diff options
| -rw-r--r-- | default.cfg | 6 | ||||
| -rw-r--r-- | genesis.c | 29 |
2 files changed, 32 insertions, 3 deletions
diff --git a/default.cfg b/default.cfg index 7362ffe..98f7591 100644 --- a/default.cfg +++ b/default.cfg @@ -169,5 +169,9 @@ ui { rom menu.bin } -default_region U +system { + ram_init zero + default_region U +} + @@ -7,6 +7,7 @@ #include "blastem.h" #include <stdlib.h> #include <ctype.h> +#include <time.h> #include "render.h" #include "gst.h" #include "util.h" @@ -766,8 +767,8 @@ static void set_speed_percent(system_header * system, uint32_t percent) void set_region(genesis_context *gen, rom_info *info, uint8_t region) { if (!region) { - char * def_region = tern_find_ptr(config, "default_region"); - if (def_region && (!info->regions || (info->regions & translate_region_char(toupper(*def_region))))) { + char * def_region = tern_find_path_default(config, "system\0default_region\0", (tern_val){.ptrval = "U"}).ptrval; + if (!info->regions || (info->regions & translate_region_char(toupper(*def_region)))) { region = translate_region_char(toupper(*def_region)); } else { region = info->regions; @@ -953,6 +954,30 @@ genesis_context *alloc_init_genesis(rom_info *rom, void *main_rom, void *lock_on gen->cart = main_rom; gen->lock_on = lock_on; gen->work_ram = calloc(2, RAM_WORDS); + if (!strcmp("random", tern_find_path_default(config, "system\0ram_init\0", (tern_val){.ptrval = "zero"}).ptrval)) + { + srand(time(NULL)); + for (int i = 0; i < RAM_WORDS; i++) + { + gen->work_ram[i] = rand(); + } + for (int i = 0; i < Z80_RAM_BYTES; i++) + { + gen->zram[i] = rand(); + } + for (int i = 0; i < VRAM_SIZE; i++) + { + write_vram_byte(gen->vdp, i, rand()); + } + for (int i = 0; i < CRAM_SIZE; i++) + { + write_cram(gen->vdp, i, rand()); + } + for (int i = 0; i < VSRAM_SIZE; i++) + { + gen->vdp->vsram[i] = rand(); + } + } setup_io_devices(config, rom, &gen->io); gen->save_type = rom->save_type; |