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David Haywood 844e696071 a regular 68000 processor will generate a read operation when using the clr.b/.w/.l opcodes, this was fixed / changed on the 020.
I'm not aware of any software explicitly requiring this right now, but it would be detectable if you have read-triggered hardware and various 68k documents advise caution when using the opcodes / porting code using said opcodes to a 020 based machine for that reason.

There was some private discussion with Charles before doing this, apparently it is detectable on the Genesis where a read from the VDP port will increment the internal address counter.
2013-08-21 06:56:57 +00:00
artwork HLSL Updates: [Ryan Holtz, Bat Country Entertainment, austere] 2011-06-06 21:25:38 +00:00
docs SDL.txt: edited by someone who actually knows what these do ;-) (nw) 2013-06-09 00:22:42 +00:00
hash megadriv demo that explicitly tells us how much our emulation sucks.. documenting it here because it will almost certainly end up being a useful test case later. (nw) 2013-08-19 19:56:48 +00:00
hlsl Fix raster_bloom_scale and vector_bloom_scale, nw 2013-05-22 22:25:23 +00:00
keymaps Added Swedish/Finnish SDL keymaps for OSX and Linux. [Curt Coder] 2012-08-29 18:41:01 +00:00
src a regular 68000 processor will generate a read operation when using the clr.b/.w/.l opcodes, this was fixed / changed on the 020. 2013-08-21 06:56:57 +00:00
web add sliders to settings page, and show current values (nw) 2013-08-19 13:44:04 +00:00
.gitattributes (MESS) Rainbow updates: 2013-08-20 03:35:47 +00:00
.gitignore added two more output folders to ignore list (nw) 2013-07-17 10:38:27 +00:00
makefile Initial commit of internal web server, mostly to check compiling on various platforms (nw) 2013-08-07 07:20:01 +00:00