n loewen
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dab111b6ad
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Rename `byteCursor` to `IP` + update debugging setup
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2023-08-01 15:38:31 +01:00 |
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n loewen
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f7c2203450
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Create a memory-mapped-display visualizer that is separate from the CPU debugging printout
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2023-08-01 15:36:05 +01:00 |
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n loewen
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3748e7af24
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Include display in debugging printout (missed a line in the last commit)
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2023-08-01 15:34:44 +01:00 |
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n loewen
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f42a81c9b2
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Include display in debugging printout
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2023-08-01 15:34:00 +01:00 |
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n loewen
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d74b6594be
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Make debugging less verbose
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2023-08-01 15:33:18 +01:00 |
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n loewen
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24767d1899
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Increase cycle limit
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2023-08-01 15:31:52 +01:00 |
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n loewen
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5f79c981b2
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Correct off-by-one error in memory map
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2023-08-01 15:30:57 +01:00 |
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n loewen
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55d4885889
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Pretty print machine code table
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2023-08-01 13:31:35 +01:00 |
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n loewen
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7813aaf56c
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Change debug level for memory-before-labelling table
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2023-08-01 13:31:13 +01:00 |
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n loewen
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da0ababc59
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Initialize instruction pointer based on a constant, to move it after screen memory
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2023-08-01 13:30:48 +01:00 |
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n loewen
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36e013b866
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Combine Memory-Map and Peripherals sections
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2023-08-01 13:05:51 +01:00 |
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n loewen
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e75049551f
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Print memory tables in hex
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2023-08-01 12:57:30 +01:00 |
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n loewen
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fa3ade15dd
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Remove blank line
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2023-08-01 12:56:44 +01:00 |
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n loewen
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0834516c6b
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Tidy up debugging / print statements
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2023-08-01 12:56:31 +01:00 |
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n loewen
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b16f6927ee
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Fix bug where referencing a label re-sets the pointer to the label address
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2023-08-01 12:02:27 +01:00 |
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n loewen
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34e86cd4f8
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Move cycle limit to a constant
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2023-08-01 12:01:50 +01:00 |
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n loewen
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d0a6ca886b
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Pretty-print "Running at ..." header
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2023-08-01 12:00:20 +01:00 |
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n loewen
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a41a1671fc
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Update TODO list
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2023-08-01 11:40:46 +01:00 |
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n loewen
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321d8d1264
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Create utility script for pretty-printing memory
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2023-08-01 11:39:10 +01:00 |
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n loewen
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36df142538
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Create script for running assembler on its own
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2023-08-01 11:38:45 +01:00 |
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n loewen
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828a9f5909
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Add @label handling to assembler
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2023-08-01 11:38:24 +01:00 |
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n loewen
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afecab8ce3
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Allow for blank lines and comment-only lines in assembly code
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2023-07-31 15:21:01 +01:00 |
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n loewen
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b90300a257
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Add assemble-and-run script
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2023-07-31 14:46:25 +01:00 |
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n loewen
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3dc521714f
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Update file names
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2023-07-31 14:41:23 +01:00 |
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n loewen
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7bb802b18c
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Update todo list
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2023-07-26 15:06:59 +01:00 |
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n loewen
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c7cfd13931
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Update todo list
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2023-07-26 15:06:49 +01:00 |
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n loewen
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5717b93eda
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Create entry point for assembling and then running assembly code from a text file
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2023-07-26 15:06:11 +01:00 |
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n loewen
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d52ea2e467
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Rename
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2023-07-26 15:04:19 +01:00 |
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n loewen
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75b6916666
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Create a version of the CPU as a JS module -- otherwise the same as the previous version
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2023-07-26 15:03:23 +01:00 |
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n loewen
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ba35470c3c
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Make assembler a javascript module, remove code for working over stdio
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2023-07-26 15:02:21 +01:00 |
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n loewen
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9797b2e25f
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Rename menonic-to-machine-operation lookup table
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2023-07-26 14:39:35 +01:00 |
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n loewen
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959697cd70
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Tidy up whitespace
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2023-07-26 14:38:29 +01:00 |
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n loewen
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74c7f3a657
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Create a simple assembler
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2023-07-26 14:38:02 +01:00 |
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n loewen
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62fd07fcaa
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Fix bug where hex2num and num2hex don't actually return anything
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2023-07-26 13:52:46 +01:00 |
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n loewen
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10ada984e6
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Implement and test remaining instructions
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2023-07-26 12:09:11 +01:00 |
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n loewen
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a17b7f4ba9
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Start a new simulator sketch with a better architecture + using a Uint8Array for memory
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2023-07-26 11:41:11 +01:00 |
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n loewen
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3eaced0e5d
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Move to "sketches" directory
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2023-07-26 09:46:03 +01:00 |
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n loewen
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70c00b4869
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Remove "implement CCF and CHP" todo-item
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2023-07-25 19:06:20 +01:00 |
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n loewen
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d33bc66d18
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Remove an instruction that was struck-out, because strikethrough doesn't work in the indented code block
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2023-07-25 19:04:29 +01:00 |
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n loewen
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a2b4d6e4ad
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After running, print a snapshot of memory as it was before running, as well as a snapshot of the final memory state. Also: refactor `log_memory()` into a more generic `log_table_with_title()`
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2023-07-25 19:03:47 +01:00 |
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n loewen
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ae7be9e357
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Print header with timestamp when running
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2023-07-25 19:01:27 +01:00 |
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n loewen
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d1a84748fc
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Implement CCF (Clear Carry Flag) and CHP (Carry Hop)
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2023-07-25 19:00:34 +01:00 |
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n loewen
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890bb16145
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Fix bug in addition
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2023-07-25 18:57:35 +01:00 |
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n loewen
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27a192bcdf
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Tidy up formatting
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2023-07-25 17:41:26 +01:00 |
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n loewen
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9fe17b801f
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Add TODOs
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2023-07-25 15:59:57 +01:00 |
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n loewen
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63637dac2f
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Implement HOP and JMP
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2023-07-25 15:57:24 +01:00 |
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n loewen
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39b7e9e2ac
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Add intro message/warning
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2023-07-25 15:33:24 +01:00 |
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n loewen
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9aed9e5e8b
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Tidy up formatting + re-order code for clarity
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2023-07-25 15:29:36 +01:00 |
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n loewen
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d674394afb
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Replace 'Carry Toggle' instruction with 'Clear Carry Flag'
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2023-07-25 15:26:58 +01:00 |
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n loewen
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dfd9edf879
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Partial implementation of ADD and SUB (SUB is missing carry flag handling
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2023-07-25 15:26:32 +01:00 |