4-3.
: , ( , , , , , ).
:
;(R2)<--(24H)+(3EH)
MOV R1,#24H;(R1)<--24H
MOV A,@R1;(A)<--((R1))
MOV R1,#3EH;(R1)<--3EH
ADD A,@R1;(A)<--(A)+((R1))
MOV R2,A;(R2)<--(A)
END
:
: , .
5-4.
: , .
:
;(00)-(3F)<--00H
CLR A
MOV R0,#3FH
M1: MOV @R0,A
DJNZ R0,M1
END
:
: , .
5-7.
: , .
:
;(20H)-(2FH)<-(20H)-(2FH)+(30H)-(3FH)
MOV R7,#10H;
MOV R0,#2FH;
MOV R1,#3FH;
M1:MOV A,@R0;
ADD A,@R1;
MOV @R0,A;
DEC R0;
DEC R1;
DJNZ R7,M1;
END
:
: , .
6-4.
: , .
:
; (F1)=0- B0 (2FH)
; (F1)=1- B7 (2FH)
MOV R0,#2FH;
MOV A,@R0;
JF1 M1;
; B0
XRL A,#01H;
JMP M2;
; B7
M1:XRL A,#80H;
M2:MOV @R0,A;
END
:
: , .
7-1.
: , .
:
;(R6)<--(R5)-(R4)
MOV A,R4;
CPL A;
INC A;
ADD A,R5;
MOV R6,A;
NOP;
MOV R0,#3AH;
MOV A,@R0;
CPL A;
INC R0;
ADD A,@R0;
CPL A;
MOV R0,#39H;
MOV @R0,A;
END
:
: , .
9-1.
: , .
:
;(R7,R6,R5)<--((R0+2),(R0+1))*((R0))
; (R7,R6,R5)- .
;(R0)=29H
;
CPL A;
MOV R7,A; R7
MOV R6,A; R6
MOV R5,A; R5
MOV R1,#08H; 8
MOV R0,#29H;
;
MOV A,@R0;
;
0: CLR C;
XCH A,R5; R5
RLC A;
XCH A,R5; ()
XCH A,R6; R6
RLC A;
XCH A,R6; ()
XCH A,R7; R7
RLC A;
XCH A,R7; ()
;
|
|
|
RLC A;
JNC M1; ()=0 -
;
CPL ;
INC R0; - .
XCH A,R5; .
ADD A,@R0; . , ()
XCH A,R5; R5
INC R0; - .
XCH A,R6; .
ADD A,@R0; . , ()
XCH A,R6; () R6
INC R0; -
XCH A,R7; .
ADD A,#00H; B (C)
XCH A,R7; (), R7
DEC R0;
DEC R0; -
DEC R0;
1: DJNZ R1,M0;
END
