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CHIP8 emulation crashes
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<blockquote data-quote="xeraxon" data-source="post: 6969934" data-attributes="member: 410022"><p>Hello. I made chip8 emulator to learn some emulation and C++ (<a href="https://github.com/xarexon/chip8emu" target="_blank">https://github.com/xarexon/chip8emu)</a>. It can play space invaders but some games make it crash (gfx array out of bounds, bogus X or Y) in draw command (0xDXYN). I looked at some other implementations and couldn't find what's wrong. </p><p></p><p><a href="https://github.com/mir3z/chip8-emu/blob/master/roms/Animal%20Race%20%5BBrian%20Astle%5D.ch8" target="_blank">Animal Race </a>doesn't show characters correctly. I'm pretty sure there is a javascript emu that shows them correctly but few other fail to show too.</p><p><a href="https://github.com/mir3z/chip8-emu/blob/master/roms/Vertical%20Brix%20%5BPaul%20Robson%2C%201996%5D.ch8" target="_blank">VBRIX </a>sometimes doesn't draw the ball to upper left corner when starting new game, and crashes sometime after you start game.</p><p></p><p>So my question is, am I overlooking something or is it some bug that needs to be emulated?</p></blockquote><p></p>
[QUOTE="xeraxon, post: 6969934, member: 410022"] Hello. I made chip8 emulator to learn some emulation and C++ ([URL='https://github.com/xarexon/chip8emu']https://github.com/xarexon/chip8emu)[/URL]. It can play space invaders but some games make it crash (gfx array out of bounds, bogus X or Y) in draw command (0xDXYN). I looked at some other implementations and couldn't find what's wrong. [URL='https://github.com/mir3z/chip8-emu/blob/master/roms/Animal%20Race%20%5BBrian%20Astle%5D.ch8']Animal Race [/URL]doesn't show characters correctly. I'm pretty sure there is a javascript emu that shows them correctly but few other fail to show too. [URL='https://github.com/mir3z/chip8-emu/blob/master/roms/Vertical%20Brix%20%5BPaul%20Robson%2C%201996%5D.ch8']VBRIX [/URL]sometimes doesn't draw the ball to upper left corner when starting new game, and crashes sometime after you start game. So my question is, am I overlooking something or is it some bug that needs to be emulated? [/QUOTE]
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