n loewen
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16f85d3b9f
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(tests) flag-overflow-2 - Fix: comment out date
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2023-09-02 13:39:47 -04:00 |
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n loewen
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c84c86c160
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cpu - Fix overflow flag!
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2023-08-29 21:28:39 -04:00 |
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n loewen
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2d210303e6
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(tests) WIP - Create a rough, partial sketch for an implementation of Conway's Game of Life
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2023-08-28 15:31:57 -04:00 |
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n loewen
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97e54d01cb
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(tests) move-pixel-with-keypad - Change keys to match new mapping / WASD
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2023-08-26 16:45:14 -04:00 |
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n loewen
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872489c18d
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tests - Remove commented-out line
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2023-08-26 14:58:29 +01:00 |
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n loewen
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ac0fccf2e9
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tests - finish WIP - Make a 'move a pixel with the keypad' program
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2023-08-26 14:56:01 +01:00 |
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n loewen
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9f68bd3027
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tests - WIP - Create 'move pixel with keypad' program
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2023-08-26 14:35:49 +01:00 |
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n loewen
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902b218547
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(tests) - draw-xy - Change selected pixel to (3, 3)
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2023-08-25 11:06:34 +01:00 |
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n loewen
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f612e7582a
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tests - Create routine for plotting a pixel at an (x, y) coordinate
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2023-08-24 17:03:51 +01:00 |
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n loewen
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ee1e899108
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(tests) fill-display - Fix typo / Change constant names to increase clarity and make it easier to update if the flag IDs change again
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2023-08-23 21:22:16 +01:00 |
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n loewen
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5f29c7c3eb
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cpu - Change flags from NZOC to ONZC
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2023-08-23 15:30:06 +01:00 |
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n loewen
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4481fc10d4
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assembler - WIP - Start adding a 'set the initial IP to assembler to' feature + Start adding a 'return debug data as well as machine code' feature
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2023-08-21 16:08:58 +01:00 |
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n loewen
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97f1d02912
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tests - Fix fill-display program: use new assembly syntax
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2023-08-21 14:40:58 +01:00 |
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n loewen
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eaa0597552
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Merge branch '5x5-display'
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2023-08-21 14:38:02 +01:00 |
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n loewen
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5e1cf9e413
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assembler - Change label for program counter from `*addr` to `*`
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2023-08-21 12:30:31 +01:00 |
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n loewen
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501910b17f
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Feature: Keypad simulation!
Refactor: Tidy up constants use for machine configuration
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2023-08-16 16:23:59 +01:00 |
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n loewen
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3fd862a55d
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! Refactor (assembler): Chance constant prefix from '=' to '#'
'=' could be confusing when referencing a constant, since it looks like assignment
'#' is hopefully clearer (by analog to #hashtags)
Breaking change!
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2023-08-16 09:35:37 +01:00 |
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n loewen
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9fefa0916a
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Feature (assembler): Allow assigning `*ADDR` to a constant
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2023-08-16 09:29:27 +01:00 |
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n loewen
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8f9f50e28c
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Update sketch to suggest use of `*ADDR`
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2023-08-15 21:31:35 +01:00 |
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n loewen
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4e01a0943c
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Feature: Add `*ADDR` assembly operation (`*ADDR`, used as an operand, is replaced with the memory address where the current line will be stored after assembly)
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2023-08-15 21:29:28 +01:00 |
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n loewen
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190592813d
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Merge branch 'main' into 5x5-display
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2023-08-15 20:58:38 +01:00 |
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n loewen
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5c41369ecd
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Add sketches/notes re: subroutines and a call stack
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2023-08-15 20:58:05 +01:00 |
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n loewen
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2cceaa71f2
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Refactor: Rewrite fill-display:
- make more use of constants
- improve comments
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2023-08-15 20:53:51 +01:00 |
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n loewen
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c415056194
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! Feature: Change to a 5x5 display [breaking change]
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2023-08-15 16:59:12 +01:00 |
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n loewen
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3af5d66626
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Feature (simulator): Implement Negative, Zero, and Overflow flags
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2023-08-15 15:22:21 +01:00 |
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n loewen
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b1dc2a7c7e
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Feature: WIP: Replace CHP and CFC instructions with FHP and FTG (carry flag is implemented, other flags are not)
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2023-08-15 12:04:48 +01:00 |
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n loewen
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5fa20c3963
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Assembler: always add an END at the end of the output
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2023-08-03 15:53:59 +01:00 |
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n loewen
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d3134aa9e6
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Add constants to assembler
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2023-08-03 15:50:37 +01:00 |
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n loewen
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a0892109a6
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Implement NOP
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2023-08-03 15:05:50 +01:00 |
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n loewen
|
fdd63177f7
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Move display memory back to $00 to make programming easy
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2023-08-03 08:34:58 +01:00 |
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n loewen
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6883adcd71
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Fix/implement relocatable display memory
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2023-08-02 15:28:18 +01:00 |
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n loewen
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cb186b0f3b
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Create test program for ADD and SUB
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2023-08-02 15:09:35 +01:00 |
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n loewen
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29b6097585
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Track tests
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2023-08-01 15:51:59 +01:00 |