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65816.js
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194 Commits

Author SHA1 Message Date
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
Preston Skupinski 48c6fe5cf9 added TSB and both addressing modes for it 2011-05-30 19:55:59 -04:00
Preston Skupinski c9d491411b added the rest of the addressing modes for BIT and fixed a bug in a few operations 2011-05-30 19:22:19 -04:00
Preston Skupinski 71552b5720 added BIT immediate 2011-05-30 18:57:20 -04:00
Preston Skupinski 150d6e57d2 added basic memory mapped i/o support 2011-05-30 17:23:00 -04:00
Preston Skupinski 688c2aaaa3 added DEC and INC direct page indexed x and absolute indexed x 2011-05-23 21:37:28 -04:00