 glm94
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9e178ca3da
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Build a quick draft of how the symbol value should be computed.
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2023-08-25 01:27:22 -05:00 |
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glm94
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82b2136a69
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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.
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2023-08-25 00:21:19 -05:00 |
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glm94
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4af2527806
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Updated the structure of symbols and tokens to hopefully help make computing symbol values easier.
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2023-08-07 01:18:01 -05:00 |
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glm94
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65383cded2
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Updated the way symbols are represented and how they are marked as resolved.
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2023-07-09 22:04:55 -05:00 |
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glm94
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9c8fe17c8f
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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.
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2023-07-06 19:39:03 -05:00 |
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glm94
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3031fa8b9b
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Code cleanup.
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2023-06-29 20:53:39 -05:00 |
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glm94
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0eaa5527ea
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Updated the parser to be able to handle the changes made to the ISA.
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2023-06-18 00:50:18 -05:00 |
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glm94
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403439def4
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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.
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2023-06-17 21:15:08 -05:00 |
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glm94
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288ba9f9cb
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Updated the docs to include new jump operands and setup the assembler to handle parsing all the jump instructions.
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2023-03-29 22:30:12 -05:00 |
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glm94
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95ed2143ea
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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.
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2023-03-24 23:24:24 -05:00 |
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glm94
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4230708f15
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Added a function to remove an item from the generic list, which is mainly used for the tokens.
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2023-03-07 21:31:14 -06:00 |
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glm94
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5e9e1bdec4
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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.
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2023-03-06 21:51:36 -06:00 |
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glm94
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1b246e90bc
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Started rethinking how this machine should behave. Updated and refactoring some things with a few new ideas.
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2023-02-23 22:22:07 -06:00 |
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glm94
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9a602824b6
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Added all the instructions supported to a structure to help make validation of parameters easier.
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2022-10-18 21:14:50 -05:00 |
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glm94
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fd44e03b1b
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Updated the Parser to try and give 'AddressParameter's more meaning depending on the SymbolType.
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2022-10-08 18:21:11 -05:00 |
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glm94
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48a77950be
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Updated the way string symbols are handled, allowing the programmer to terminate a string with any byte or none at all.
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2022-10-08 16:35:05 -05:00 |
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glm94
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c142d2c6d0
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Cleaned up the Symbol struct and updated code accordingly.
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2022-10-08 14:43:00 -05:00 |
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glm94
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4b08707e67
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Cleaned up the list implementation so as to NOT copy items into a new buffer.
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2022-10-07 20:46:55 +00:00 |
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glm94
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bdb4d2b241
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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).
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2022-10-06 21:11:22 -05:00 |
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glm94
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d53833c25f
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Added some debug print out for the instruction list and a helper function to get a string for any Registers enum.
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2022-10-06 21:05:57 +00:00 |
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glm94
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f38da9cc74
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A bit of cleanup.
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2022-10-04 21:05:15 +00:00 |
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glm94
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33309a2759
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Updated the Instruction's structure and updated the Parser accordingly.
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2022-10-04 20:37:47 +00:00 |
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glm94
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be91e3c112
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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.
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2022-10-03 21:26:28 +00:00 |
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glm94
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a949007c75
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Updated the ISA so the program will correctly see things like 'load', 'inc' and 'dec'.
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2022-10-03 16:56:39 +00:00 |
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glm94
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f7cd87f13f
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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.
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2022-10-02 22:54:18 -05:00 |
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glm94
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55f4c32764
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Missed this for the Scanner fix.
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2022-10-02 22:12:16 -05:00 |
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glm94
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0b58e0124f
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Some refactoring to update everything to use the new structures and some new considerations for how Symbols and Instructions shoudl be represented.
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2022-09-15 22:14:38 -05:00 |
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glm94
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2ae60a607c
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Incomplete, but I want to make sure the ideas I have here don't get wiped. Sadly this commit won't compile.
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2022-09-15 21:29:27 +00:00 |
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glm94
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6d17dffcdf
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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.
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2022-09-08 20:56:02 +00:00 |
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glm94
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2518214585
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Added a length attribute to the symbol.
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2022-09-06 14:15:45 +00:00 |
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glm94
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7004fff659
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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.
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2022-09-01 18:46:59 +00:00 |
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glm94
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13f8ff194b
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Smoothbrain indeed...
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2022-08-30 22:48:49 -05:00 |
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glm94
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dac01ffd0c
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Changed the TokenClass from opcode to nomic, a less smoothbrain name IMO and also frees up Opcode for a better use later on.
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2022-08-30 22:06:50 -05:00 |
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glm94
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5f437b6869
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Both the assembler and the disassembler should now support all the instructions I've layed out thus far.
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2022-08-29 18:51:48 +00:00 |
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glm94
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0d3f8a460e
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Added more instructions for the parser to emit and refactored the code in doing so.
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2022-08-28 15:37:56 -05:00 |
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glm94
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0785f21805
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Added a disassembler which is still very buggy. Also fixed some bugs with the opcode mask getting function.
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2022-08-26 21:41:02 +00:00 |
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glm94
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eb5e2c506e
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Got the start of encoding opcodes.
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2022-08-26 18:27:41 +00:00 |
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glm94
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0e53f9798f
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Added a distinction between constant numbers and what are effectively memory addresses (i.e. strings and labels).
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2022-08-25 19:47:16 -05:00 |
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glm94
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64326937b1
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Added a LineEnd token type.
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2022-08-25 18:37:25 +00:00 |
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glm94
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3c4cce0883
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Added assembler directives as a class of token.
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2022-05-16 14:27:49 +00:00 |
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glm94
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2de3538d80
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Parser is now mostly setup for the 'peek and advance' pattern. Still having infinite loop issues somewhere though.
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2022-05-12 21:30:02 +00:00 |
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glm94
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72525959f6
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Reworked the tokens to include a broad class to make parameter matching a bit easier, and removed the hexadecimal distinction.
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2022-05-12 20:26:14 +00:00 |
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glm94
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72abf6c4ab
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Started work on rewriting the Parser.
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2022-05-10 21:03:09 +00:00 |
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glm94
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fbef044905
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Added some simple symbol handling to the Parser.
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2022-05-06 18:55:22 +00:00 |
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glm94
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8ec0b9b216
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Code cleanup. Converting a number lexeme to a proper integer setup but not done yet. So number tokens don't have a valid value.
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2022-05-05 16:12:33 +00:00 |
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glm94
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9fa48520c7
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Added support for 'labels' in the Scanner.
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2022-05-04 22:58:06 -05:00 |
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glm94
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859035da2a
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Updated the scanner to parse registers, assembly keywords and identifiers.
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2022-05-04 20:07:47 +00:00 |
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glm94
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2c9478d311
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Attempting to declutter the lexer and tokenizer by rereolling them into the 'Scanner' object.
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2022-05-03 21:20:38 +00:00 |
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glm94
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1900b504e7
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Setup the assembler to use the new file reading code.
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2022-04-28 22:24:10 -05:00 |
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glm94
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1968590654
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Add a file utility to allow me to read in an entire file instead of doing so line by line.
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2022-02-23 21:29:53 +00:00 |
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