glm94/assm-test
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  • c95d739e16 Updated the parser to handle treating variables as expressions. Updated the symbols table to handle computing the values of variables. ast glm94 2023-09-07 21:29:58 -05:00
  • 21c2bf046e Wrote the very first part of the tree walking code, more just to make sure the logic is sound. glm94 2023-09-01 10:04:21 -05:00
  • b810d7803c Updated the parser to create an expression tree for symbols declared via .db directives. Scanner now see some math operators as 'punctuation'. glm94 2023-08-31 23:27:33 -05:00
  • 9e178ca3da Build a quick draft of how the symbol value should be computed. glm94 2023-08-25 01:27:22 -05:00
  • 82b2136a69 Started to work on setting up Symbol value resolution which will be based on an abstract syntax tree that can handle undefined values if unknown symbols are used in an expression. glm94 2023-08-25 00:21:19 -05:00
  • 4bb90da6df Make the compiler options a bit more strict about C compliance (in other words I just learned about these flags and they seem to be ideal for this project). main glm94 2023-08-25 00:15:18 -05:00
  • 4af2527806 Updated the structure of symbols and tokens to hopefully help make computing symbol values easier. glm94 2023-08-07 01:18:01 -05:00
  • 65383cded2 Updated the way symbols are represented and how they are marked as resolved. glm94 2023-07-09 22:04:55 -05:00
  • 9c8fe17c8f Minor code cleanup and added an extra flag to the compiler. If a symbol is a label it will now hold a reference to the opcode and by extension the offset into the file it points to. glm94 2023-07-06 19:39:03 -05:00
  • 3031fa8b9b Code cleanup. glm94 2023-06-29 20:53:39 -05:00
  • 2918f2964d Fixed a bug where words weren't being written to 'memory' correctly. glm94 2023-06-24 18:00:13 -05:00
  • 980b0449fc Fixed a bug with the parse discarding identifier tokens when parsing a COPY instruction. Added the first batch of code to encode the final token array to a binary form. glm94 2023-06-22 20:22:20 -05:00
  • 6741dde7ce Hooked up the program counter in the parser to set the memory offset of symbols, well labels to be more acurrate. glm94 2023-06-18 14:51:37 -05:00
  • c6e6e2c5dc Fixed a bug in the parser not setting an identifier when one is used with a CMP and fixed a bug in the example assembly program. glm94 2023-06-18 12:11:30 -05:00
  • 0eaa5527ea Updated the parser to be able to handle the changes made to the ISA. glm94 2023-06-18 00:50:18 -05:00
  • 403439def4 Updated the opcode listing and 'fixed' the code to at least compile, but obviously I'll need to rework how the new copy instructions are to be parsed. Fixed some errors in the documentation where I skipped some hex numbers and added a copy immediate op. glm94 2023-06-17 21:15:08 -05:00
  • 0fd6413d81 Updated the instruction set and mapped out the opcodes as well as wrote a sample program to see if the ISA was complete enough to build a trivial program. glm94 2023-06-17 16:56:42 -05:00
  • a9e57132be Fixed issue #1 Scanner Bug where the start of comment would become part of an identifier or throw off number parsing. glm94 2023-04-14 13:28:44 -05:00
  • aa3888b578 Fixed up the RemoveCurrentToken function which was causing all sorts of bugs, and added the ability to delcare a data byte, '.db', to have a variable's address as a value. This will be needed for building up an interrupt table at least with the version I have in mind. glm94 2023-04-04 22:14:17 -05:00
  • c3d12da54a Added some ideas to the encoding scheme to be used by the processor. glm94 2023-03-30 13:21:25 -05:00
  • 288ba9f9cb Updated the docs to include new jump operands and setup the assembler to handle parsing all the jump instructions. glm94 2023-03-29 22:30:12 -05:00
  • a9a50055a4 Updated the parser to validate most of the opcodes. NOP falls through via the default case since it takes no parameters but the jump instructions need some thought before proceeding. glm94 2023-03-29 20:57:04 -05:00
  • 2e888913be Added support for the STORE directive. glm94 2023-03-29 12:57:07 -05:00
  • ee60d14570 Refactored the code and added expect functions to make the code flow a bit nicer. glm94 2023-03-29 12:41:53 -05:00
  • fa12a04bb3 Moved some of the grunt work to their own functions to clean the code up a bit. glm94 2023-03-28 22:14:31 -05:00
  • 2d7aad1617 Fixed a bug with labels not advancing the parser after being processed resulting in a redefinition error. glm94 2023-03-28 12:41:56 -05:00
  • ae03991fa5 Fixed some parser bugs processing the syntax for some LOAD instruction types. glm94 2023-03-27 22:22:01 -05:00
  • 95ed2143ea Updated the parser to handle processing a simple load byte instruction. Added the LODB opcode to the opcode enum listing and updated the Scanner to look for 'byte' and mark it as a directive. glm94 2023-03-24 23:24:24 -05:00
  • f96e1c6380 Added grammar checking for DB declarations. glm94 2023-03-08 21:38:33 -06:00
  • 4f9f4202b2 Wrote the first batch of directive handling code, so far just handling creating variables. glm94 2023-03-08 13:25:46 -06:00
  • 4230708f15 Added a function to remove an item from the generic list, which is mainly used for the tokens. glm94 2023-03-07 21:31:14 -06:00
  • 5e9e1bdec4 Massive refactoring to simplify this whole setup. The Token List will be modified in place and reused in the Parser to normalize the list and generate a symbols table. Normalizing the token list will make sure the syntax is valid and the symbols table will have the relative offsets and length of symbol values. At least this is all the plan but one step at a time. glm94 2023-03-06 21:51:36 -06:00
  • 1b246e90bc Started rethinking how this machine should behave. Updated and refactoring some things with a few new ideas. glm94 2023-02-23 22:22:07 -06:00
  • 9a602824b6 Added all the instructions supported to a structure to help make validation of parameters easier. glm94 2022-10-18 21:14:50 -05:00
  • 6d6bf1cbaf Wrote the first step for the binary output. Doesn't handle instruction pointer symbols yet since those emit addresses that still need to be computed. glm94 2022-10-10 18:36:38 +00:00
  • bca2ad67f1 Fixed a bug with single parameter instructions that land at the end of a file expecting a comma. glm94 2022-10-08 22:02:51 -05:00
  • fd44e03b1b Updated the Parser to try and give 'AddressParameter's more meaning depending on the SymbolType. glm94 2022-10-08 18:21:11 -05:00
  • 48a77950be Updated the way string symbols are handled, allowing the programmer to terminate a string with any byte or none at all. glm94 2022-10-08 16:35:05 -05:00
  • 8b6edc39be Updated the Parser to handle the variable declaration directive. glm94 2022-10-08 16:15:10 -05:00
  • c142d2c6d0 Cleaned up the Symbol struct and updated code accordingly. glm94 2022-10-08 14:43:00 -05:00
  • 4b08707e67 Cleaned up the list implementation so as to NOT copy items into a new buffer. glm94 2022-10-07 20:46:55 +00:00
  • 307519a2b1 Updated parser. parser glm94 2022-10-06 22:08:33 -05:00
  • d3d2b06dbd Redesigning the way the Symbol's represent string declaration (the .db msg 'Hello World' type of declarations). glm94 2022-10-06 21:33:29 -05:00
  • bdb4d2b241 Updated the way Instructions keep track of symbols. Only their name is important but we need the Symbols to be able to track which Instruction they point to (if they do that is, i.e. a label symbol). glm94 2022-10-06 21:11:22 -05:00
  • d53833c25f Added some debug print out for the instruction list and a helper function to get a string for any Registers enum. glm94 2022-10-06 21:05:57 +00:00
  • f38da9cc74 A bit of cleanup. glm94 2022-10-04 21:05:15 +00:00
  • 33309a2759 Updated the Instruction's structure and updated the Parser accordingly. glm94 2022-10-04 20:37:47 +00:00
  • 1f7989533b Fixed a bug in the SymbolsTable where it wouldn't update its size. glm94 2022-10-03 20:11:04 -05:00
  • cd1258a724 Fixed various Parser bugs. glm94 2022-10-03 19:58:44 -05:00
  • be91e3c112 Updated the parser to better handle parameters, sort of and including a string length assembly program to use as a test for the whole assembler. glm94 2022-10-03 21:26:28 +00:00
  • 706f480e31 The Scanner will now check for empty lines (is the previous token and the current token a new line?) and simply not emit a NewLine Token. glm94 2022-10-03 19:40:00 +00:00
  • a949007c75 Updated the ISA so the program will correctly see things like 'load', 'inc' and 'dec'. glm94 2022-10-03 16:56:39 +00:00
  • a0d5d62a34 Fixed a bug in the Scanner when parsing a hex number, still not super robust but it'll work. glm94 2022-10-03 15:20:31 +00:00
  • f7cd87f13f Started reworking the Parser to simplify how instructions will be represented. It will act like a 'first pass' that will do grammar checks but not verify the parameters of the opcodes. glm94 2022-10-02 22:54:18 -05:00
  • 55f4c32764 Missed this for the Scanner fix. glm94 2022-10-02 22:12:16 -05:00
  • 097eca383b Fixed a bug with the Scanner adding a blank line via a single NewLine Token when a file starts with a block of comments. glm94 2022-10-01 20:43:55 -05:00
  • 984683bfc5 Minor adjustment to Figure 1.1 glm94 2022-09-29 22:57:12 -05:00
  • 0f42ad2997 Updated the ISA and added links in the table of contents. glm94 2022-09-29 22:11:19 -05:00
  • 63438b551b Got the scanner running again. Seems to be picking up punctuation, labels, identifiers and strings as expected. glm94 2022-09-29 21:32:08 -05:00
  • e94e486e18 More refinements to the loading data instructions. I am truly bad at this whole thing... glm94 2022-09-29 20:42:37 +00:00
  • 2b71ac05a0 Added a note about a proposal regarding assembly language design. glm94 2022-09-27 17:46:50 +00:00
  • 02cf72902e Updated the load instructions. glm94 2022-09-26 22:13:48 -05:00
  • afa84076c8 Added a command to make generating an opcode table a one liner. Updated the ISA. glm94 2022-09-23 19:36:27 +00:00
  • 925f7703d6 Updated the ISA, hopefully I can get this all put together in a thought out way. glm94 2022-09-22 20:49:20 +00:00
  • a82a4c23ad Updated the docs. glm94 2022-09-21 21:44:38 -05:00
  • f5c82d1c36 Added a LaTex document to put in writing how the machine should behave. glm94 2022-09-21 16:23:11 +00:00
  • 0b58e0124f Some refactoring to update everything to use the new structures and some new considerations for how Symbols and Instructions shoudl be represented. glm94 2022-09-15 22:14:38 -05:00
  • 2ae60a607c Incomplete, but I want to make sure the ideas I have here don't get wiped. Sadly this commit won't compile. glm94 2022-09-15 21:29:27 +00:00
  • 6d17dffcdf Added a SymbolTable object (untested at the moment) and redefined the Symbol object. I think when a Symbol is made only the size of it should matter to the code that will assemble the final binary. glm94 2022-09-08 20:56:02 +00:00
  • 2518214585 Added a length attribute to the symbol. glm94 2022-09-06 14:15:45 +00:00
  • 7004fff659 This feels like a trainwreck but eh. Changed the way the opcodes are managed. Hopefully this is the right direction when I add support for multiple ASM files. glm94 2022-09-01 18:46:59 +00:00
  • 13f8ff194b Smoothbrain indeed... glm94 2022-08-30 22:48:49 -05:00
  • dac01ffd0c Changed the TokenClass from opcode to nomic, a less smoothbrain name IMO and also frees up Opcode for a better use later on. glm94 2022-08-30 22:06:50 -05:00
  • 3c7056c5e6 The main function will now write out the output of the parser. glm94 2022-08-29 21:23:02 +00:00
  • 6c7b8d5356 Fixed a bug where CMP REG, REG wouldn't get encoded and a disassembler bug related to said CMP bug. glm94 2022-08-29 19:29:34 +00:00
  • 5f437b6869 Both the assembler and the disassembler should now support all the instructions I've layed out thus far. glm94 2022-08-29 18:51:48 +00:00
  • e3b4293314 Fixed a bug in the parser where the size of the binary was too big. glm94 2022-08-29 18:02:11 +00:00
  • ae1e73e00f Fixed a bug to correct the location of symbols in the heap. glm94 2022-08-29 16:00:02 +00:00
  • 7385a807a5 Created a basic binary format to help guide the disassembler. glm94 2022-08-29 15:57:14 +00:00
  • 0d3f8a460e Added more instructions for the parser to emit and refactored the code in doing so. glm94 2022-08-28 15:37:56 -05:00
  • c2111e2b88 Added support for the ADD and SUB opcodes to the disassembler. glm94 2022-08-28 13:08:18 -05:00
  • 8e9d1aefe8 Fixed some disassembler issues. At least some instuctions are being disassembled correctly. glm94 2022-08-26 21:43:03 -05:00
  • 0785f21805 Added a disassembler which is still very buggy. Also fixed some bugs with the opcode mask getting function. glm94 2022-08-26 21:41:02 +00:00
  • e4a191a17e Refined the encoding some more. glm94 2022-08-26 19:00:37 +00:00
  • eb5e2c506e Got the start of encoding opcodes. glm94 2022-08-26 18:27:41 +00:00
  • 0d060248cb Forgot about the bloody IN instruction... glm94 2022-08-25 21:01:35 -05:00
  • 80bea6f1a8 I'm dumb, fixed the CMP opcode overlap.. glm94 2022-08-25 20:57:33 -05:00
  • a96f485da6 I believe I have the bit patterns for my opcodes worked out. glm94 2022-08-25 20:45:46 -05:00
  • 88d550f344 Added unconditional jump opcode to my comment section. glm94 2022-08-25 20:27:25 -05:00
  • 0e53f9798f Added a distinction between constant numbers and what are effectively memory addresses (i.e. strings and labels). glm94 2022-08-25 19:47:16 -05:00
  • 03d5660677 Seems I fixed the memory offset bugs, so far anyway... glm94 2022-08-25 19:54:47 +00:00
  • 4f6d5f652e Made use of the Symbols Table, and started the proccess of determining the memory location of opcodes and variables. glm94 2022-08-25 19:06:05 +00:00
  • 64326937b1 Added a LineEnd token type. glm94 2022-08-25 18:37:25 +00:00
  • 89ab951c6a Refactored the parsing code just a touch. glm94 2022-08-24 21:23:14 +00:00
  • 947de1d14c Added support for declaring a variable with the '.db' directive. Address calculations still need to be done, but at the very least the variable's name is showing up in the symbols table. glm94 2022-05-16 15:17:19 +00:00
  • 3c4cce0883 Added assembler directives as a class of token. glm94 2022-05-16 14:27:49 +00:00
  • 5265666178 Got the Parser to, so far, correctly (minus memory leaks) parse out and report errors with opcodes and their parameters. glm94 2022-05-12 23:16:02 -05:00
  • 2de3538d80 Parser is now mostly setup for the 'peek and advance' pattern. Still having infinite loop issues somewhere though. glm94 2022-05-12 21:30:02 +00:00
  • 72525959f6 Reworked the tokens to include a broad class to make parameter matching a bit easier, and removed the hexadecimal distinction. glm94 2022-05-12 20:26:14 +00:00
  • 72abf6c4ab Started work on rewriting the Parser. glm94 2022-05-10 21:03:09 +00:00