Commit Graph

20 Commits

Author SHA1 Message Date
f4b22951d0 Cleaned up some pieces of code and fixed a bug 2023-05-04 00:49:04 +01:00
82baacfd5b Fixed race condition giving garbage data on debug register write prints and ordering of reg write and instr fetch debug prints 2023-03-12 08:55:40 +00:00
11624ca2d2 Added the OUT instruction to be able to properly address I/O and moved printing logic to a device on the I/O space. Also added IRET which is basically just a RET in this case 2023-03-09 06:03:13 +00:00
9de83fd7c1 Added partial support for the software interrupt INT instruction 2023-03-08 07:26:28 +00:00
ba52ff89e6 Fixed most problems verilator's linter found 2023-03-04 06:22:28 +00:00
59ec1b7a15 Removed remnants of the old memory addressing system 2023-03-03 20:43:25 +00:00
e1bb98c0f0 Updated toolchain versions and run project through aspell 2023-03-03 06:54:33 +00:00
f60084344e Overhauled cpu frontend. Made memory byte addressable (necessary), cleaned up state machine and fixed small bug with MOV 2023-03-03 06:29:06 +00:00
f7d76f1944 Removed useless state in the state machine and ran the project through aspell 2023-02-26 02:46:43 +00:00
5af6d720c3 Fixed ADD again and some memory read logic. Compiler runs the default brainfuck message program!! 2023-02-24 14:10:07 +00:00
355c673a37 Added a POP instruction 2023-02-24 11:31:15 +00:00
abee49d6c3 Implemented PUSH instruction, fixed register addressing bug and a RET bug 2023-02-24 07:32:27 +00:00
a189da249c Added STOS instruction. Native brainfuck compiler started generating code! 2023-02-24 05:01:55 +00:00
e684db8348 Added support to CMP for compare memory to opcode parameter, added support for both PROC_DE_LOAD_?_PARAM and PROC_MEMIO_READ at the same command and associated changes 2023-02-24 02:18:48 +00:00
c4ac55d4c3 Implemented the RET instruction,fixed CALL bug, clarified MOD naming and usage 2023-02-23 14:48:48 +00:00
7fde422341 Added Microcode support, Stack, implemented the CALL instruction in microcode and grouped the wires on the decoder module 2023-02-22 01:28:23 +00:00
e6c9c722e3 Run the project through aspell and tweaked the README 2023-02-19 00:52:52 +00:00
fd4a9b5442 Fixed register addressing bug, mem read endianness, cleaned up code and added a provisional project logo 2023-02-19 00:20:53 +00:00
82bd859874 Moved the decoding of opcodes into a separate module and optimised memory reads 2023-02-17 18:08:09 +00:00
ded47555a5 Improved build system and project directory structure 2023-02-16 01:52:02 +00:00