startup.lst
来自「cs8900 c51应用」· LST 代码 · 共 631 行 · 第 1/3 页
LST
631 行
0091 +1 196 sbit T2EX = 0x91; /* Timer/Counter 2 capture/reload trigger & dir ctl */
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0094 +1 198 sbit SS = 0x94; /* SPI: SS - Slave port select input */
0095 +1 199 sbit MOSI = 0x95; /* SPI: MOSI - Master data output, slave data input */
0096 +1 200 sbit MISO = 0x96; /* SPI: MISO - Master data input, slave data output */
0097 +1 201 sbit SCK = 0x97; /* SPI: SCK - Master clock output, slave clock input */
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0098 +1 229 sbit RI = 0x98; /* Receive Interrupt Flag */
0099 +1 230 sbit TI = 0x99; /* Transmit Interrupt Flag */
009A +1 231 sbit RB8 = 0x9A; /* 9th data bit received */
009B +1 232 sbit TB8 = 0x9B; /* 9th data bit to be transmitted in modes 2 & 3 */
009C +1 233 sbit REN = 0x9C; /* Receive Enable */
009D +1 234 sbit SM2 = 0x9D; /* Serial Port Mode Bit 2 */
009E +1 235 sbit SM1 = 0x9E; /* Serial Port Mode Bit 1 */
009F +1 236 sbit SM0 = 0x9F; /* Serial Port Mode Bit 0 */
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00A0 +1 241 sbit P2_0 = 0xA0;
00A1 +1 242 sbit P2_1 = 0xA1;
00A2 +1 243 sbit P2_2 = 0xA2;
00A3 +1 244 sbit P2_3 = 0xA3;
00A4 +1 245 sbit P2_4 = 0xA4;
00A5 +1 246 sbit P2_5 = 0xA5;
00A6 +1 247 sbit P2_6 = 0xA6;
00A7 +1 248 sbit P2_7 = 0xA7;
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00A8 +1 253 sbit EX0 = 0xA8; /* External Interrupt 0 Enable: 1=Enabled */
00A9 +1 254 sbit ET0 = 0xA9; /* Timer 0 Interrupt Enable: 1=Enabled */
00AA +1 255 sbit EX1 = 0xAA; /* External Interrupt 1 Enable: 1=Enabled */
A51 MACRO ASSEMBLER STARTUP 11/26/2004 11:32:42 PAGE 5
00AB +1 256 sbit ET1 = 0xAB; /* Timer 1 Interrupt Enable: 1=Enabled */
00AC +1 257 sbit ES = 0xAC; /* SPI and UART Interrupt Enable: 1=Enabled */
00AD +1 258 sbit ET2 = 0xAD; /* Timer 2 Interrupt Enable: 1=Enabled */
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00AF +1 260 sbit EA = 0xAF; /* Global Interrupt Enable: 0=Disable all interrupts */
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00B0 +1 271 sbit P3_0 = 0xB0;
00B1 +1 272 sbit P3_1 = 0xB1;
00B2 +1 273 sbit P3_2 = 0xB2;
00B3 +1 274 sbit P3_3 = 0xB3;
00B4 +1 275 sbit P3_4 = 0xB4;
00B5 +1 276 sbit P3_5 = 0xB5;
00B6 +1 277 sbit P3_6 = 0xB6;
00B7 +1 278 sbit P3_7 = 0xB7;
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00B0 +1 280 sbit RXD = 0xB0; /* Serial data input */
00B1 +1 281 sbit TXD = 0xB1; /* Serial data output */
00B2 +1 282 sbit INT0 = 0xB2; /* External interrupt 0 */
00B3 +1 283 sbit INT1 = 0xB3; /* External interrupt 1 */
00B4 +1 284 sbit T0 = 0xB4; /* Timer 0 external input */
00B5 +1 285 sbit T1 = 0xB5; /* Timer 1 external input */
00B6 +1 286 sbit WR = 0xB6; /* External data memory write strobe */
00B7 +1 287 sbit RD = 0xB7; /* External data memory read strobe */
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00B8 +1 292 sbit PX0 = 0xB8; /* External Interrupt 0 Priority Bit */
00B9 +1 293 sbit PT0 = 0xB9; /* Timer 0 Interrupt Priority Bit */
00BA +1 294 sbit PX1 = 0xBA; /* External Interrupt 1 Priority Bit */
00BB +1 295 sbit PT1 = 0xBB; /* Timer 1 Interrupt Priority Bit */
00BC +1 296 sbit PS = 0xBC; /* Serial Port Interrupt Priority Bit */
00BD +1 297 sbit PT2 = 0xBD; /* Timer 2 Interrupt Priority Bit */
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00C8 +1 302 sbit CP_RL2= 0xC8; /* 0=Reload, 1=Capture select */
00C9 +1 303 sbit C_T2 = 0xC9; /* 0=Timer, 1=Counter */
00CA +1 304 sbit TR2 = 0xCA; /* 0=Stop timer, 1=Start timer */
00CB +1 305 sbit EXEN2= 0xCB; /* Timer 2 external enable */
00CC +1 306 sbit TCLK = 0xCC; /* 0=Serial clock uses Timer 1 overflow, 1=Timer 2 */
00CD +1 307 sbit RCLK = 0xCD; /* 0=Serial clock uses Timer 1 overflow, 1=Timer 2 */
00CE +1 308 sbit EXF2 = 0xCE; /* Timer 2 external flag */
00CF +1 309 sbit TF2 = 0xCF; /* Timer 2 overflow flag */
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00D0 +1 320 sbit P = 0xD0; /* Parity Flag */
00D1 +1 321 sbit FL = 0xD1; /* User Flag */
A51 MACRO ASSEMBLER STARTUP 11/26/2004 11:32:42 PAGE 6
00D2 +1 322 sbit OV = 0xD2; /* Overflow Flag */
00D3 +1 323 sbit RS0 = 0xD3; /* Register Bank Select Bit 0 */
00D4 +1 324 sbit RS1 = 0xD4; /* Register Bank Select Bit 1 */
00D5 +1 325 sbit F0 = 0xD5; /* User Flag 0 */
00D6 +1 326 sbit AC = 0xD6; /* Auxiliary Carry Flag */
00D7 +1 327 sbit CY = 0xD7; /* Carry Flag */
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361
362
363 NAME ?C_STARTUP
364
365
366 ?C_C51STARTUP SEGMENT CODE
367 ?STACK SEGMENT IDATA
368
---- 369 RSEG ?STACK
0000 370 DS 1
371
372 EXTRN CODE (?C_START)
373 PUBLIC ?C_STARTUP
374
375
376 $if MONITOR
---- 377 CSEG AT 2000H
378 $else
CSEG AT 0H
$endif
381
2000 020000 F 382 ?C_STARTUP: LJMP STARTUP1
383
---- 384 RSEG ?C_C51STARTUP
385
0000 386 STARTUP1:
387
A51 MACRO ASSEMBLER STARTUP 11/26/2004 11:32:42 PAGE 7
388 IF IDATALEN <> 0
0000 787F 389 MOV R0,#IDATALEN - 1
0002 E4 390 CLR A
0003 F6 391 IDATALOOP: MOV @R0,A
0004 D8FD 392 DJNZ R0,IDATALOOP
393 ENDIF
394
395 IF XDATALEN <> 0
MOV DPTR,#XDATASTART
MOV R7,#LOW (XDATALEN)
IF (LOW (XDATALEN)) <> 0
MOV R6,#(HIGH XDATALEN) +1
ELSE
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