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<root>­/­parties­/­2023­/­vccc23­/­christmas-diamonds/logonsystem_cpc_assembler_vc3-2023.zip

File size:
288 049 bytes (281.30K)
File date:
2024-01-03 14:15:18
Download count:
all-time: 14

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  • file_id.diz 699B
  • logxmas.asm 1.21K
  • LOGXMAS.BIN 156B
  • logxmas.dsk 190.25K
  • LOGXMAS.jpg 66.04K
  • logxmas_code.png 237.85K

file_id.diz

LOGXMAS.BIN

Author:   Logon System
Category: Christmas Challenge
System:   Amstrad CPC
Language: Z80 Assembly (using CPC Firmware)
Len source code: 1236 bytes
Len exe file:     28 bytes
Len code only:    28 bytes

Instructions:
Insert logxmas.dsk
Type RUN"logxmas

Description:
First trick is about z80 registers which are preloaded and fixed
when an executable is launched by a genuine RUN"program.bin
Second trick is about system call to locate x,y on text screen :
input registers H and L are updated (decremented -1) at output

Comments:
This is a coop work ! and we did it ! :D Working together is the key. 
We got a better result than in our 2 own personal challenges.