samssi / dasm-tutorial

dasm-tutorial

Prequisites

• dasm macro assembler: http://dasm-dillon.sourceforge.net/
• WinVice C64 emulator: http://vice-emu.sourceforge.net/
• TextEditor

Using dasm cross assember

Windows

Note: Powershell won't work with dasm! Use cmd instead!

Environment variables

Set following environment variables for ease of use to Windows path:

x:\dasm
x:\winvice-x.x-xxx

Compiling the assembly code

dasm <source_file>.asm -o<target_file>.prg

Running the compiled code on the WinVice emulator from command line

Starting and running the compiled program:

x64 <target_file>.prg

Starting the program on the C64 type in following command:

SYS <memory_location_where_the_program_should_start_in_decimal>

For example when using instruction org $1000 the 1000 is a hex number that converts into 4096 decimal. Point the C64 system here:

SYS 4096

Close the emulator when done!

Sources

• https://github.com/petriw/Commodore64Programming, PetriW, Commodore 64 Programming on Windows
• http://sta.c64.org/, The Joe Forster/STA homepage
  • http://sta.c64.org/cbm64mem.html, Commodore 64 memory map
• http://www.spritemate.com/, Online sprite creator for Commodore 64
• https://www.c64-wiki.com/, C64 Wiki