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<root>­/­parties­/­2021­/­vintagecomputingchristmaschallenge21­/­challenge/geehaf_c64asm_vc3-2021.zip

File size:
65 826 bytes (64.28K)
File date:
2021-12-25 12:55:52
Download count:
all-time: 15

Preview

  • ASM3_6510_Output.JPG 49.26K
  • ASM3_TreeOutput.JPG 78.10K
  • ASM3Tree.asm 314B
  • ASM3Tree.prg 40B
  • file_id_ASM3Tree_README.txt 548B

file_id.diz

Date : 18/12/2021
Author : George Kirkham

System : Commodore C64
Language : 6510 Assembly

Length of source :  314 bytes
Length of executable : 38 bytes

Execution : To execute, drag and drop "ASM3Tree.prg" into a started up C64 VICE Emulator V3.5.

How it works : A loop reads in run lengths for the number of "*" to print on each row and also determines the start position based upon this length. It also uses a Kernal scroll screen routine to move the entire screen up a row to make space for the new row of the Christmas tree.