The Little Computer Assembler

Input code into the left box. Then click "Assemble Code". The Result pane will show the output after you run the assembler. If all goes well, you will see your final code output after a line like this: "--------------------". You can then use the "Try Code in Little Computer" button to try running the program in a Little Computer.
There is an assembly language reference at the bottom of the page. See here for more information about writing Little Computer Assembly.

Instruction Guide:

Assembly	Machine Code	Instruction	Note
HLT	000	Halt
ADD	1XX	Add location XX
SUB	2XX	Subtract location XX
STA	3XX	Store to XX	STore Accumulator
LDA	5XX	Load from XX	LoaD Accumulator
BRA	6XX	Branch always to XX	BRanch Always
BRZ	7XX	Branch to XX if ACC equals 0	BRanch if Zero
BRP	8XX	Branch to XX if ACC >= 0	BRanch if Positive
INP	901	Get input
OUT	902	Output
DAT			Used to say "store data here". Examples: X DAT : "Make this location be called X, leave it blank to store data. Y DAT 5 : "Make this location be called Y, Start it with value 5.

XX indicates a two-digit memory address