6502
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6502-cpp
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100 Commits 2 Branches 2 Tags 237 KiB
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100 Commits

Author SHA1 Message Date
Jason Turner 165c63701a Stub in support for commander x16 2021-09-09 22:35:04 -06:00
Jason Turner 95f50f59af Minor updates to petscii generator 2021-09-05 17:35:12 -06:00
Jason Turner f410dfd38e Presentation code working 2021-08-31 17:57:08 -06:00
Jason Turner bda3c6a9fc "die" from exhaustion and full map movement 2021-07-18 18:57:17 -06:00
Jason Turner 17962801a0 Remove redundant flag fix-ups 2021-06-10 21:43:36 -06:00
Jason Turner d5c8460e83 Support labels + offset in translation 2021-06-10 21:37:02 -06:00
Jason Turner f3a37140ba Reorganize game code 2021-06-10 21:08:27 -06:00
Jason Turner 2536c4e2c7 Minor optimizer fixes 2021-06-02 21:12:28 -06:00
Jason Turner f52296a00f Add color support for drawing of text 2021-05-28 22:40:54 -06:00
Jason Turner 841a80f2dd Begin support for signed 'S' operations from AVR 2021-05-27 12:05:44 -06:00
Jason Turner 8b159faa59 Better label handling 2021-05-27 08:31:02 -06:00
Jason Turner 949e118ef7 Game map actions starting to work 2021-05-25 22:30:03 -06:00
Jason Turner bb51249b4c Optimize around single instruction jump statements 2021-05-25 19:12:16 -06:00
Jason Turner 13dbaafbfd Optimize out flag-fixing code followed by ldy 2021-05-25 18:56:10 -06:00
Jason Turner cc08629435 Fix parsing of literal expressions for adiw/subw 2021-05-25 18:42:57 -06:00
Jason Turner 1f03d18d5e Fix processing of labels to get std::variant working 2021-05-25 13:49:33 -06:00
Jason Turner 5b764ad179 Add AVR tst opcode 2021-05-23 13:53:52 -06:00
Jason Turner 5b6bfd138d Get some simple petscii graphics example 2021-05-23 13:53:34 -06:00
Jason Turner 7f8516d61d Add jmp instruction support 2021-05-21 12:18:13 -06:00
Jason Turner a04c937aeb Faster 16bit increment for index operations 2021-05-21 12:02:48 -06:00
Jason Turner af0a07b913 Completely revamp optimization algorithms for safety and ability 2021-05-21 11:26:49 -06:00
Jason Turner a1806a4ae2 Simplify testing to look for start and stop conditions of code 2021-05-20 18:26:21 -06:00
Jason Turner 8894f4b1cf Avoid optimizations around jsr and pla 2021-05-19 22:34:21 -06:00
Jason Turner 61e3609f47 Enable option to disable optimization of 6502 assembly 
- narrow down bug for optimized -O0 for 2d array writes
 2021-05-19 22:15:14 -06:00
Jason Turner 49cf9cc32d Initial support for __mulhi3 2021-05-19 21:34:33 -06:00
Jason Turner 468e794d5e Add lib1funcs.S from GCC, which should be compatible under LGPL 2021-05-19 20:09:47 -06:00
Jason Turner 434a61fe46 Add more test cases 2021-05-19 19:45:23 -06:00
Jason Turner 340c286b74 Use test templates to multiply out the versions I want 2021-05-19 15:44:27 -06:00
Jason Turner 49d68fe54c Add NOP support and allow for unused symbols 2021-05-19 15:18:44 -06:00
Jason Turner f64fa3cce6 Start adding tests 2021-05-19 14:28:05 -06:00
Jason Turner 681e35ba5f fix complement opcode translation 2021-05-17 13:58:50 -06:00
Jason Turner e2b2601705 Re-enable optimizations 2021-05-17 13:54:55 -06:00
Jason Turner c6a1a31533 Fix cpse instruction implementation from `bit` to `cmp` 2021-05-17 13:23:31 -06:00
Jason Turner ac8895120f Add icall, inc, and fix up some assembly parsing 2021-05-17 13:17:26 -06:00
Jason Turner e7a3db9dda Fix up some optimizer passes 2021-05-13 23:35:57 -06:00
Jason Turner 28ebf888e3 Start adding command line options, and some formatting fixes 2021-05-13 22:23:25 -06:00
Jason Turner 4cbdae3ffe Fix handling of 16 bit C,N,Z flags 2021-05-12 09:38:18 -06:00
Jason Turner a6f012878e Add 'call' instruction 2021-05-12 07:51:58 -06:00
Jason Turner 905e850abb Try to get carry/zero/N flags set properly for various branch states 2021-05-11 22:00:33 -06:00
Jason Turner 6c0e5a660d Add ror instruction 2021-05-11 20:44:38 -06:00
Jason Turner 9e44438f1e
Delete README.md 2021-05-11 10:43:39 -06:00
Jason Turner 47d4ce2342
Merge pull request #10 from lefticus/move_to_avr 
Move to avr
 2021-05-11 10:41:30 -06:00
Jason Turner a1c596622b Disable a fixup, which might not be necessary now 2021-05-11 09:18:03 -06:00
Jason Turner eedec41b1e Fix handling of sbc/sub and enable parsing of -fverbose-asm 2021-05-09 17:31:44 -06:00
Jason Turner 9fe26641b7 Add additional example 2021-05-09 08:39:55 -06:00
Jason Turner a4edf7194e Better stack handling. We now require -mtiny-stack from GCC 2021-05-08 22:59:35 -06:00
Jason Turner baf9c092ea Add some (broken) stack handling. Need to move to -mtiny-stack 2021-05-08 21:15:21 -06:00
Jason Turner d2241528e5 Implement a bunch more instructions 2021-05-08 17:58:14 -06:00
Jason Turner f79a189a12 Fix lookup of X,Y,Z registers 2021-05-08 16:01:25 -06:00
Jason Turner e6040763eb Some code organization and splitting up 2021-05-06 23:11:12 -06:00