Christmas Diamonds by Logon System
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.
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