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This project contains a number of tools and libraries for emulating the Motorola 68000 chipset; used in devices like the Apple Macintosh, Sega Megadrive and Commodore Amiga.
WARNING This project is an incomplete work in progress.
The goal of this project is less about performance or competing with existing emulators. It's more about enabling a better development and learning experience for novices like me.
$ go get github.com/cavaliercoder/go-m68k/...
Compile the following Motorola 68000 assembly using a supported compiler:
* Test 68000 simulator program
WRCHAR EQU 6 Trap # for write D1.B char to screen
ORG 1000ドル
LEA MESSAGE(PC),A0 Point A0 to start of message
NEXT MOVE.B (A0)+,D1 Get character, increment pointer
BEQ.S FINISH Exit if end
MOVE.B #WRCHAR,D0 Set up trap to write to screen
TRAP #15 Write char. to screen
BRA.S NEXT ..and loop back
FINISH STOP #2700ドル Halt
MESSAGE DC.B 'Hello world!',0ドルD,0ドルA,0
END 1000ドル
Run the program:
$ m68k hello-world.h68
Hello world!