summaryrefslogtreecommitdiff
path: root/lexer.c
AgeCommit message (Collapse)Author
2020-06-11Did some more stuff.mrb0nk500
- Fix some bugs with strings. - Started to refactor the instruction functions. - Added support for using RS prefixes on the memory based increment, and decrement instructions. - Started work on SuBAsm's lexer. Have fun looking at this, BieHDC. :)
2020-06-01Did some more refactoring to the assembler.mrb0nk500
- Refactored the symbol, and fixup table to now use a linked list - Added support for local symbols to the assembler. - Rewrote SuBEditor, and SuBAsm to use local symbols.
2020-05-30Refactored the assembler a bit more, in order to removemrb0nk500
code duplication. The assembler now uses pre-tokens, which are smaller tokens, that make up the larger tokens.
2020-05-28Refactored the assembler, yet again, and implementedmrb0nk500
support for comma separated values. The assembler now uses a linked list of tokenized lines, each containing a linked list of tokens for that line. I also moved all of the large tables into the higher parts of memory, in order to free up the lower part of memory for the user. Comma sepparated values only work with directives, and only with the byte", word, dword, and qword directives. I also added support for getting the upper, and lower halves of an address. The tokens for both of those are '<', and '>' respectively.
2020-05-18Fixed some more bugs in the assembler.mrb0nk500
2020-05-18Did alot of stuff while I was up at the family trailer.mrb0nk500
- Moved the large enums, and large tables into separate header files. - Added enums for implementing the base extension - Fixed a bug in the assembler. - Worked more on SuBAsm.
2020-05-09Added support for single quote marks to the emulator'smrb0nk500
assembler. Single quote marks works in the assembler just like they do in C, except that it only supports a handful of escaped characters, like '\n', and '\r'.
2020-05-06Removed some duplicate code in the assembler, and mademrb0nk500
the processor status register, a union now.
2020-04-27Added support for including source files to themrb0nk500
emulator's assembler. And removed three pointers, and the linewrap table from zero page, in SuBEditor. I moved the linewrap table to address $1000. And because of finally adding include support to the assembler, I can now start work on SuBAsm!
2020-04-19Removed most of the commented code, and optimized themrb0nk500
emulator some more. I optimized the emulator by replacing the main loop from a conditional while loop, to an unconditional for loop.
2020-04-17Made both the assembly language monitor, and themrb0nk500
emulator smaller, and faster. I am also starting to make SuBEditor's source code more readable.
2020-04-09Completely changed the assembler.mrb0nk500
It now has a lexer/tokenizer, along with a parser. I have also made the emulator even smaller.