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7 的代码
7.2.3反正弦函数.txt
ASINX:
CJNE R4,#78H,$+3
JC DON6
MOV A,R5
RLC A
MOV 79H,C
ANL 0DH,#7FH
LCALL G1
LCALL FPCP
JZ AA
JC AA1
LJMP 0FFFFH
AA:
ACALL GHPI
ACALL EX
SJ
7.1.10浮点弧度数转换成浮点度数.txt
RTOD:
MOV R5,#6
MOV R6,#0E5H
MOV R7,#2FH
DR:
MOV A,@R0
MOV C,ACC.7
MOV 1FH,C
MOV C,ACC.6
MOV ACC.7,C
MOV R2,A
INC R0
MOV A,@R0
MOV R3,A
INC R0
MOV A,@R0
MOV R4,A
7.2.4反余弦函数.txt
ACOSX:
ORB 2FH,#8
SCALL ASIX
JBC 2FH,3,ACSRT
LCALL GHPI
AS3:
LCALL FPSUB
ACSRT:
ANDB 2FH,#0F7H
RET
ATANX:
CMPB 2CH,#9DH
JNH AT2
LDB 27H,2BH
LDB 2C
7.3.3以2为底的浮点指数函数.txt
FE2:
MOV A,@R0
MOV C,ACC.7
MOV 1FH,C
MOV C,ACC.6
MOV ACC.7,C
MOV R2,A
INC R0
MOV A,@R0
MOV R3,A
INC R0
MOV A,@R0
MOV R4,A
DEC R0
DEC R0
LCALL MUL1
CLR 1EH
MOV A,
7.2.5反正切函数.txt
FATN:
MOV A,@R0
MOV C,ACC.7
MOV 1DH,C
CLR ACC.7
MOV @R0,A
CLR 1CH
JB ACC.6,ATN1
JZ ATN1
SETB 1CH
LCALL FRCP
ATN1:
FPLN:
POP DPH
POP DPL
7.1.6浮点符号函数.txt
FLTSGN:
INC R0
MOV A,@R0
INC R0
ORL A,@R0
DEC R0
DEC R0
JNZ SGN
RET
SGN:
MOV A,@R0
RLC A
MOV A,#1
JNC SGN1
MOV A,#0FFH
SGN1:
RET
7.1.8浮点倒数函数.txt
FRCP:
MOV A,@R0
MOV C,ACC.7
MOV 1FH,C
MOV C,ACC.6
MOV ACC.7,C
MOV R5,A
INC R0
MOV A,@R0
MOV R6,A
INC R0
MOV A,@R0
MOV R7,A
DEC R0
DEC R0
ORL A,R6
JNZ RCP
slavr73b.asm
7.3. A LED键盘扫描综合程序
源程序: SLAVR73A.ASM
综合程序功能如下:
(1). 键盘扫描输入程序,0-F为16个数字键; 还有上档命令键,EXEC--执行键;
E2PROM--读键; SRAM--读写键; MON--返回初始状态键;
LAST--上一单元地址键; NEXT--下一单元地址键;
SHIFT--转换上档命令键,先按SHIFT键,再按命令键