mirror of
https://github.com/captain-amygdala/pistorm.git
synced 2026-01-11 23:43:13 +00:00
Initial config file+memory map implementation
This commit is contained in:
beeanyew
parent
d9d152d319
commit
37bb73e0c6
2
Makefile
2
Makefile
@ -1,6 +1,6 @@
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EXENAME = emulator
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MAINFILES = emulator.c Gayle.c ide.c
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MAINFILES = emulator.c Gayle.c ide.c memory_mapped.c config_file/config_file.c registers/registers_amiga.c
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MUSASHIFILES = m68kcpu.c softfloat/softfloat.c
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MUSASHIGENCFILES = m68kops.c
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MUSASHIGENHFILES = m68kops.h
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380
config_file/config_file.c
Normal file
380
config_file/config_file.c
Normal file
@ -0,0 +1,380 @@
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#include "config_file.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define M68K_CPU_TYPES M68K_CPU_TYPE_SCC68070
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const char *cpu_types[M68K_CPU_TYPES] = {
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"68000",
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"68010",
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"68EC020",
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"68020",
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"68EC030",
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"68030",
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"68EC040",
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"68LC040",
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"68040",
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"SCC68070",
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};
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const char *map_type_names[MAPTYPE_NUM] = {
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"NONE",
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"rom",
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"ram",
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"register",
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};
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const char *config_item_names[CONFITEM_NUM] = {
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"NONE",
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"cpu",
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"map",
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"loopcycles",
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"mouse",
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"keyboard",
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};
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const char *mapcmd_names[MAPCMD_NUM] = {
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"NONE",
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"type",
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"address",
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"size",
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"range",
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"file",
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"ovl",
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"id",
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};
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int get_config_item_type(char *cmd) {
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for (int i = 0; i < CONFITEM_NUM; i++) {
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if (strcmp(cmd, config_item_names[i]) == 0) {
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return i;
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}
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}
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return CONFITEM_NONE;
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}
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unsigned int get_m68k_cpu_type(char *name) {
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for (int i = 0; i < M68K_CPU_TYPES; i++) {
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if (strcmp(name, cpu_types[i]) == 0) {
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printf("Set CPU type to %s.\n", cpu_types[i]);
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return i + 1;
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}
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}
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printf ("Invalid CPU type %s specified, defaulting to 68000.\n", name);
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return M68K_CPU_TYPE_68000;
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}
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unsigned int get_map_cmd(char *name) {
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for (int i = 1; i < MAPCMD_NUM; i++) {
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if (strcmp(name, mapcmd_names[i]) == 0) {
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return i;
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}
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}
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return MAPCMD_UNKNOWN;
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}
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unsigned int get_map_type(char *name) {
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for (int i = 1; i < MAPTYPE_NUM; i++) {
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if (strcmp(name, map_type_names[i]) == 0) {
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return i;
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}
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}
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return MAPTYPE_NONE;
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}
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void trim_whitespace(char *str) {
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while (strlen(str) != 0 && (str[strlen(str) - 1] == ' ' || str[strlen(str) - 1] == '\t' || str[strlen(str) - 1] == 0x0A || str[strlen(str) - 1] == 0x0D)) {
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str[strlen(str) - 1] = '\0';
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}
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}
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unsigned int get_int(char *str) {
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if (strlen(str) == 0)
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return -1;
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int ret_int = 0;
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if (strlen(str) > 2 && str[0] == '0' && str[1] == 'x') {
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for (int i = 2; i < (int)strlen(str); i++) {
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if (str[i] >= '0' && str[i] <= '9') {
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ret_int = (str[i] - '0') | (ret_int << 4);
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}
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else {
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switch(str[i]) {
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case 'A': ret_int = 0xA | (ret_int << 4); break;
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case 'B': ret_int = 0xB | (ret_int << 4); break;
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case 'C': ret_int = 0xC | (ret_int << 4); break;
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case 'D': ret_int = 0xD | (ret_int << 4); break;
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case 'E': ret_int = 0xE | (ret_int << 4); break;
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case 'F': ret_int = 0xF | (ret_int << 4); break;
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case 'K': ret_int = ret_int * SIZE_KILO; break;
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case 'M': ret_int = ret_int * SIZE_MEGA; break;
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case 'G': ret_int = ret_int * SIZE_GIGA; break;
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default:
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printf("Unknown character %c in hex value.\n", str[i]);
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break;
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}
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}
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}
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return ret_int;
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}
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else {
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ret_int = atoi(str);
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if (str[strlen(str) - 1] == 'K')
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ret_int = ret_int * SIZE_KILO;
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else if (str[strlen(str) - 1] == 'M')
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ret_int = ret_int * SIZE_MEGA;
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else if (str[strlen(str) - 1] == 'G')
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ret_int = ret_int * SIZE_GIGA;
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return ret_int;
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}
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}
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void get_next_string(char *str, char *str_out, int *strpos, char separator) {
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int str_pos = 0, out_pos = 0;
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if (!str_out)
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return;
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if (strpos)
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str_pos = *strpos;
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while (str[str_pos] == ' ' && str[str_pos] == '\t' && str_pos < (int)strlen(str)) {
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str_pos++;
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}
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for (int i = str_pos; i < (int)strlen(str); i++) {
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str_out[out_pos] = str[i];
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if ((separator == ' ' && (str[i] == ' ' || str[i] == '\t')) || str[i] == separator) {
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str_out[out_pos] = '\0';
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if (strpos) {
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*strpos = i + 1;
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}
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break;
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}
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out_pos++;
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if (i + 1 == (int)strlen(str) && strpos) {
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*strpos = i + 1;
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str_out[out_pos] = '\0';
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}
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}
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}
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void add_mapping(struct emulator_config *cfg, unsigned int type, unsigned int addr, unsigned int size, int mirr_addr, char *filename, char *map_id) {
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unsigned int index = 0, file_size = 0;
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FILE *in = NULL;
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while (index < MAX_NUM_MAPPED_ITEMS) {
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if (cfg->map_type[index] == MAPTYPE_NONE)
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break;
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index++;
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}
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if (index == MAX_NUM_MAPPED_ITEMS) {
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printf("Unable to map item, only %d items can be mapped with current binary.\n", MAX_NUM_MAPPED_ITEMS);
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return;
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}
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cfg->map_type[index] = type;
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cfg->map_offset[index] = addr;
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cfg->map_size[index] = size;
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cfg->map_mirror[index] = mirr_addr;
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if (strlen(map_id)) {
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cfg->map_id[index] = (char *)malloc(strlen(map_id) + 1);
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strcpy(cfg->map_id[index], map_id);
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}
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switch(type) {
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case MAPTYPE_RAM:
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printf("Allocating %d bytes for RAM mapping (%d MB)...\n", size, size / 1024 / 1024);
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cfg->map_data[index] = (unsigned char *)malloc(size);
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if (!cfg->map_data[index]) {
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printf("ERROR: Unable to allocate memory for mapped RAM!\n");
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goto mapping_failed;
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}
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memset(cfg->map_data[index], 0x00, size);
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break;
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case MAPTYPE_ROM:
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in = fopen(filename, "rb");
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if (!in) {
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printf("Failed to open file %s for ROM mapping.\n", filename);
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goto mapping_failed;
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}
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fseek(in, 0, SEEK_END);
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file_size = (int)ftell(in);
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if (size == 0) {
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cfg->map_size[index] = file_size;
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}
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fseek(in, 0, SEEK_SET);
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cfg->map_data[index] = (unsigned char *)calloc(1, cfg->map_size[index]);
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if (!cfg->map_data[index]) {
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printf("ERROR: Unable to allocate memory for mapped ROM!\n");
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goto mapping_failed;
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}
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memset(cfg->map_data[index], 0x00, cfg->map_size[index]);
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fread(cfg->map_data[index], (cfg->map_size[index] <= file_size) ? cfg->map_size[index] : file_size, 1, in);
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fclose(in);
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break;
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case MAPTYPE_REGISTER:
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default:
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break;
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break;
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}
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printf("[MAP %d] Added %s mapping for range %.8lX-%.8lX (%.8lX)\n", index, map_type_names[type], cfg->map_offset[index], cfg->map_offset[index] + cfg->map_size[index] - 1, (uint64_t)cfg->map_data[index]);
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return;
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mapping_failed:;
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cfg->map_type[index] = MAPTYPE_NONE;
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if (in)
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fclose(in);
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}
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struct emulator_config *load_config_file(char *filename) {
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FILE *in = fopen(filename, "rb");
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if (in == NULL) {
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printf("Failed to open config file %s for reading.\n", filename);
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return NULL;
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}
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char *parse_line = NULL;
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char cur_cmd[128];
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struct emulator_config *cfg = NULL;
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int cur_line = 1;
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parse_line = (char *)calloc(1, 512);
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if (!parse_line) {
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printf("Failed to allocate memory for config file line buffer.\n");
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return NULL;
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}
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cfg = (struct emulator_config *)calloc(1, sizeof(struct emulator_config));
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if (!cfg) {
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printf("Failed to allocate memory for temporary emulator config.\n");
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goto load_failed;
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}
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memset(cfg, 0x00, sizeof(struct emulator_config));
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cfg->cpu_type = M68K_CPU_TYPE_68000;
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while (!feof(in)) {
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int str_pos = 0;
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memset(parse_line, 0x00, 512);
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fgets(parse_line, 512, in);
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if (strlen(parse_line) <= 2 || parse_line[0] == '#' || parse_line[0] == '/')
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goto skip_line;
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trim_whitespace(parse_line);
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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switch (get_config_item_type(cur_cmd)) {
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case CONFITEM_CPUTYPE:
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cfg->cpu_type = get_m68k_cpu_type(parse_line + str_pos);
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break;
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case CONFITEM_MAP: {
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unsigned int maptype = 0, mapsize = 0, mapaddr = 0;
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int mirraddr = -1;
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char mapfile[128], mapid[128];
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memset(mapfile, 0x00, 128);
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memset(mapid, 0x00, 128);
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while (str_pos < (int)strlen(parse_line)) {
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get_next_string(parse_line, cur_cmd, &str_pos, '=');
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switch(get_map_cmd(cur_cmd)) {
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case MAPCMD_TYPE:
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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maptype = get_map_type(cur_cmd);
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//printf("Type! %s\n", map_type_names[maptype]);
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break;
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case MAPCMD_ADDRESS:
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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mapaddr = get_int(cur_cmd);
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//printf("Address! %.8X\n", mapaddr);
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break;
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case MAPCMD_SIZE:
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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mapsize = get_int(cur_cmd);
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//printf("Size! %.8X\n", mapsize);
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break;
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case MAPCMD_RANGE:
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get_next_string(parse_line, cur_cmd, &str_pos, '-');
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mapaddr = get_int(cur_cmd);
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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mapsize = get_int(cur_cmd) - 1 - mapaddr;
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//printf("Range! %d-%d\n", mapaddr, mapaddr + mapsize);
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break;
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case MAPCMD_FILENAME:
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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strcpy(mapfile, cur_cmd);
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//printf("File! %s\n", mapfile);
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break;
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case MAPCMD_MAP_ID:
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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strcpy(mapid, cur_cmd);
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//printf("File! %s\n", mapfile);
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break;
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case MAPCMD_OVL_REMAP:
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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mirraddr = get_int(cur_cmd);
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break;
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default:
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printf("Unknown/unhandled map argument %s on line %d.\n", cur_cmd, cur_line);
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break;
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}
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}
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add_mapping(cfg, maptype, mapaddr, mapsize, mirraddr, mapfile, mapid);
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break;
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}
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case CONFITEM_LOOPCYCLES:
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cfg->loop_cycles = get_int(parse_line + str_pos);
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printf("Set CPU loop cycles to %d.\n", cfg->loop_cycles);
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break;
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case CONFITEM_MOUSE:
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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cfg->mouse_file = (char *)calloc(1, strlen(cur_cmd) + 1);
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strcpy(cfg->mouse_file, cur_cmd);
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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cfg->mouse_toggle_key = cur_cmd[0];
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cfg->mouse_enabled = 1;
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printf("Enabled mouse event forwarding from file %s, toggle key %c.\n", cfg->mouse_file, cfg->mouse_toggle_key);
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break;
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case CONFITEM_KEYBOARD:
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get_next_string(parse_line, cur_cmd, &str_pos, ' ');
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cfg->keyboard_toggle_key = cur_cmd[0];
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printf("Enabled keyboard event forwarding, toggle key %c.\n", cfg->keyboard_toggle_key);
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break;
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case CONFITEM_NONE:
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default:
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printf("Unknown config item %s on line %d.\n", cur_cmd, cur_line);
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break;
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}
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skip_line:;
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cur_line++;
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}
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goto load_successful;
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load_failed:;
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if (cfg) {
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for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
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if (cfg->map_data[i])
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free(cfg->map_data[i]);
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cfg->map_data[i] = NULL;
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}
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free(cfg);
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cfg = NULL;
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}
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load_successful:;
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if (parse_line)
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free(parse_line);
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return cfg;
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}
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72
config_file/config_file.h
Normal file
72
config_file/config_file.h
Normal file
@ -0,0 +1,72 @@
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#include "../m68k.h"
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#define MAX_NUM_MAPPED_ITEMS 8
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#define SIZE_KILO 1024
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#define SIZE_MEGA (1024 * 1024)
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#define SIZE_GIGA (1024 * 1024 * 1024)
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typedef enum {
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MAPTYPE_NONE,
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MAPTYPE_ROM,
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MAPTYPE_RAM,
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MAPTYPE_REGISTER,
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MAPTYPE_NUM,
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} map_types;
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typedef enum {
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MAPCMD_UNKNOWN,
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MAPCMD_TYPE,
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MAPCMD_ADDRESS,
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MAPCMD_SIZE,
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MAPCMD_RANGE,
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MAPCMD_FILENAME,
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MAPCMD_OVL_REMAP,
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MAPCMD_MAP_ID,
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MAPCMD_NUM,
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} map_cmds;
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typedef enum {
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CONFITEM_NONE,
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CONFITEM_CPUTYPE,
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CONFITEM_MAP,
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CONFITEM_LOOPCYCLES,
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CONFITEM_MOUSE,
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CONFITEM_KEYBOARD,
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CONFITEM_NUM,
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} config_items;
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typedef enum {
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OP_TYPE_BYTE,
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OP_TYPE_WORD,
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OP_TYPE_LONGWORD,
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OP_TYPE_MEM,
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OP_TYPE_NUM,
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} map_op_types;
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struct emulator_config {
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unsigned int cpu_type;
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unsigned char map_type[MAX_NUM_MAPPED_ITEMS];
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long map_offset[MAX_NUM_MAPPED_ITEMS];
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unsigned int map_size[MAX_NUM_MAPPED_ITEMS];
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unsigned char *map_data[MAX_NUM_MAPPED_ITEMS];
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int map_mirror[MAX_NUM_MAPPED_ITEMS];
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char *map_id[MAX_NUM_MAPPED_ITEMS];
|
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|
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char *mouse_file;
|
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|
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char mouse_toggle_key, keyboard_toggle_key;
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unsigned char mouse_enabled, keyboard_enabled;
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unsigned int loop_cycles;
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};
|
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|
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unsigned int get_m68k_cpu_type(char *name);
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struct emulator_config *load_config_file(char *filename);
|
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|
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int handle_mapped_read(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type, unsigned char mirror);
|
||||
int handle_mapped_write(struct emulator_config *cfg, unsigned int addr, unsigned int value, unsigned char type, unsigned char mirror);
|
||||
int handle_register_read(unsigned int addr, unsigned char type, unsigned int *val);
|
||||
int handle_register_write(unsigned int addr, unsigned int value, unsigned char type);
|
||||
|
||||
int get_mouse_status(char *x, char *y, char *b);
|
||||
19
default.cfg
Normal file
19
default.cfg
Normal file
@ -0,0 +1,19 @@
|
||||
# Sets CPU type. Valid types are (probably) 68000, 68010, 68020, 68EC020, 68030, 68EC030, 68040, 68EC040, 68LC040 and some STTTT thing.
|
||||
cpu 68EC030
|
||||
# Map 512KB kickstart ROM to default offset.
|
||||
map type=rom address=0xF80000 size=0x80000 file=kick512.rom ovl=0
|
||||
# This is for mapping a 256KB kickstart ROM. I can probably add some additional thing about kicking this file into low/high area.
|
||||
#map type=rom address=0xFC0000 size=0x40000 file=kick256.rom ovl=0
|
||||
# Want to map an extended ROM, such as CDTV or CD32?
|
||||
#map type=rom address=0xF00000 size=0x90000 file=cdtv.rom
|
||||
# Map 256MB of Fast RAM at 0x8000000.
|
||||
map type=ram address=0x08000000 size=128M
|
||||
# Map Gayle as a register range.
|
||||
map type=register address=0xD80000 size=0x70000
|
||||
# Number of instructions to run every main loop.
|
||||
loopcycles 300
|
||||
# Forward mouse events to host system, defaults to off unless toggle key is pressed on the Pi.
|
||||
# Syntax is mouse [device] [toggle key]
|
||||
#mouse /dev/input/mouse0 m
|
||||
# Forward keyboard events to host system, defaults to off unless toggle key is pressed, toggled off using F12.
|
||||
#keyboard k
|
||||
236
emulator.c
236
emulator.c
@ -13,10 +13,31 @@
|
||||
#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <termios.h>
|
||||
#include <linux/input.h>
|
||||
#include "Gayle.h"
|
||||
#include "ide.h"
|
||||
#include "m68k.h"
|
||||
#include "main.h"
|
||||
#include "config_file/config_file.h"
|
||||
|
||||
int kbhit()
|
||||
{
|
||||
struct termios term;
|
||||
tcgetattr(0, &term);
|
||||
|
||||
struct termios term2 = term;
|
||||
term2.c_lflag &= ~ICANON;
|
||||
tcsetattr(0, TCSANOW, &term2);
|
||||
|
||||
int byteswaiting;
|
||||
ioctl(0, FIONREAD, &byteswaiting);
|
||||
|
||||
tcsetattr(0, TCSANOW, &term);
|
||||
|
||||
return byteswaiting > 0;
|
||||
}
|
||||
|
||||
//#define BCM2708_PERI_BASE 0x20000000 //pi0-1
|
||||
//#define BCM2708_PERI_BASE 0xFE000000 //pi4
|
||||
@ -71,15 +92,31 @@
|
||||
#define GAYLEBASE 0xD80000 // D7FFFF
|
||||
#define GAYLESIZE 0x6FFFF
|
||||
|
||||
#define JOY0DAT 0xDFF00A
|
||||
#define JOY1DAT 0xDFF00C
|
||||
#define CIAAPRA 0xBFE001
|
||||
#define POTGOR 0xDFF016
|
||||
|
||||
int kb_hook_enabled = 0;
|
||||
int mouse_hook_enabled = 0;
|
||||
|
||||
char mouse_dx = 0, mouse_dy = 0;
|
||||
char mouse_buttons = 0;
|
||||
|
||||
#define KICKBASE 0xF80000
|
||||
#define KICKSIZE 0x7FFFF
|
||||
|
||||
int mem_fd;
|
||||
int mem_fd, mouse_fd = -1;
|
||||
int mem_fd_gpclk;
|
||||
int gayle_emulation_enabled = 1;
|
||||
void *gpio_map;
|
||||
void *gpclk_map;
|
||||
|
||||
// Configurable emulator options
|
||||
unsigned int cpu_type = M68K_CPU_TYPE_68000;
|
||||
unsigned int loop_cycles = 300;
|
||||
struct emulator_config *cfg = NULL;
|
||||
|
||||
// I/O access
|
||||
volatile unsigned int *gpio;
|
||||
volatile unsigned int *gpclk;
|
||||
@ -126,14 +163,18 @@ volatile uint16_t srdata;
|
||||
volatile uint32_t srdata2;
|
||||
volatile uint32_t srdata2_old;
|
||||
|
||||
unsigned char g_kick[524288];
|
||||
unsigned char g_ram[FASTSIZE + 1]; /* RAM */
|
||||
//unsigned char g_kick[524288];
|
||||
//unsigned char g_ram[FASTSIZE + 1]; /* RAM */
|
||||
unsigned char toggle;
|
||||
static volatile unsigned char ovl;
|
||||
static volatile unsigned char maprom;
|
||||
|
||||
void sigint_handler(int sig_num) {
|
||||
printf("\n Exit Ctrl+C %d\n", sig_num);
|
||||
if (mouse_fd != -1)
|
||||
close(mouse_fd);
|
||||
if (mem_fd)
|
||||
close(mem_fd);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
@ -142,12 +183,12 @@ void *iplThread(void *args) {
|
||||
|
||||
while (42) {
|
||||
|
||||
if (GET_GPIO(1) == 0){
|
||||
toggle = 1;
|
||||
if (GET_GPIO(1) == 0) {
|
||||
toggle = 1;
|
||||
m68k_end_timeslice();
|
||||
//printf("thread!/n");
|
||||
//printf("thread!/n");
|
||||
} else {
|
||||
toggle = 0;
|
||||
toggle = 0;
|
||||
};
|
||||
usleep(1);
|
||||
}
|
||||
@ -163,6 +204,48 @@ int main(int argc, char *argv[]) {
|
||||
if (strcmp(argv[g], "--disable-gayle") == 0) {
|
||||
gayle_emulation_enabled = 0;
|
||||
}
|
||||
else if (strcmp(argv[g], "--cpu_type") == 0 || strcmp(argv[g], "--cpu") == 0) {
|
||||
if (g + 1 >= argc) {
|
||||
printf("%s switch found, but no CPU type specified.\n", argv[g]);
|
||||
} else {
|
||||
g++;
|
||||
cpu_type = get_m68k_cpu_type(argv[g]);
|
||||
}
|
||||
}
|
||||
else if (strcmp(argv[g], "--config-file") == 0 || strcmp(argv[g], "--config") == 0) {
|
||||
if (g + 1 >= argc) {
|
||||
printf("%s switch found, but no config filename specified.\n", argv[g]);
|
||||
} else {
|
||||
g++;
|
||||
cfg = load_config_file(argv[g]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!cfg) {
|
||||
printf("No config file specified. Trying to load default.cfg...\n");
|
||||
cfg = load_config_file("default.cfg");
|
||||
if (!cfg) {
|
||||
printf("Couldn't load default.cfg, empty emulator config will be used.\n");
|
||||
cfg = (struct emulator_config *)calloc(1, sizeof(struct emulator_config));
|
||||
if (!cfg) {
|
||||
printf("Failed to allocate memory for emulator config!\n");
|
||||
return 1;
|
||||
}
|
||||
memset(cfg, 0x00, sizeof(struct emulator_config));
|
||||
}
|
||||
}
|
||||
else {
|
||||
if (cfg->cpu_type) cpu_type = cfg->cpu_type;
|
||||
if (cfg->loop_cycles) loop_cycles = cfg->loop_cycles;
|
||||
}
|
||||
|
||||
if (cfg->mouse_enabled) {
|
||||
mouse_fd = open(cfg->mouse_file, O_RDONLY | O_NONBLOCK);
|
||||
if (mouse_fd == -1) {
|
||||
printf("Failed to open %s, can't enable mouse hook.\n", cfg->mouse_file);
|
||||
cfg->mouse_enabled = 0;
|
||||
}
|
||||
}
|
||||
|
||||
sched_setscheduler(0, SCHED_FIFO, &priority);
|
||||
@ -173,6 +256,8 @@ int main(int argc, char *argv[]) {
|
||||
signal(SIGINT, sigint_handler);
|
||||
setup_io();
|
||||
|
||||
//goto skip_everything;
|
||||
|
||||
// Enable 200MHz CLK output on GPIO4, adjust divider and pll source depending
|
||||
// on pi model
|
||||
printf("Enable 200MHz GPCLK0 on GPIO4\n");
|
||||
@ -247,7 +332,7 @@ int main(int argc, char *argv[]) {
|
||||
usleep(100);
|
||||
|
||||
// load kick.rom if present
|
||||
maprom = 1;
|
||||
/*maprom = 1;
|
||||
int fd = 0;
|
||||
fd = open("kick.rom", O_RDONLY);
|
||||
if (fd < 1) {
|
||||
@ -265,9 +350,10 @@ int main(int argc, char *argv[]) {
|
||||
read(fd, &g_kick, size);
|
||||
}
|
||||
printf("Loaded kick.rom with size %d kib\n", size / 1024);
|
||||
}
|
||||
}*/
|
||||
|
||||
// reset amiga and statemachine
|
||||
skip_everything:;
|
||||
cpu_pulse_reset();
|
||||
ovl = 1;
|
||||
m68k_write_memory_8(0xbfe201, 0x0001); // AMIGA OVL
|
||||
@ -276,7 +362,7 @@ int main(int argc, char *argv[]) {
|
||||
usleep(1500);
|
||||
|
||||
m68k_init();
|
||||
m68k_set_cpu_type(M68K_CPU_TYPE_68020);
|
||||
m68k_set_cpu_type(cpu_type);
|
||||
m68k_pulse_reset();
|
||||
|
||||
if (maprom == 1) {
|
||||
@ -295,10 +381,39 @@ int main(int argc, char *argv[]) {
|
||||
printf("\n IPL Thread created successfully\n");
|
||||
*/
|
||||
|
||||
int cpu_emulation_running = 1;
|
||||
|
||||
m68k_pulse_reset();
|
||||
while (42) {
|
||||
if (mouse_hook_enabled) {
|
||||
if (get_mouse_status(&mouse_dx, &mouse_dy, &mouse_buttons)) {
|
||||
//printf("Maus: %d (%.2X), %d (%.2X), B:%.2X\n", mouse_dx, mouse_dx, mouse_dy, mouse_dy, mouse_buttons);
|
||||
}
|
||||
}
|
||||
|
||||
m68k_execute(300);
|
||||
if (cpu_emulation_running)
|
||||
m68k_execute(loop_cycles);
|
||||
|
||||
while (kbhit()) {
|
||||
char c = getchar();
|
||||
if (c == cfg->keyboard_toggle_key && !kb_hook_enabled) {
|
||||
kb_hook_enabled = 1;
|
||||
printf("Keyboard hook enabled.\n");
|
||||
}
|
||||
else if (c == 0x1B && kb_hook_enabled) {
|
||||
kb_hook_enabled = 0;
|
||||
printf("Keyboard hook disabled.\n");
|
||||
}
|
||||
if (c == cfg->mouse_toggle_key) {
|
||||
mouse_hook_enabled ^= 1;
|
||||
printf("Mouse hook %s.\n", mouse_hook_enabled ? "enabled" : "disabled");
|
||||
mouse_dx = mouse_dy = mouse_buttons = 0;
|
||||
}
|
||||
if (c == 'r') {
|
||||
cpu_emulation_running ^= 1;
|
||||
printf("CPU emulation is now %s\n", cpu_emulation_running ? "running" : "stopped");
|
||||
}
|
||||
}
|
||||
/*
|
||||
if (toggle == 1){
|
||||
srdata = read_reg();
|
||||
@ -339,8 +454,15 @@ int cpu_irq_ack(int level) {
|
||||
return level;
|
||||
}
|
||||
|
||||
static unsigned int target = 0;
|
||||
|
||||
unsigned int m68k_read_memory_8(unsigned int address) {
|
||||
if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
if (cfg) {
|
||||
int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_BYTE, ovl);
|
||||
if (ret != -1)
|
||||
return target;
|
||||
}
|
||||
/*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
return g_ram[address - FASTBASE];
|
||||
}
|
||||
|
||||
@ -354,7 +476,7 @@ unsigned int m68k_read_memory_8(unsigned int address) {
|
||||
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
|
||||
return readGayleB(address);
|
||||
}
|
||||
}
|
||||
}*/
|
||||
|
||||
address &=0xFFFFFF;
|
||||
// if (address < 0xffffff) {
|
||||
@ -365,7 +487,39 @@ unsigned int m68k_read_memory_8(unsigned int address) {
|
||||
}
|
||||
|
||||
unsigned int m68k_read_memory_16(unsigned int address) {
|
||||
if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
if (cfg) {
|
||||
int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_WORD, ovl);
|
||||
if (ret != -1)
|
||||
return target;
|
||||
}
|
||||
|
||||
if (mouse_hook_enabled) {
|
||||
if (address == JOY0DAT) {
|
||||
// Forward mouse valueses to Amyga.
|
||||
unsigned short result = (mouse_dy << 8) | (mouse_dx);
|
||||
mouse_dx = mouse_dy = 0;
|
||||
return (unsigned int)result;
|
||||
}
|
||||
if (address == CIAAPRA) {
|
||||
unsigned short result = (unsigned int)read16((uint32_t)address);
|
||||
if (mouse_buttons & 0x01) {
|
||||
mouse_buttons -= 1;
|
||||
return (unsigned int)(result | 0x40);
|
||||
}
|
||||
else
|
||||
return (unsigned int)result;
|
||||
}
|
||||
if (address == POTGOR) {
|
||||
unsigned short result = (unsigned int)read16((uint32_t)address);
|
||||
if (mouse_buttons & 0x02) {
|
||||
mouse_buttons -= 2;
|
||||
return (unsigned int)(result | 0x2);
|
||||
}
|
||||
else
|
||||
return (unsigned int)result;
|
||||
}
|
||||
}
|
||||
/*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
return be16toh(*(uint16_t *)&g_ram[address - FASTBASE]);
|
||||
}
|
||||
|
||||
@ -379,7 +533,7 @@ unsigned int m68k_read_memory_16(unsigned int address) {
|
||||
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
|
||||
return readGayle(address);
|
||||
}
|
||||
}
|
||||
}*/
|
||||
|
||||
// if (address < 0xffffff) {
|
||||
address &=0xFFFFFF;
|
||||
@ -390,7 +544,12 @@ unsigned int m68k_read_memory_16(unsigned int address) {
|
||||
}
|
||||
|
||||
unsigned int m68k_read_memory_32(unsigned int address) {
|
||||
if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
if (cfg) {
|
||||
int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_LONGWORD, ovl);
|
||||
if (ret != -1)
|
||||
return target;
|
||||
}
|
||||
/*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
return be32toh(*(uint32_t *)&g_ram[address - FASTBASE]);
|
||||
}
|
||||
|
||||
@ -404,7 +563,7 @@ unsigned int m68k_read_memory_32(unsigned int address) {
|
||||
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
|
||||
return readGayleL(address);
|
||||
}
|
||||
}
|
||||
}*/
|
||||
|
||||
// if (address < 0xffffff) {
|
||||
address &=0xFFFFFF;
|
||||
@ -417,7 +576,12 @@ unsigned int m68k_read_memory_32(unsigned int address) {
|
||||
}
|
||||
|
||||
void m68k_write_memory_8(unsigned int address, unsigned int value) {
|
||||
if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
if (cfg) {
|
||||
int ret = handle_mapped_write(cfg, address, value, OP_TYPE_BYTE, ovl);
|
||||
if (ret != -1)
|
||||
return;
|
||||
}
|
||||
/*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
g_ram[address - FASTBASE] = value;
|
||||
return;
|
||||
}
|
||||
@ -427,13 +591,13 @@ void m68k_write_memory_8(unsigned int address, unsigned int value) {
|
||||
writeGayleB(address, value);
|
||||
return;
|
||||
}
|
||||
}
|
||||
/*
|
||||
}*/
|
||||
|
||||
if (address == 0xbfe001) {
|
||||
ovl = (value & (1 << 0));
|
||||
printf("OVL:%x\n", ovl);
|
||||
}
|
||||
*/
|
||||
|
||||
// if (address < 0xffffff) {
|
||||
address &=0xFFFFFF;
|
||||
write8((uint32_t)address, value);
|
||||
@ -444,7 +608,12 @@ void m68k_write_memory_8(unsigned int address, unsigned int value) {
|
||||
}
|
||||
|
||||
void m68k_write_memory_16(unsigned int address, unsigned int value) {
|
||||
if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
if (cfg) {
|
||||
int ret = handle_mapped_write(cfg, address, value, OP_TYPE_WORD, ovl);
|
||||
if (ret != -1)
|
||||
return;
|
||||
}
|
||||
/*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
*(uint16_t *)&g_ram[address - FASTBASE] = htobe16(value);
|
||||
return;
|
||||
}
|
||||
@ -454,7 +623,7 @@ void m68k_write_memory_16(unsigned int address, unsigned int value) {
|
||||
writeGayle(address, value);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}*/
|
||||
|
||||
// if (address < 0xffffff) {
|
||||
address &=0xFFFFFF;
|
||||
@ -465,7 +634,12 @@ void m68k_write_memory_16(unsigned int address, unsigned int value) {
|
||||
}
|
||||
|
||||
void m68k_write_memory_32(unsigned int address, unsigned int value) {
|
||||
if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
if (cfg) {
|
||||
int ret = handle_mapped_write(cfg, address, value, OP_TYPE_LONGWORD, ovl);
|
||||
if (ret != -1)
|
||||
return;
|
||||
}
|
||||
/*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
|
||||
*(uint32_t *)&g_ram[address - FASTBASE] = htobe32(value);
|
||||
return;
|
||||
}
|
||||
@ -474,7 +648,7 @@ void m68k_write_memory_32(unsigned int address, unsigned int value) {
|
||||
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
|
||||
writeGayleL(address, value);
|
||||
}
|
||||
}
|
||||
}*/
|
||||
|
||||
// if (address < 0xffffff) {
|
||||
address &=0xFFFFFF;
|
||||
@ -712,3 +886,15 @@ void setup_io() {
|
||||
gpclk = ((volatile unsigned *)gpio_map) + GPCLK_ADDR / 4;
|
||||
|
||||
} // setup_io
|
||||
|
||||
int get_mouse_status(char *x, char *y, char *b) {
|
||||
struct input_event ie;
|
||||
if (read(mouse_fd, &ie, sizeof(struct input_event)) != -1) {
|
||||
*b = ((char *)&ie)[0];
|
||||
*x = ((char *)&ie)[1];
|
||||
*y = ((char *)&ie)[2];
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
141
memory_mapped.c
Normal file
141
memory_mapped.c
Normal file
@ -0,0 +1,141 @@
|
||||
#include "config_file/config_file.h"
|
||||
#include "Gayle.h"
|
||||
#include <endian.h>
|
||||
|
||||
#define CHKRANGE(a, b, c) a >= (unsigned int)b && a < (unsigned int)(b + c)
|
||||
|
||||
static unsigned int target;
|
||||
|
||||
extern const char *map_type_names[MAPTYPE_NUM];
|
||||
const char *op_type_names[OP_TYPE_NUM] = {
|
||||
"BYTE",
|
||||
"WORD",
|
||||
"LONGWORD",
|
||||
"MEM",
|
||||
};
|
||||
|
||||
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;
|
||||
|
||||
//printf("Mapped read: %.8x\n", addr);
|
||||
|
||||
for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
|
||||
if (cfg->map_type[i] == MAPTYPE_NONE)
|
||||
continue;
|
||||
switch(cfg->map_type[i]) {
|
||||
case MAPTYPE_ROM:
|
||||
if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
|
||||
read_addr = cfg->map_data[i] + (addr - cfg->map_offset[i]);
|
||||
else if (cfg->map_mirror[i] != -1 && mirror && CHKRANGE(addr, cfg->map_mirror[i], cfg->map_size[i]))
|
||||
read_addr = cfg->map_data[i] + (addr - cfg->map_mirror[i]);
|
||||
break;
|
||||
case MAPTYPE_RAM:
|
||||
if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
|
||||
read_addr = cfg->map_data[i] + (addr - cfg->map_offset[i]);
|
||||
break;
|
||||
case MAPTYPE_REGISTER:
|
||||
if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
|
||||
handle_regs = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!read_addr && !handle_regs)
|
||||
continue;
|
||||
|
||||
if (handle_regs) {
|
||||
if (handle_register_read(addr, type, &target) != -1) {
|
||||
*val = target;
|
||||
return 1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
else if (read_addr) {
|
||||
//printf("Read %s from %s (%.8X) (%d)\n", op_type_names[type], map_type_names[cfg->map_type[i]], addr, mirror);
|
||||
//printf("Readaddr: %.8lX (Base %.8lX\n", (uint64_t)(read_addr), (uint64_t)cfg->map_data[i]);
|
||||
switch(type) {
|
||||
case OP_TYPE_BYTE:
|
||||
*val = read_addr[0];
|
||||
//printf("Read val: %.8lX (%d)\n", (uint64_t)val, *val);
|
||||
return 1;
|
||||
break;
|
||||
case OP_TYPE_WORD:
|
||||
*val = be16toh(((unsigned short *)read_addr)[0]);
|
||||
//printf("Read val: %.8lX (%d)\n", (uint64_t)val, *val);
|
||||
return 1;
|
||||
break;
|
||||
case OP_TYPE_LONGWORD:
|
||||
*val = be32toh(((unsigned int *)read_addr)[0]);
|
||||
//printf("Read val: %.8lX (%d)\n", (uint64_t)val, *val);
|
||||
return 1;
|
||||
break;
|
||||
case OP_TYPE_MEM:
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
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;
|
||||
|
||||
//printf("Mapped write: %.8x\n", addr);
|
||||
|
||||
for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
|
||||
if (cfg->map_type[i] == MAPTYPE_NONE)
|
||||
continue;
|
||||
switch(cfg->map_type[i]) {
|
||||
case MAPTYPE_ROM:
|
||||
if (cfg->map_mirror[i] != -1 && mirror && CHKRANGE(addr, cfg->map_mirror[i], cfg->map_size[i]))
|
||||
return -1;
|
||||
else if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
|
||||
return 1;
|
||||
break;
|
||||
case MAPTYPE_RAM:
|
||||
if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
|
||||
write_addr = cfg->map_data[i] + (addr - cfg->map_offset[i]);
|
||||
break;
|
||||
case MAPTYPE_REGISTER:
|
||||
if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
|
||||
handle_regs = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!write_addr && !handle_regs)
|
||||
continue;
|
||||
|
||||
if (handle_regs) {
|
||||
return handle_register_write(addr, value, type);
|
||||
}
|
||||
else if (write_addr) {
|
||||
//printf("Write %s to %s (%.8X) (%d)\n", op_type_names[type], map_type_names[cfg->map_type[i]], addr, mirror);
|
||||
//printf("Writeaddr: %.8lX (Base %.8lX\n", (uint64_t)(write_addr), (uint64_t)cfg->map_data[i]);
|
||||
switch(type) {
|
||||
case OP_TYPE_BYTE:
|
||||
write_addr[0] = (unsigned char)value;
|
||||
//printf("Write val: %.8X (%d)\n", (uint32_t)value, value);
|
||||
return 1;
|
||||
break;
|
||||
case OP_TYPE_WORD:
|
||||
((short *)write_addr)[0] = htobe16(value);
|
||||
//printf("Write val: %.8X (%d)\n", (uint32_t)value, value);
|
||||
return 1;
|
||||
break;
|
||||
case OP_TYPE_LONGWORD:
|
||||
((int *)write_addr)[0] = htobe32(value);
|
||||
//printf("Write val: %.8X (%d)\n", (uint32_t)value, value);
|
||||
return 1;
|
||||
break;
|
||||
case OP_TYPE_MEM:
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
51
registers/registers_amiga.c
Normal file
51
registers/registers_amiga.c
Normal file
@ -0,0 +1,51 @@
|
||||
#include "../Gayle.h"
|
||||
#include "../config_file/config_file.h"
|
||||
|
||||
#define GAYLEBASE 0xD80000 // D7FFFF
|
||||
#define GAYLESIZE 0x6FFFF
|
||||
|
||||
int handle_register_read(unsigned int addr, unsigned char type, unsigned int *val) {
|
||||
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(unsigned int addr, unsigned int value, unsigned char type) {
|
||||
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;
|
||||
}
|
||||
7
registers/registers_dummy.c
Normal file
7
registers/registers_dummy.c
Normal file
@ -0,0 +1,7 @@
|
||||
int handle_register_read(unsigned int addr, unsigned char type) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
int handle_register_write(unsigned int addr, unsigned char type) {
|
||||
return -1;
|
||||
}
|
||||
11
test.cfg
Normal file
11
test.cfg
Normal file
@ -0,0 +1,11 @@
|
||||
cpu 68000
|
||||
#map type=rom address=0xF80000 size=0x80000 file=kick512.rom ovl=0
|
||||
#map type=rom address=0xF00000 size=0x90000 file=cdtv.rom
|
||||
# Map 256MB of Fast RAM at 0x8000000.
|
||||
#map type=ram address=0x08000000 size=256M
|
||||
# Map Gayle as a register range.
|
||||
#map type=register address=0xD80000 size=0x70000
|
||||
# Number of instructions to run every main loop.
|
||||
loopcycles 300
|
||||
mouse /dev/input/mouse0 m
|
||||
keyboard k
|
||||
17
x68k.cfg
Normal file
17
x68k.cfg
Normal file
@ -0,0 +1,17 @@
|
||||
# Sets CPU type. Valid types are (probably) 68000, 68010, 68020, 68EC020, 68030, 68EC030, 68040, 68EC040, 68LC040 and some STTTT thing.
|
||||
cpu 68000
|
||||
|
||||
# Various ROM locations
|
||||
#map type=rom address=0xF00000 file=cgrom
|
||||
#map type=rom address=0xFC0000 file=scsiin
|
||||
#map type=rom address=0xFE0000 file=ipl
|
||||
|
||||
# 10MB of expanded RAM, for machines with 2MB internal.
|
||||
map type=ram address=2M size=10M
|
||||
# 11MB of expanded RAM, for machines with 1MB internal.
|
||||
#map type=ram address=1M size=11M
|
||||
|
||||
# Map Gayle as a register range.
|
||||
#map type=register address=0xD80000 size=0x70000
|
||||
# Number of instructions to run every main loop.
|
||||
loopcycles 60
|
||||
Loading…
x
Reference in New Issue
Block a user