Assembler-6502-AppleII

Assembler-6502-AppleII programming Compiler, Source code and Tutorial

Assembler-6502-AppleII programming is is an artificial language designed to express computations that can be performed by a machine, particularly a computer.

Compiler

Download Assembler-6502-AppleII programming compiler.

Source code

Assembler-6502-AppleII programming Hello world sample source code.

Assembler-6502-AppleII
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**********************************
* *
* HELLO WORLD FOR 6502 *
* APPLE ][, MERLIN ASSEMBLER *
* *
**********************************

STROUT EQU $DB3A ;OUTPUTS AY-POINTED NULL TERMINATED STRING
LDY #>HELLO
LDA # JMP STROUT

HELLO ASC "HELLO WORLD!",00

Tutorial

Assembler-6502-AppleII programming tutorial.

Long time since i uploaded any Retro Computing movies. I thought I had to see how easy (or complicated) it would be to write a simple 65xx assembler program for the Apple II. I'm used to the C64 and 6510 but since the CPU is basically the same in Apple ][ it should not be to hard. Using a very good Apple II emulator Virtual ][ and about an hour of time to dig up a disk image with an Assembler (Merlin) and some documentation describing the kernel routines of the old Apple I had my first program running. Going thru the Apple ]['s internals I can see that for it's time around1977 it was a great computer to program for. The C64 has ton's of more features when it comes to graphics and sound and therefore it's more fun to program on. But the C64 was produced in the 80's. However for all your Apple fanboys out there here is my first attempt to code anything at all on the old Apple ][ using the Merlin Assembler that seems being popular. Another alternative seems to be an assembler called LISA. I have some other C64 assembler samples that I will put up in the future when and if I have the time to produce some videos around it.