📄 wl012.src
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; .\wl012.SRC generated from: wl012.C
; COMPILER INVOKED BY:
; D:\Keil\C51\BIN\C51.EXE wl012.C BROWSE DEBUG OBJECTEXTEND SRC(.\wl012.SRC)
$NOMOD51
NAME WL012
P0 DATA 080H
P1 DATA 090H
P2 DATA 0A0H
P3 DATA 0B0H
T0 BIT 0B0H.4
AC BIT 0D0H.6
T1 BIT 0B0H.5
EA BIT 0A8H.7
IE DATA 0A8H
RD BIT 0B0H.7
ES BIT 0A8H.4
IP DATA 0B8H
RI BIT 098H.0
INT0 BIT 0B0H.2
CY BIT 0D0H.7
TI BIT 098H.1
INT1 BIT 0B0H.3
PS BIT 0B8H.4
SP DATA 081H
OV BIT 0D0H.2
WR BIT 0B0H.6
SBUF DATA 099H
PCON DATA 087H
SCON DATA 098H
TMOD DATA 089H
TCON DATA 088H
IE0 BIT 088H.1
IE1 BIT 088H.3
B DATA 0F0H
ACC DATA 0E0H
ET0 BIT 0A8H.1
ET1 BIT 0A8H.3
TF0 BIT 088H.5
TF1 BIT 088H.7
RB8 BIT 098H.2
TH0 DATA 08CH
EX0 BIT 0A8H.0
IT0 BIT 088H.0
TH1 DATA 08DH
TB8 BIT 098H.3
EX1 BIT 0A8H.2
IT1 BIT 088H.2
P BIT 0D0H.0
SM0 BIT 098H.7
TL0 DATA 08AH
SM1 BIT 098H.6
TL1 DATA 08BH
SM2 BIT 098H.5
PT0 BIT 0B8H.1
PT1 BIT 0B8H.3
RS0 BIT 0D0H.3
TR0 BIT 088H.4
RS1 BIT 0D0H.4
TR1 BIT 088H.6
PX0 BIT 0B8H.0
PX1 BIT 0B8H.2
DPH DATA 083H
DPL DATA 082H
REN BIT 098H.4
RXD BIT 0B0H.0
TXD BIT 0B0H.1
F0 BIT 0D0H.5
PSW DATA 0D0H
?PR?main?WL012 SEGMENT CODE
?PR?timer0?WL012 SEGMENT CODE
?PR?update_disbuf?WL012 SEGMENT CODE
?DT?update_disbuf?WL012 SEGMENT DATA OVERLAYABLE
?CO?WL012 SEGMENT CODE
?DT?WL012 SEGMENT DATA
EXTRN CODE (?C_STARTUP)
EXTRN CODE (?C?UIDIV)
PUBLIC dis_buf
PUBLIC dis_index
PUBLIC dis_digit
PUBLIC dis_code
PUBLIC update_disbuf
PUBLIC timer0
PUBLIC main
RSEG ?DT?update_disbuf?WL012
?update_disbuf?BYTE:
tmp?241: DS 1
RSEG ?DT?WL012
dis_digit: DS 1
dis_index: DS 1
dis_buf: DS 8
RSEG ?CO?WL012
dis_code:
DB 0C0H
DB 0F9H
DB 0A4H
DB 0B0H
DB 099H
DB 092H
DB 082H
DB 0F8H
DB 080H
DB 090H
DB 0FFH
; /*******************************************************************************
; * *
; * File : .c *
; * Date : 2004-1-5 *
; * Version : 1.0 *
; * *
; * Author : Freeman freeman@willar.com *
; * Company : Willar www.willar.com *
; * *
; ********************************************************************************
; * Descriptoon: *
; * 计数器实验 *
; * *
; * 计数值单位,寄存器与数码管对应关系: *
; * *
; * --- 单位 ---------- 数码管端口 ---- 缓冲区 --------- *
; * X P20 dis_buf[7] *
; * X P21 dis_buf[6] *
; * X P22 dis_buf[5] *
; * 万位 P23 dis_buf[4] *
; * 千位 P24 dis_buf[3] *
; * 百位 P25 dis_buf[2] *
; * 十位 P26 dis_buf[1] *
; * 个位 P27 dis_buf[0] *
; * *
; *******************************************************************************/
; #include <reg51.h>
; #include <intrins.h>
;
;
; unsigned char code dis_code[11]={0xc0,0xf9,0xa4,0xb0, // 0, 1, 2, 3
; 0x99,0x92,0x82,0xf8,0x80,0x90, 0xff};// 4, 5, 6, 7, 8, 9, off
; unsigned char dis_buf[8]; // 显示缓冲区
; unsigned char dis_index; //
; unsigned char dis_digit;
;
; void update_disbuf();
;
; void main(void)
RSEG ?PR?main?WL012
main:
; SOURCE LINE # 39
; {
; SOURCE LINE # 40
; P0 = 0xff;
; SOURCE LINE # 41
MOV P0,#0FFH
; P2 = 0xff;
; SOURCE LINE # 42
MOV P2,#0FFH
; TMOD = 0x51; // 定时器0工作模式1, 16位定时方式;
; SOURCE LINE # 43
MOV TMOD,#051H
; // 定时器1工作模式1, 16位计数方式
; TH1 = 00;
; SOURCE LINE # 45
CLR A
MOV TH1,A
; TL1 = 0;
; SOURCE LINE # 46
MOV TL1,A
;
; TH0 = 0xFC;
; SOURCE LINE # 48
MOV TH0,#0FCH
; TL0 = 0x17;
; SOURCE LINE # 49
MOV TL0,#017H
;
; // 初始化显示缓冲区
; dis_buf[7] = 0xff; // 加最在数小于65536, 所以前三个数码不显示
; SOURCE LINE # 52
MOV dis_buf+07H,#0FFH
; dis_buf[6] = 0xff; //
; SOURCE LINE # 53
MOV dis_buf+06H,#0FFH
; dis_buf[5] = 0xff; //
; SOURCE LINE # 54
MOV dis_buf+05H,#0FFH
;
; dis_buf[4] = 0xc0; // 0xc0是'0'的显示代码
; SOURCE LINE # 56
MOV dis_buf+04H,#0C0H
; dis_buf[3] = 0xc0; //
; SOURCE LINE # 57
MOV dis_buf+03H,#0C0H
; dis_buf[2] = 0xc0; //
; SOURCE LINE # 58
MOV dis_buf+02H,#0C0H
; dis_buf[1] = 0xc0; //
; SOURCE LINE # 59
MOV dis_buf+01H,#0C0H
; dis_buf[0] = 0xc0; //
; SOURCE LINE # 60
MOV dis_buf,#0C0H
;
; dis_digit = 0x7f; // 初始显示P27口数码管
; SOURCE LINE # 62
MOV dis_digit,#07FH
; dis_index = 0; //
; SOURCE LINE # 63
MOV dis_index,A
;
; IE = 0x82; // 使能timer0中断
; SOURCE LINE # 65
MOV IE,#082H
;
; TR0 = 1;
; SOURCE LINE # 67
SETB TR0
; TR1 = 1;
; SOURCE LINE # 68
SETB TR1
?C0001:
;
; while(1);
; SOURCE LINE # 70
SJMP ?C0001
; END OF main
CSEG AT 0000BH
LJMP timer0
; }
;
;
; void timer0() interrupt 1
RSEG ?PR?timer0?WL012
USING 0
timer0:
PUSH ACC
PUSH B
PUSH DPH
PUSH DPL
PUSH PSW
MOV PSW,#00H
PUSH AR0
PUSH AR1
PUSH AR2
PUSH AR3
PUSH AR4
PUSH AR5
PUSH AR6
PUSH AR7
USING 0
; SOURCE LINE # 74
; // 定时器0中断服务程序, 用于数码管的动态扫描
; // dis_index --- 显示索引, 用于标识当前显示的数码管和缓冲区的偏移量
; // dis_digit --- 位选通值, 传送到P2口用于选通当前数码管的数值, 如等于0xfe时,
; // 选通P2.0口数码管
; // dis_buf --- 显于缓冲区基地址
; {
; TH0 = 0xFC;
; SOURCE LINE # 81
MOV TH0,#0FCH
; TL0 = 0x17;
; SOURCE LINE # 82
MOV TL0,#017H
;
; P2 = 0xff; // 先关闭所有数码管
; SOURCE LINE # 84
MOV P2,#0FFH
; P0 = dis_buf[dis_index]; // 显示代码传送到P0口
; SOURCE LINE # 85
MOV A,#LOW (dis_buf)
ADD A,dis_index
MOV R0,A
MOV A,@R0
MOV P0,A
; P2 = dis_digit; //
; SOURCE LINE # 86
MOV P2,dis_digit
;
; dis_digit = _cror_(dis_digit,1); // 位选通值右移(P20<-P27), 下次中断时选通下一位数码管
; SOURCE LINE # 88
MOV R7,dis_digit
MOV R0,#01H
MOV A,R7
INC R0
SJMP ?C0008
?C0007:
RR A
?C0008:
DJNZ R0,?C0007
MOV dis_digit,A
; dis_index++; //
; SOURCE LINE # 89
INC dis_index
;
; dis_index &= 0x07; // 8个数码管全部扫描完一遍之后，再回到第一个开始下一次扫描
; SOURCE LINE # 91
ANL dis_index,#07H
; if(dis_index == 0)
; SOURCE LINE # 92
MOV A,dis_index
JNZ ?C0005
; {
; SOURCE LINE # 93
; update_disbuf();
; SOURCE LINE # 94
LCALL update_disbuf
; }
; SOURCE LINE # 95
; }
; SOURCE LINE # 96
?C0005:
POP AR7
POP AR6
POP AR5
POP AR4
POP AR3
POP AR2
POP AR1
POP AR0
POP PSW
POP DPL
POP DPH
POP B
POP ACC
RETI
; END OF timer0
;
; void update_disbuf()
RSEG ?PR?update_disbuf?WL012
update_disbuf:
USING 0
; SOURCE LINE # 98
; {
; SOURCE LINE # 99
; unsigned int count;
; unsigned char tmp;
;
; count = (TH1 << 8) | TL1;
; SOURCE LINE # 103
MOV R7,TH1
MOV A,R7
MOV R6,A
MOV R5,TL1
MOV A,R5
;---- Variable 'count?240' assigned to Register 'R2/R3' ----
MOV R3,A
MOV R2,AR6
;
; tmp = count / 10000;
; SOURCE LINE # 105
MOV R4,#027H
MOV R5,#010H
MOV R7,A
LCALL ?C?UIDIV
MOV tmp?241,R7
; count = count % 10000;
; SOURCE LINE # 106
MOV R4,#027H
MOV R5,#010H
MOV R7,AR3
MOV R6,AR2
LCALL ?C?UIDIV
MOV R2,AR4
MOV R3,AR5
; dis_buf[4] = dis_code[tmp];
; SOURCE LINE # 107
MOV A,tmp?241
MOV DPTR,#dis_code
MOVC A,@A+DPTR
MOV dis_buf+04H,A
;
; tmp = count / 1000;
; SOURCE LINE # 109
MOV R4,#03H
MOV R5,#0E8H
MOV R7,AR3
MOV R6,AR2
LCALL ?C?UIDIV
MOV tmp?241,R7
; count = count % 1000;
; SOURCE LINE # 110
MOV R4,#03H
MOV R5,#0E8H
MOV R7,AR3
MOV R6,AR2
LCALL ?C?UIDIV
MOV R2,AR4
MOV R3,AR5
; dis_buf[3] = dis_code[tmp];
; SOURCE LINE # 111
MOV A,tmp?241
MOVC A,@A+DPTR
MOV dis_buf+03H,A
;
; tmp = count / 100;
; SOURCE LINE # 113
MOV R4,#00H
MOV R5,#064H
MOV R7,AR3
MOV R6,AR2
LCALL ?C?UIDIV
MOV tmp?241,R7
; count = count % 100;
; SOURCE LINE # 114
MOV R4,#00H
MOV R5,#064H
MOV R7,AR3
MOV R6,AR2
LCALL ?C?UIDIV
MOV R2,AR4
MOV R3,AR5
; dis_buf[2] = dis_code[tmp];
; SOURCE LINE # 115
MOV A,tmp?241
MOVC A,@A+DPTR
MOV dis_buf+02H,A
;
; tmp = count / 10;
; SOURCE LINE # 117
MOV R4,#00H
MOV R5,#0AH
MOV R7,AR3
MOV R6,AR2
LCALL ?C?UIDIV
MOV tmp?241,R7
; count = count % 10;
; SOURCE LINE # 118
MOV R4,#00H
MOV R5,#0AH
MOV R7,AR3
MOV R6,AR2
LCALL ?C?UIDIV
MOV R3,AR5
; dis_buf[1] = dis_code[tmp];
; SOURCE LINE # 119
MOV A,tmp?241
MOVC A,@A+DPTR
MOV dis_buf+01H,A
; dis_buf[0] = dis_code[count];
; SOURCE LINE # 120
MOV R7,AR3
MOV A,R7
MOVC A,@A+DPTR
MOV dis_buf,A
; }
; SOURCE LINE # 121
RET
; END OF update_disbuf
END
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