two pass encoding and resizing references #22

Merged

omicron merged 6 commits from encoding_start into main 2025-04-24 13:05:47 +00:00

Conversation 0 Commits 6 Files Changed 9

+506 -105

6 Commits

Author	SHA1	Message	Date
omicron	7cefc3564d	Implement one immediate label reference operand ... Also adds opcode data for jmp and call	2025-04-24 14:45:57 +02:00
omicron	c848995ad6	Implement two pass encoding ... First pass: - collect information for numbers, registers and which instructions contain label references - encode all instructions that don't contain label references - Set (temporary) addresses for each instruction Second pass: - Collect information about label references (address, offset, size) - encode all instructions that contain label references - Update (if necessary) addresses for each instruction The second pass is iterated 10 times or until no instructions change size, whichever comes first.	2025-04-24 14:45:46 +02:00
omicron	5272fdb227	Add more values to the ast to facilitate encoding ... - Add a instruction value that contains the encoding, the address and a flag to indicate if this instruction contains label references - Add label value that contains an address - Add reference value that contains offset, an absolute address and an operand size - define types for all value options in the union - define accessor functions for all the values in the union	2025-04-23 15:57:04 +02:00
omicron	0acc3f27f3	Update symbols tests for new API	2025-04-23 15:56:46 +02:00
omicron	9c6b69e187	Symbol table now keeps track of label statements ... Before it kept track of a more specific node that referenced the symbol in some way. Now it will only keep track of the actual label defining statements. This is done to facilitate encoding. The encoder can now go from a symbol name to the statement that defines the symbol. Restructure the encoder to deal with this and pass the correct statement to the symbol update function.	2025-04-18 14:00:08 +02:00
omicron	530e3fb423	Fix parse_memory_expression to use parse_label_reference	2025-04-17 23:28:44 +02:00