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comparison genesis.c @ 2194:01ff005b08f6

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Very rudimentary support for Game Gear VDP emulation
author Michael Pavone <pavone@retrodev.com>
date Sun, 21 Aug 2022 22:29:47 -0700
parents 408fb8a7e990
children eaaf28af3c94
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2193:d00fb9c6a6a2 2194:01ff005b08f6
1871 } else { 1871 } else {
1872 gen->vdp_unlocked = 1; 1872 gen->vdp_unlocked = 1;
1873 } 1873 }
1874 1874
1875 uint8_t max_vsram = !strcmp(tern_find_ptr_default(model, "vsram", "40"), "64"); 1875 uint8_t max_vsram = !strcmp(tern_find_ptr_default(model, "vsram", "40"), "64");
1876 gen->vdp = init_vdp_context(gen->version_reg & 0x40, max_vsram); 1876 gen->vdp = init_vdp_context(gen->version_reg & 0x40, max_vsram, VDP_GENESIS);
1877 gen->vdp->system = &gen->header; 1877 gen->vdp->system = &gen->header;
1878 gen->frame_end = vdp_cycles_to_frame_end(gen->vdp); 1878 gen->frame_end = vdp_cycles_to_frame_end(gen->vdp);
1879 char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0", TVAL_PTR).ptrval; 1879 char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0", TVAL_PTR).ptrval;
1880 gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL; 1880 gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL;
1881 gen->int_latency_prev1 = MCLKS_PER_68K * 32; 1881 gen->int_latency_prev1 = MCLKS_PER_68K * 32;