commit 514788463919af30d9539d7acf5cbbcca6a3485f
parent 06c57cb936c7a18ea6ea6738d1985cfc542182c8
Author: neauoire <aliceffekt@gmail.com>
Date: Mon, 1 Feb 2021 14:49:09 -0800
*
Diffstat:
| M | README.md | | | 33 | ++++++++++++++++----------------- |
1 file changed, 16 insertions(+), 17 deletions(-)
diff --git a/README.md b/README.md
@@ -10,32 +10,34 @@ cc uxn.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -o uxn
## Assembly Syntax
-- `:label`, a named offset
+- `:label`, a named address
- `+literal`, a numeric value
- `.pointer`, pointer to a label
```
-< comment >
+< conditionals >
-+01 < literal >
++03 +02 ADD
++05 EQU
-[ 01 02 03 04 ] < block of literals >
+.there JMQ
-$01 < pointer8 >
+:here
+ < when not equal >
+ +ee
+ BRK
-{ 01 02 03 04 } < block of pointer8 >
-
-~ff0f < pointer16 >
-
-( ff00 ff01 ff02 ff03 ) < block of pointer16 >
-
-=const +ff
-
-:label ADD RTS
+:there
+ < when is equal >
+ +ff
+ BRK
```
## Mission
+- constants
+- variables
+- A Three-Way Decision Routine(http://www.6502.org/tutorials/compare_instructions.html)
- Carry flag?
- Loop
- Pointers/Literals
@@ -44,9 +46,6 @@ $01 < pointer8 >
- Detect mouse click
- 16 bits addressing
- jumping to subroutine should be relative
-
-## TODOs
-
- Implement addressing
- Implement 16 bits operations
- Jumps should be relative
