|
ZX Review #5-6
04 ноября 1997 |
|
Studies - The procedure for turning the symbol 90 degrees clockwise.
(C) S. Mealing, Tatarstan, Bugulma
The procedure for turning a character on
90 degrees clockwise
This procedure I did for
his editor character set.
140.
LD HL, ADR; Address Sim, an ox, which is necessary to
turn
LD IX, OBL
PUSH HL
PUSH IX
LD B, 8
LP LD (IX +0), 0
INC IX
DJNZ LP
POP IX
LD B, 8
LP1 PUSH BC
PUSH IX
LD B, 8
LD A, (HL)
LP2 RLCA
PUSH AF
AND 1
OR (IX +0)
RRCA
LD (IX +0), A
INC IX
POP AF
DJNZ LP2
POP IX
POP BC
INC HL
DJNZ LP1
PUSH IX
POP HL
POP DE
LD BC, 8
LDIR
RET
OBL DEFB 0,0,0,0
DEFB 0,0,0,0
2
*
Other articles:
Similar articles:
В этот день... 1 April
Info Guide #13,
ACNews #50,
Avro News #01,
ACNews #47,
ACNews #40,
ACNews #29,
Black Metall #01,
ACNews #16,
Adventurer #13,
Polesse #19,
Subliminal Extacy #03,
ZX Pilot #37,
Always #03,
Born Dead #0G,
Odyssey paper #08,
Optron #26,
City #08,
Zodiac #02,
Polesse #05,
Nicron #108,
X-Magazine #10,
Nicron #82,
Energy #01,
Sorrow News #03,
Sorrow News #02,
Proton #27,
Think #08,
Wallpaper #01,
Spectrum Progress #03,
Spectrum Expert #02,
Micro #01,
X-Files #02,
Gorodok #05,
Deja Vu #04,
Anecdotes #01,
X-Files #02,
Maximum #35,
Impulse #01,
Spectrofun #01,
Faultless #07,
Breeze #06,
Nicron #27,
Echo #03,
Oberon #01,
Spectrofon #19,
On-Line #30,
Sinclair Town #01,
Sinclair Classic #04,
Spectrofon #04