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KrNews #05
24 июля 1998 |
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Coder - The exchange of the two memory areas.
2) This procedure though not the
fast (still faster than the ZX
Revue, but the most simple. In the HL set
first address in DE - second in the BC -
length.
EXCH LD HL, SOURCE1
LD DE, SOURCE2
LD BC, LEN
EXC1 LD A, (DE)
LDI
DEC HL
LD (HL), A
INC HL
JP PE, EXC1
RET
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