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65816.js
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194 Commits

Author SHA1 Message Date
Preston Skupinski e7677c81e7 allow bytes_required to be specified as a number for cases where it never changes 2013-08-08 23:43:34 -04:00
Preston Skupinski f874da1167 Fix some bugs static code analysis caught 2012-12-12 23:39:35 -05:00
Preston Skupinski bc5c59469f Decided loading binaries from a url was not appropriate for the base emulator, whatever is extending it or using it is responsible for that 2012-12-12 22:57:38 -05:00
Preston Skupinski ae14e7382a Update the TODO and the copyright email since msu only provides you with access to your @msu.edu email address for two years after graduation 2012-12-02 23:18:41 -05:00
Preston Skupinski 9c7b6c7e3c make sure a variable is local and doesn't accidentally get introduced to the global scope 2012-08-09 23:05:28 -04:00
Preston Skupinski 6ac0302401 add a title to the tests page 2012-08-09 22:55:28 -04:00
Preston Skupinski 6eb02301dc switch tests to use strictEqual rather than equal and perform some cleanup 2012-08-09 22:55:19 -04:00
Preston Skupinski 43ed2b1bad update the test index.html to reflect the name change 2012-08-09 20:59:00 -04:00
Preston Skupinski 8b2cef5721 Renaming the core project file and project to a far better name which succinctly expresses what the library deals with 2012-08-05 18:05:16 -04:00
Preston Skupinski 4c3619abe4 get rid of the example page and the library it used from the repo 2012-08-05 17:53:08 -04:00
Preston Skupinski fddcbeb865 fix support for requiring the cpu as a node.js module and a problem in the javascript in example page 2012-05-31 10:43:51 -04:00
Preston Skupinski 23b595ba74 switch global used from "window" to "this" for node.js support 2012-05-31 08:46:24 -04:00
Preston Skupinski 351218b5b0 update the TODO 2012-02-17 16:37:19 -05:00
Preston Skupinski 898c16637a use read_word_long to clean up reading where the program counter should 
point to when there is an interrupt
 2012-01-05 21:02:57 -05:00
Preston Skupinski 12b352cfa5 Cleanup of SEP and REP 2012-01-05 19:49:35 -05:00
Preston Skupinski 0def76f12a Cleanup of the set and clear p flag instructions 2012-01-05 19:29:50 -05:00
Preston Skupinski 2d50806882 made the Direct_page_indexed_x template into Direct_page_indexed and 
have it take the register it operates on
 2012-01-05 01:02:23 -05:00
Preston Skupinski cdf374dcd0 Cleanup of branch instructions 2012-01-05 00:50:49 -05:00
Preston Skupinski 577b47a497 cleanup of DEC instructions and started writing tests for them 2012-01-03 10:15:43 -05:00
Preston Skupinski 55f059b09c Cleaned up INC instructions 2012-01-02 20:43:48 -05:00
Preston Skupinski 2158ce0fb2 wrote a generic template for the increment instructions that work on 
registers and used it for those instructions
 2012-01-02 15:16:56 -05:00
Preston Skupinski 213398bc35 add some more checking of flags to the increment instruction tests 2012-01-02 01:12:38 -05:00
Preston Skupinski 76a50808ac added tests for INC just for when working on the accumulator, INX and 
INY
 2012-01-02 00:45:23 -05:00
Preston Skupinski 0539c5c5ff move zero checking from end of each if block to end of function 2012-01-01 23:53:31 -05:00
Preston Skupinski e1f827b446 use cpu_lib.addressing.Absolute_indexed_x for LDY_absolute_indexed_x 2011-12-31 19:41:24 -05:00
Preston Skupinski e6ce09016f move common addressing functionality for direct page indirect long indexed y to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 19:26:05 -05:00
Preston Skupinski 29a238b5bd move common addressing functionality for direct page indirect indexed y to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 19:12:39 -05:00
Preston Skupinski 10d0ee341b move common addressing functionality for direct page indirect long to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 18:52:52 -05:00
Preston Skupinski 664bf85268 move common addressing functionality for direct page indexed x indirect to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 18:38:08 -05:00
Preston Skupinski 23bedf5ce7 move common addressing functionality for absolute long indexed x to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 18:17:19 -05:00
Preston Skupinski a29ee2fb7c move common addressing functionality for absolute long to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 18:01:06 -05:00
Preston Skupinski 9398885bc2 move common addressing functionality for direct page indirect to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 17:32:39 -05:00
Preston Skupinski 0f73c71a7e move common addressing functionality for stack relative indirect indexed y to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 17:21:24 -05:00
Preston Skupinski 1fd918801a move common addressing functionality for absolute indexed y to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 16:56:57 -05:00
Preston Skupinski 19e50d4bf7 move common addressing functionality for absolute indexed x to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 16:56:48 -05:00
Preston Skupinski 72508335ba move common addressing functionality for stack relative to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 15:52:45 -05:00
Preston Skupinski 539aaff3ce move common addressing functionality for direct page indexed x to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 15:26:41 -05:00
Preston Skupinski 65b7448052 move common addressing functionality for direct page and absolute to cpu_lib and use that as the basis for instructions that utilize that addressing mode 2011-12-31 15:26:29 -05:00
Preston Skupinski 4c5c5dc631 add unit tests for memory mapped io device support 2011-12-29 01:37:01 -05:00
Preston Skupinski 84472fab78 use read_byte_long rather than directly accessing bytes in the memory 
array in the tests
 2011-12-29 00:17:29 -05:00
Preston Skupinski 26ea82204f added the ability for the cpu to load in an array of bytes 2011-12-27 19:33:14 -05:00
Preston Skupinski 64fbd28610 remove trailing whitespace 2011-12-27 19:04:10 -05:00
Preston Skupinski 225755bfb2 added functions for reading and storing words and then refactored the 
codebase to use that instead where useful
 2011-12-27 18:55:44 -05:00
Preston Skupinski cd3c112b00 change 'reg' to 'r' in cpu_lib to shorten up calls and have it look more 
like using the normal cpu object
 2011-12-27 16:00:54 -05:00
Preston Skupinski 5ca04694de started refactoring the codebase by turning zero checks to either set or clear the p status register z flag into a function in a helper library 2011-12-27 01:16:05 -05:00
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