RECT1 ASM
OS EQU 0F003H
A1 EQU 0B782H
A2 EQU A1+2
A3 EQU A2+2
A4 EQU A3+2
FARB EQU 0B7D6H
DB 7FH,7FH,'RECT',1
LD A,7*8+1
LD (FARB),A
LD HL,(A4)
PUSH HL
LD HL,(A2)
LD (A4),HL
CALL OS
DB 3EH
LD HL,(A1)
EX (SP),HL
LD (A4),HL
LD HL,(A3)
LD (A1),HL
CALL OS
DB 3EH
LD HL,(A2)
EX (SP),HL
LD (A1),HL
LD HL,(A4)
LD (A2),HL
CALL OS
DB 3EH
POP HL
LD (A2),HL
LD HL,(A1)
LD (A3),HL
CALL OS
DB 3EH
RET
DB 7FH,7FH,'XRECT',1
;Sortieren
OR A
PUSH HL
SBC HL,BC
POP HL
JR C,SO1
LD (A3),HL
LD (A1),BC
SO1
LD HL,(A4)
OR A
PUSH HL
SBC HL,DE
POP HL
JR NC,SO2
LD (A2),HL
LD (A4),DE
SO2
LD HL,(A1)
LD A,L
ADD HL,HL
ADD HL,HL
ADD HL,HL
ADD HL,HL
ADD HL,HL
LD D,0FFH
AND 7
JR Z,SB1
SB2
SRL D
DEC A
JR NZ,SB2
SB1
LD C,H
LD HL,(A3)
LD A,L
ADD HL,HL
ADD HL,HL
ADD HL,HL
ADD HL,HL
ADD HL,HL
LD E,80H
AND 7
JR Z,SB3
SB4
SRA E
DEC A
JR NZ,SB4
SB3
LD L,C
LD A,H
SUB L
JR NZ,VG1
LD A,D
AND E
LD E,A ;AND-BM
XOR A
VG1
LD B,A
INC B
LOOP
LD A,(A2+1)
OR A
LD A,(A2)
LD H,A
CALL Z,WGL
PUSH HL
LD HL,(A2)
INC HL
LD (A2),HL
PUSH BC
LD BC,(A4)
OR A
SBC HL,BC
POP BC
POP HL
JR NZ,LOOP
RET
WGL ;Waagerechte Linie
;HL: log. Pixadr.
;E: Bits rechts
;D: Bits links
;B: Anzahl
PUSH HL
PUSH DE
PUSH BC
WG2
PUSH HL
PUSH DE
; CALL OS
; DB 34H
LD A,L
LD L,H
CP 28H
CCF
LD H,A
SET 7,H
POP DE
JR C,WG3
LD A,B ;=1?
DEC A
JR NZ,WG1
LD D,E
WG1
LD A,M
XOR D
LD M,A
WG3
LD D,0FFH ;Mittlere Pixel
POP HL
INC L ;Next Spalte
DJNZ WG2
POP BC
POP DE
POP HL
RET
Þ
WG3:Û
WG1:É
WG2:Æ
WGL:¦
LOOP:¤
VG1:›
SB3:–
SB4:†
SB1:�
SB2:r
SO2:a
SO1:Ö·
FARB:ˆ·
A4:†·
A3POP DE
POP HL
RET
Þ
WG3:Û
WG1:É
WG2:Æ
WGL:¦
LOOP:¤
VG1:›
SB3:–
SB4:†
SB1:�
SB2:r
SO2:a
SO1:Ö·
FARB:ˆ·
A4:†·
A3
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