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Author SHA1 Message Date
Preston Skupinski
4106d81cdf use charAt for accessing characters in a string for IE compatibility, fixes #1 2011-12-23 18:04:06 -05:00
Preston Skupinski
95e5a75e92 move MMU and CPU_65816 to the bottom of the function 2011-12-22 00:53:51 -05:00
Preston Skupinski
1199bff3e1 further minor style changes 2011-12-22 00:10:36 -05:00
Preston Skupinski
188fc0e713 numerous style fixes and code cleanup 2011-12-21 23:36:00 -05:00
Preston Skupinski
6950345d03 use equal rather than equals as equals is deprecated 2011-12-16 00:45:03 -05:00
Preston Skupinski
ad4f9e3c76 use a self executing function to hide as much from global scope as possible 2011-12-15 00:00:20 -05:00
Preston Skupinski
3bbe3c9999 many numerous minor style fixes 2011-11-23 02:05:19 -05:00
Preston Skupinski
4e19f48383 move size checking to read_byte and store_byte functions and clean up 
all calls to those functions that do that checking
 2011-11-22 13:42:55 -05:00
Preston Skupinski
155a153a29 don't use "location" as a name for a variable, general cleanup and 
added checks where necessary
 2011-11-22 11:53:42 -05:00
Preston Skupinski
f7e6cdff02 have load_binary use store_byte_long rather than store_byte 2011-11-06 19:34:32 -05:00
Preston Skupinski
7b016f1abb updated the TODO 2011-11-06 10:15:42 -05:00
Preston Skupinski
135be106d9 Added executing only a set number of cycles per second and fixed the 
problems firefox had with it
 2011-11-06 00:20:31 -04:00
Preston Skupinski
a9b70c8ad0 Rework the way the cpu object loads and executes code 2011-11-05 21:45:36 -04:00
Preston Skupinski
798dd18835 use the correct p status register bit in DEC accumulator 2011-10-30 22:12:50 -04:00
Preston Skupinski
5f0424fd0b update the TODO now that cycle counting has been added to everything 2011-10-30 00:22:44 -04:00
Preston Skupinski
a1a337f3f6 finish adding cycle counting to the remaining instructions 2011-10-30 00:18:36 -04:00
Preston Skupinski
06d512a668 added cycle counting to even more instructions 2011-10-29 22:30:28 -04:00
Preston Skupinski
5a44410146 numerous more instructions now feature cycle counting 2011-10-29 20:53:32 -04:00
Preston Skupinski
fdaf4dd024 added cycle counting to numerous instructions 2011-10-28 21:15:55 -04:00
Preston Skupinski
f98a4770d7 added cycle counting to numerous instructions 2011-10-19 17:09:57 -04:00
Preston Skupinski
16f32df754 don't remove memory mapped io devices on cpu reset 2011-10-12 15:19:55 -04:00
Preston Skupinski
10cd88d08e Make sure branching can't cause the program counter to go below zero 
or above 0xffff
 2011-10-12 14:39:25 -04:00
Preston Skupinski
833048fefa added numerous tests for stz 2011-10-02 22:33:54 -04:00
Preston Skupinski
03a5217759 make sure lines don't go past column 80 in cpu.js 2011-09-15 13:55:13 -04:00
Preston Skupinski
d902611e9c added decimal mode support for SBC, wrote unit tests to verify that support and updated the TODO 2011-09-04 11:34:09 -04:00
Preston Skupinski
b505f7a50d handle the carry bit properly when in decimal mode for adc 2011-09-03 22:07:44 -04:00
Preston Skupinski
7cee0a3cd1 added decimal mode support for adc with 16-bit memory/accumulator mode and wrote unit tests to verify it 2011-09-03 21:56:39 -04:00
Preston Skupinski
8a1f3364ff Merge branch 'master' of github.com:scud43/JavaScript-65816 2011-09-03 21:22:49 -04:00
Preston Skupinski
990bbdc06c add decimal mode support for adc in emulation or 8-bit memory/accumulator mode and wrote up unit tests to verify it 2011-09-03 21:20:52 -04:00
Preston Skupinski
b4bda09bf6 added more unit tests for LDA(absolute long, absolute long indexed x) 2011-09-02 22:43:47 -04:00
Preston Skupinski
3f23b8f7f7 added some more unit tests for LDA(stack relative and absolute indexed y) 2011-09-01 16:20:34 -04:00
Preston Skupinski
c9a559ab6e added more unit tests for LDA and provided all of the dependencies for running the unit tests so no internet connection is required to use that page 2011-09-01 14:37:34 -04:00
Preston Skupinski
fadcea4c5d added more unit tests for LDA and fixed a bug in the implemention of the direct page indirect mode for LDA 2011-08-31 15:41:27 -04:00
Preston Skupinski
a8f5cc4556 added more unit tests for LDA 2011-08-31 14:22:35 -04:00
Preston Skupinski
d2a9f2589c begin work on unit tests for LDA 2011-08-30 12:39:43 -04:00
Preston Skupinski
3c77ef7dfa update the README 2011-08-30 11:08:17 -04:00
Preston Skupinski
90cf744589 turn MMU into a function object so multiple cpu objects can be used at once and fixes a long standing bug where various unit tests would randomly fail 2011-08-30 10:44:45 -04:00
Preston Skupinski
19c9215181 add basic stepping support 2011-07-18 20:44:55 -04:00
Preston Skupinski
aa2d06839e update the TODO 2011-07-11 19:17:41 -04:00
Preston Skupinski
4a9456f83f added a reset function 2011-07-11 19:04:51 -04:00
Preston Skupinski
5ada2b1daa added a basic interface for interacting with the emulator 2011-07-10 20:43:03 -04:00
Preston Skupinski
dbe014ada1 added STP 2011-06-19 13:13:29 -04:00
Preston Skupinski
5813feaa89 added WAI 2011-06-12 21:23:02 -04:00
Preston Skupinski
8377d8c009 added JSR absolute indexed x indirect 2011-06-12 19:37:07 -04:00
Preston Skupinski
a9e15285cb added JMP absolute indexed x indirect 2011-06-12 18:54:16 -04:00
Preston Skupinski
26fddd8943 added WDM 2011-06-09 20:24:05 -04:00
Preston Skupinski
eff69c28bc added JMP absolute long and JMP absolute indirect long 2011-06-09 20:01:36 -04:00
Preston Skupinski
fe0117a1e0 the cpu object is now passed as the first argument to memory mapped io device interaction functions 2011-06-04 11:36:20 -04:00
Preston Skupinski
a0b9497eb4 added TXS and TSX 2011-06-01 13:17:03 -04:00
Preston Skupinski
4f98a754b7 added TRB and both addressing modes for it 2011-06-01 13:01:16 -04:00