Mercurial > repos > blastem
annotate multi_game.c @ 1500:39a199dca772 nuklear_ui
Added dropdowns for default region and savestate format
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 11 Dec 2017 09:50:47 -0800 |
parents | adb62000d296 |
children | d74d3998482c |
rev | line source |
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1 #include "genesis.h" |
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Michael Pavone <pavone@retrodev.com>
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2 |
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3 void *write_multi_game_b(uint32_t address, void *vcontext, uint8_t value) |
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Michael Pavone <pavone@retrodev.com>
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4 { |
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5 m68k_context *context = vcontext; |
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6 genesis_context *gen = context->system; |
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Michael Pavone <pavone@retrodev.com>
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7 gen->bank_regs[0] = address; |
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Support a couple of bootleg X-in-1 carts
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8 uint32_t base = (address & 0x3F) << 16, start = 0, end = 0x400000; |
11ac0b511cff
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9 //find the memmap chunk, so we can properly mask the base value |
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10 for (int i = 0; i < context->options->gen.memmap_chunks; i++) |
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Michael Pavone <pavone@retrodev.com>
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11 { |
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12 if (context->options->gen.memmap[i].flags & MMAP_PTR_IDX) { |
11ac0b511cff
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13 base &= context->options->gen.memmap[i].mask; |
11ac0b511cff
Support a couple of bootleg X-in-1 carts
Michael Pavone <pavone@retrodev.com>
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14 start = context->options->gen.memmap[i].start; |
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15 end = context->options->gen.memmap[i].end; |
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Michael Pavone <pavone@retrodev.com>
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16 break; |
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Michael Pavone <pavone@retrodev.com>
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17 } |
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Michael Pavone <pavone@retrodev.com>
parents:
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18 } |
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Michael Pavone <pavone@retrodev.com>
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19 context->mem_pointers[gen->mapper_start_index] = gen->cart + base/2; |
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20 m68k_invalidate_code_range(context, start, end); |
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21 return vcontext; |
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Michael Pavone <pavone@retrodev.com>
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22 } |
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Michael Pavone <pavone@retrodev.com>
parents:
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23 |
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parents:
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24 void *write_multi_game_w(uint32_t address, void *context, uint16_t value) |
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Michael Pavone <pavone@retrodev.com>
parents:
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25 { |
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26 return write_multi_game_b(address, context, value); |
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Michael Pavone <pavone@retrodev.com>
parents:
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27 } |
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parents:
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28 |
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29 void multi_game_serialize(genesis_context *gen, serialize_buffer *buf) |
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Michael Pavone <pavone@retrodev.com>
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30 { |
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31 save_int8(buf, gen->bank_regs[0]); |
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parents:
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32 } |
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33 |
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parents:
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34 void multi_game_deserialize(deserialize_buffer *buf, genesis_context *gen) |
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Michael Pavone <pavone@retrodev.com>
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35 { |
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36 write_multi_game_b(load_int8(buf), gen->m68k, 0); |
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37 } |