I want convert piece of code from CP/M file of "Byte01" computer to working in clone ZX Spectrum "Byte" BASIC. Program WW.COM after run in CP/M OS print on screen image and play music. I found image in WW.COM code in offset 2404. Sound data is probably in offset 1FB5 - 2403. Need help to disassemble code. I want to get something like in attach video file (AKDI.zip)
AKDI.zip
I try debug this file in CP/M 80 Emu with DDT.COM debugger:
Код:
D:\cpmemu>cpm z80 ddt ww.cpm
CP/M-86 emulator for DOS vers 1.3 - 11/30/97
Copyright (c) 1985, 1997 Jim Lopushinsky
Z80 CP/M-80 emulator for CP/M-86 vers 1.3 - 11/30/97
Copyright (c) 1985-1997 Jim Lopushinsky
DDT VERS 2.2
NEXT PC
4100 0100
-l
0100 JMP 1140
0103 NOP
0104 LDAX D
0105 MOV M,A
0106 INX D
0107 INX H
0108 DCR B
0109 JNZ 0104
010C RET
010D MVI C,00
010F MOV M,C