//ROM Banks 4-7 (ext. ending address) ( ending address) (0x00000)
void mpc106_init(){
mpc_config_addr = 0;
mpc_config_dat = 0;
@ -58,21 +80,12 @@ void mpc106_init(){
machine_fexxxx_mem[0xAF] = 0x00;
machine_fexxxx_mem[0xBA] = 0x04;
machine_fexxxx_mem[0xC0] = 0x01;
machine_fexxxx_mem[0xAC] = 0x0C;
machine_fexxxx_mem[0xAD] = 0x06;
machine_fexxxx_mem[0xAE] = 0x0C;
machine_fexxxx_mem[0xAF] = 0x00;
machine_fexxxx_mem[0xAC] = 0x0C;
machine_fexxxx_mem[0xAD] = 0x06;
machine_fexxxx_mem[0xAE] = 0x0C;
machine_fexxxx_mem[0xAF] = 0x00;
machine_fexxxx_mem[0xAC] = 0x0C;
machine_fexxxx_mem[0xAD] = 0x06;
machine_fexxxx_mem[0xAE] = 0x0C;
machine_fexxxx_mem[0xAF] = 0x00;
machine_fexxxx_mem[0xE0] = 0x42;
machine_fexxxx_mem[0xE1] = 0x00;
machine_fexxxx_mem[0xE2] = 0xFF;
machine_fexxxx_mem[0xE3] = 0x0F;
machine_fexxxx_mem[0xF0] = 0x00;
machine_fexxxx_mem[0xF1] = 0x00;
@ -88,6 +101,9 @@ void mpc106_init(){
machine_fexxxx_mem[0xFD] = 0x00;
machine_fexxxx_mem[0xFE] = 0x10;
machine_fexxxx_mem[0xFF] = 0x00;
mpc106_mem_approve = false;
mpc106_word_custom_size = 0;
}
uint32_t mpc106_write_device(uint32_t device_addr, uint32_t insert_to_device, uint8_t bit_length){
@ -141,10 +157,73 @@ uint32_t mpc106_read_device(uint32_t device_addr, uint8_t bit_length){
return grab_value;
}
bool mpc106_check_membound(uint32_t attempted_address){
uint32_t mem_address_begin;
uint32_t mem_address_end;
for (int get_rom_bank = 0; get_rom_bank < 8; get_rom_bank++){
mem_address_begin = mpc106_memory_bounds[get_rom_bank];
mem_address_end = mpc106_memory_bounds[get_rom_bank + 8];
if ((attempted_address >= mem_address_begin) & (attempted_address <= mem_address_end)){
uint8_t is_valid = (machine_fexxxx_mem[0xA0] >> get_rom_bank) & 0x01;
if (is_valid == 0){
return true;
}
}
}
return false;
}
void mpc106_set_membound_begin(uint8_t bound_area){
uint32_t bcheck_area = 0x80 + bound_area;
uint32_t newbound = machine_fexxxx_mem[bcheck_area];
uint32_t bound_entry = bound_area % 8;
uint32_t change_entry = mpc106_memory_bounds[bound_entry];
change_entry &= 0xfffff;
change_entry = newbound << 20;
mpc106_memory_bounds[bound_entry] = change_entry;
}
void mpc106_set_membound_extbegin(uint8_t bound_area){
uint32_t bcheck_area = 0x88 + bound_area;
uint32_t newbound = machine_fexxxx_mem[bcheck_area];
uint32_t bound_entry = bound_area % 8;
uint32_t change_entry = mpc106_memory_bounds[bound_entry];
change_entry &= 0x0fffffff;
change_entry = (newbound & 0x3) << 28;
mpc106_memory_bounds[bound_entry] = change_entry;
}
void mpc106_set_membound_end(uint8_t bound_area){
uint32_t bcheck_area = 0x90 + bound_area;
uint32_t newbound = machine_fexxxx_mem[bcheck_area];
uint32_t bound_entry = (bound_area % 8) + 8;
uint32_t change_entry = mpc106_memory_bounds[bound_entry];
change_entry &= 0xfffff;
change_entry = newbound << 20;
mpc106_memory_bounds[bound_entry] = change_entry;
}
void mpc106_set_membound_extend(uint8_t bound_area){
uint32_t bcheck_area = 0x98 + bound_area;
uint32_t newbound = machine_fexxxx_mem[bcheck_area];
uint32_t bound_entry = (bound_area % 8) + 8;
uint32_t change_entry = mpc106_memory_bounds[bound_entry];
change_entry &= 0x0fffffff;
change_entry = (newbound & 0x3) << 28;
mpc106_memory_bounds[bound_entry] = change_entry;
}
void mpc106_read(){
uint8_t read_length = 4;
if ((mpc106_address >= 0x80) | (mpc106_address < 0xA0)){
mpc106_membound_change = true;
read_length = mpc106_word_custom_size;
}
else{
switch (mpc106_address){
case 0x8:
case 0x9:
@ -171,14 +250,6 @@ void mpc106_read(){
case 0x70:
read_length = 2;
break;
case 0x80:
case 0x84:
case 0x88:
case 0x8C:
case 0x90:
case 0x94:
case 0x98:
case 0x9C:
case 0xF0:
case 0xF4:
case 0xF8:
@ -187,6 +258,7 @@ void mpc106_read(){
default: //Avoid writing into reserved areas
read_length = 0;
}
}
switch(read_length){
case 1:
@ -210,57 +282,91 @@ void mpc106_write(uint32_t write_word){
uint8_t write_length = 4;
switch (mpc106_address){
case 0x70:
case 0x72:
case 0x73:
case 0xA0:
case 0xA3:
write_length = 1;
break;
case 0x4:
case 0x6:
write_length = 2;
break;
case 0x80:
case 0x84:
case 0x88:
case 0x8C:
case 0x90:
case 0x94:
case 0x98:
case 0x9C:
case 0xF0:
case 0xF4:
case 0xF8:
case 0xFC:
write_length = 4;
default: //Avoid writing into reserved areas
write_length = 0;
if ((mpc106_address >= 0x80) | (mpc106_address < 0xA0)){
mpc106_membound_change = true;
write_length = mpc106_word_custom_size;
}
else{
switch (mpc106_address){
case 0x70:
case 0x72:
case 0x73:
case 0xA0:
case 0xA3:
write_length = 1;
break;
case 0x4:
case 0x6:
write_length = 2;
break;
case 0xF0:
case 0xF4:
case 0xF8:
case 0xFC:
write_length = 4;
default: //Avoid writing into reserved areas
write_length = 0;
}
}
switch(write_length){
case 1:
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word) & 0xFF);
break;
case 2:
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word) & 0xFF);
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word >> 8) & 0xFF);
break;
case 4:
if ((mpc106_address == 0x88) | (mpc106_address == 0x8C) | (mpc106_address == 0x98) | (mpc106_address == 0x9C)){
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word) & 0x03);
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word >> 8) & 0x03);
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word >> 16) & 0x03);
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word >> 24) & 0x03);
if (mpc106_membound_change){
switch(write_length){
case 1:
change_membound_time();
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word) & 0xFF);
break;
}
else{
case 2:
change_membound_time();
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word) & 0xFF);
change_membound_time();
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word >> 8) & 0xFF);
break;
case 4:
change_membound_time();
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word) & 0xFF);
change_membound_time();
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word >> 8) & 0xFF);
change_membound_time();
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word >> 16) & 0xFF);
change_membound_time();
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word >> 24) & 0xFF);
break;
}
}
else{
switch(write_length){
case 1:
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word) & 0xFF);
break;
case 2:
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word) & 0xFF);
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word >> 8) & 0xFF);
break;
case 4:
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word) & 0xFF);
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word >> 8) & 0xFF);
grab_macmem_ptr[mpc106_address++] |= (uint8_t)((mpc106_read_word >> 16) & 0xFF);
grab_macmem_ptr[mpc106_address] |= (uint8_t)((mpc106_read_word >> 24) & 0xFF);
break;
}
}
}
void change_membound_time(){
if (mpc106_address < 0x88){
mpc106_set_membound_begin(mpc106_address);
mpc106_membound_change = false;
}
else if (mpc106_address < 0x90){
mpc106_set_membound_extbegin(mpc106_address);
mpc106_membound_change = false;
}
else if (mpc106_address < 0x98){
mpc106_set_membound_end(mpc106_address);
mpc106_membound_change = false;
}
else if (mpc106_address < 0xA0){
mpc106_set_membound_extend(mpc106_address);
mpc106_membound_change = false;
}
}

4
mpc106.h
View File

@ -23,12 +23,16 @@ extern uint16_t mpc106_write_half;
extern uint16_t mpc106_read_half;
extern uint8_t mpc106_write_byte;
extern uint8_t mpc106_read_byte;
extern uint8_t mpc106_word_custom_size;
extern unsigned char* mpc106_regs;
extern void change_membound_time();
extern void mpc106_init();
extern void mpc106_read();
extern void mpc106_write(uint32_t write_word);
extern uint32_t mpc106_write_device(uint32_t device_addr, uint32_t insert_to_device, uint8_t bit_length);
extern uint32_t mpc106_read_device(uint32_t device_addr, uint8_t bit_length);
extern bool mpc106_check_membound(uint32_t attempted_address);
#endif

47
openpic.cpp
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@ -16,6 +16,18 @@ uint32_t openpic_address;
uint32_t openpic_write_word;
uint32_t openpic_read_word;
bool openpic_int_go;
//OPENPIC ADDRESS MAP goes like this...
//(Assuming that it's placed at 0x80040000
//Per Processor Registers [private access] 0x40000 - 0x40fff
//Global registers 0x41000 - 0x4ffff
//Interrupt Source Configuration Registers 0x50000 - 0x5ffff
//Per Processor Registers [global access] 0x60000 - 0x7ffff
//Taken from FreeBSD source code
void openpic_init(){
for (int i = 0x40004; i < 0x7FFFF; i++){
if (i % 16 == 0){
@ -23,18 +35,53 @@ void openpic_init(){
}
machine_upperiocontrol_mem[i] = 0xFF;
}
machine_upperiocontrol_mem[0x40080] = 0x6B;
machine_upperiocontrol_mem[0x40081] = 0x10;
machine_upperiocontrol_mem[0x40082] = 0x10;
machine_upperiocontrol_mem[0x40083] = 0x00;
}
void openpic_read(){
if (openpic_address > 0x60000){
openpic_address = (openpic_address % 0x8000) + 0x60000;
}
openpic_read_word = (uint32_t)(machine_upperiocontrol_mem[openpic_address++]);
openpic_read_word = (uint32_t)((machine_upperiocontrol_mem[openpic_address++]) << 8);
openpic_read_word = (uint32_t)((machine_upperiocontrol_mem[openpic_address++]) << 16);
openpic_read_word = (uint32_t)((machine_upperiocontrol_mem[openpic_address]) << 24);
}
void openpic_write(){
//Max of 128 interrupts per processor
//Each interrupt line takes up 0x8000 bytes
uint32_t op_interrupt_check = (openpic_address & 0xFF);
//We have only one processor
if (openpic_address > 0x60000){
openpic_address = (openpic_address % 0x8000) + 0x60000;
}
machine_upperiocontrol_mem[openpic_address++] = (uint8_t)(openpic_write_word);
machine_upperiocontrol_mem[openpic_address++] = (uint8_t)((openpic_write_word) >> 8);
machine_upperiocontrol_mem[openpic_address++] = (uint8_t)((openpic_write_word) >> 16);
machine_upperiocontrol_mem[openpic_address] = (uint8_t)((openpic_write_word) >> 24);
switch (op_interrupt_check){
case 0x80:
printf("Task Priority Reg stuff goes here! \n");
break;
case 0x90:
printf("WHOAMI stuff goes here! \n");
break;
case 0xA0:
openpic_int_go = true;
break;
case 0xB0:
openpic_int_go = false;
break;
}
}

57
ppcmemory.cpp
View File

@ -479,18 +479,23 @@ void address_quickinsert_translate(uint32_t address_grab, uint32_t value_insert,
//regular grabbing
if (address_grab < 0x80000000){
if (address_grab > 0x03ffffff){ //for debug purposes
storage_area = address_grab;
grab_macmem_ptr = machine_sysram_mem;
}
else if ((address_grab >= 0x5fffe000) && (address_grab <= 0x5fffffff)){
storage_area = address_grab % 0x2000;
grab_macmem_ptr = machine_sysconfig_mem;
if (mpc106_check_membound(address_grab)){
if (address_grab > 0x03ffffff){ //for debug purposes
storage_area = address_grab;
grab_macmem_ptr = machine_sysram_mem;
}
else if ((address_grab >= 0x5fffe000) && (address_grab <= 0x5fffffff)){
storage_area = address_grab % 0x2000;
grab_macmem_ptr = machine_sysconfig_mem;
}
else{
storage_area = address_grab % 0x04000000;
grab_macmem_ptr = machine_sysram_mem;
printf("Uncharted territory: %x \n", address_grab);
}
}
else{
storage_area = address_grab % 0x04000000;
grab_macmem_ptr = machine_sysram_mem;
printf("Uncharted territory: %x \n", address_grab);
return;
}
}
else if (address_grab < 0x80800000){
@ -610,6 +615,7 @@ void address_quickinsert_translate(uint32_t address_grab, uint32_t value_insert,
}
else if (address_grab < 0xFF000000){
storage_area = 0x0CFC; //CONFIG_DATA
mpc106_word_custom_size = bit_num;
mpc106_write_device(mpc_config_addr, value_insert, bit_num);
grab_macmem_ptr = machine_feexxx_mem;
}
@ -717,15 +723,22 @@ void address_quickgrab_translate(uint32_t address_grab, uint32_t value_extract,
//regular grabbing
if (address_grab < 0x80000000){
if (address_grab > 0x03ffffff){ //for debug purposes
storage_area = address_grab;
grab_macmem_ptr = machine_sysram_mem;
}
else if ((address_grab >= 0x5fffe000) && (address_grab <= 0x5fffffff)){
storage_area = address_grab % 0x2000;
grab_macmem_ptr = machine_sysconfig_mem;
if (mpc106_check_membound(address_grab)){
if (address_grab > 0x03ffffff){ //for debug purposes
storage_area = address_grab;
grab_macmem_ptr = machine_sysram_mem;
}
else if ((address_grab >= 0x5fffe000) && (address_grab <= 0x5fffffff)){
storage_area = address_grab % 0x2000;
grab_macmem_ptr = machine_sysconfig_mem;
}
else{
return_value = (bit_num == 1)?0xFF:(bit_num == 2)?0xFFFF:0xFFFFFFFF;
return;
}
}
else{
//The address is not within the ROM banks
return_value = (bit_num == 1)?0xFF:(bit_num == 2)?0xFFFF:0xFFFFFFFF;
return;
}
@ -824,6 +837,7 @@ void address_quickgrab_translate(uint32_t address_grab, uint32_t value_extract,
return;
}
else if (address_grab < 0xFF000000){
mpc106_word_custom_size = bit_num;
return_value = mpc106_read_device(mpc_config_addr, bit_num);
return_value = rev_endian32(return_value);
return;
@ -1011,8 +1025,11 @@ void quickinstruction_translate(uint32_t address_grab){
grab_macmem_ptr = machine_sysrom_mem;
}
ppc_cur_instruction += (grab_macmem_ptr[(storage_area++)]) << 24;
ppc_cur_instruction += (grab_macmem_ptr[(storage_area++)]) << 16;
ppc_cur_instruction += (grab_macmem_ptr[(storage_area++)]) << 8;
ppc_cur_instruction += (grab_macmem_ptr[storage_area]) << 24;
++storage_area;
ppc_cur_instruction += (grab_macmem_ptr[storage_area]) << 16;
++storage_area;
ppc_cur_instruction += (grab_macmem_ptr[storage_area]) << 8;
++storage_area;
ppc_cur_instruction += (grab_macmem_ptr[(storage_area)]);
}