D: arc SRC KUT51 KUT51LCD.LST KUT51LCD PAGE 1

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1 D: arc SRC KUT51.LST PAGE ; Ver 1.1 : Hyper Terminal and LCD supported(line delay=20 ms, bps) 2 3 $mod ; PORT DEFINITION F800 6 LCD_COMMAND_WR EQU 0F800H F801 7 LCD_DATA_WR EQU 0F801H F802 8 LCD_COMMAND_RD EQU 0F802H F803 9 LCD_DATA_RD EQU 0F803H RAM equ 8000h ; RAM start address STACK equ 40h ; STACK area 001B 13 ESC equ 1Bh ; escape code 000D 14 cr equ 0dh ; carriage return code 000A 15 lf equ 0ah ; line feed code ; CPU Reset org ajmp INIT ;Interrupt Service Routines org 3 ; 0003 external INT ljmp RAM B 25 org 000bh ; 000B timer 0 000B 02800B 26 ljmp RAM+0bh org 0013h ; 0013 external INT ljmp RAM+13h B 31 org 001bh ; 001b timer 1 001B 02801B 32 ljmp RAM+1bh org 0023h ; 0023 serial RI and TI ljmp RAM+23h ; MAIN STARTS HERE INIT: mov a,#stack ; set stack pointer 0028 F mov sp,a ; Power-on Sign, LED 4,7 On, 5,6 Off 002A 7590F6 42 mov P1,#0f6h D E4 44 clr a 002E F5D0 45 mov psw,a ; set register bank zero ;initialize serial & LCD port B 48 CALL SERIAL_INIT DE 49 CALL LCD_INIT MENU: LCALL XSTRING D0A0A0A 52 db cr, lf, lf, lf 003D 2A2A2A2A 53 db '****************************************', cr, lf A2A2A2A A2A2A2A A2A2A2A 004D 2A2A2A2A A2A2A2A PAGE 2

2 D: arc SRC KUT51.LST A2A2A2A A2A2A2A 005D 2A2A2A2A A2A2A2A D0A A204B55 54 db '* KUT51 Mini-Monitor Program Ver. 1.1 *', CR, LF 006B F 4D696E D4D6F6E F72 007B F 007F D E B 2E31202A 008F 0D0A A2A2A2A 55 db '****************************************', cr, lf A2A2A2A A2A2A2A 009D 2A2A2A2A 00A1 2A2A2A2A 00A5 2A2A2A2A 00A9 2A2A2A2A 00AD 2A2A2A2A 00B1 2A2A2A2A 00B5 2A2A2A2A 00B9 0D0A 00BB E 56 db 'Ver LCD supported', CR, LF 00BF 312E C3 2D204C43 00C CB 70706F72 00CF D 00D3 0A 00D E 57 db 'Ver Hyper terminal supported', cr, lf 00D8 312E DC 2D E E D 00E8 696E616C 00EC F0 706F F D0A 00F db ' (20ms line delay, 19200bps)', cr,lf,lf,lf 00FC D73206C E C 64656C C C 0D0A0A0A E db 'ENTER THE LETTER FOR YOUR SELECTION:',lf,cr,lf,cr C45 012C PAGE F F

3 D: arc SRC KUT51.LST 013C 4C F4E3A A0D0A0D D20 61 db 'U - "Upload Hex File to RAM"',lf,cr 014C C F C65 015C 20746F D A0D D20 62 db 'G - "GO to Specified Address"',lf,cr 016A 22474F20 016E 746F A E A0D D20 63 db 'D - "Dump External ROM & RAM"',lf,cr D 018D E C F4D D D 01A1 220A0D 01A D20 64 db 'W - "Write External RAM with a Byte"',lf,cr 01A AC B B4 6E616C20 01B D20 01BC C C C8 0A0D 01CA 48202D20 65 db 'H - "Display HELP Menu, Start Again"', lf, cr 01CE D2 706C D C 01DA 50204D65 01DE 6E752C20 01E E EA 61696E22 01EE 0A0D 01F0 0A0A0A0A 66 db lf,lf,lf,lf ;advance to 24th line 01F4 1B 67 db esc 01F getsel: lcall xstring 01F8 0D0A4B55 69 db cr,lf,'kut51>' ;prompt 01FC E B 70 db ESC MOV A, #01H ; CLEAR DISPLAY, HOME CURSOR PAGE B7 73 CALL LCD_COMMAND_WRITE MOV A, #16 ; REQUIRE 1.53MS(SPEC. SHEET) CALL DELAY100US B MOV DPTR, #MSG1 ; DISPLAY 1ST LINE

4 D: arc SRC KUT51.LST 020E 1204F4 79 CALL LCD_PRINT C0 81 MOV A, #0C0H ; CURSOR TO SECOND LINE HOME B7 82 CALL LCD_COMMAND_WRITE MOV DPTR, #MSG2 ; DISPLAY 2ND LINE F4 85 CALL LCD_PRINT C LCALL CHR_IN 021F 545F 88 anl a,#5fh ; uppercase to lowercase Check_Dump: 0221 B CJNE A, #'D', Check_Write ; IF NOT D, THEN CHECK L F 92 AJMP RUN_DUMP ; D, RUN DUMP MEMORY Check_Write: 0226 B CJNE A, #'W', Check_Go ; IF NOT L, THEN CHECK J E7 95 AJMP RUN_WRITE ; W, RUN WRITE BYTE 022B 96 Check_Go: 022B B CJNE A, #'G', Check_Upload ; IF NOT J, THEN CHECK P 022E 61A2 98 AJMP RUN_GO ; J, RUN JUMP TO ADDRESS Check_UPload: 0230 B CJNE A,#'U',Help_MENU ; IF NOT P, THEN CHECK I E1 101 AJMP RUN_UPLOAD ; U, RUN UPLOAD PROGRAM Help_MENU: 0235 B cjne a, #'H',other_key ACALL WAIT ; default - wait, then show menu 023A LJMP MENU 023D 107 other_key: 023D LCALL XSTRING A0D db lf,cr,'### Incorrect Key Input("H" for HELP) ###' E F C B E C F C B 1B 110 db ESC 026C 0201F5 111 ljmp getsel ;Display external data memory (hex and ASCII) 026F 114 RUN_DUMP: 026F LCALL XSTRING ; ASK FOR START ADDRESS A0D454E 116 db lf,cr,'enter 2-BYTE START ADDRESS:',lf,cr A 322D E PAGE A E 3A0A0D B 117 db ESC ACALL READHEX ; PUT START ADDR IN DPTR 0294 F MOV DPH,A ACALL READHEX F0 121 ANL A,#0F0h ; START ON 16-BYTE BOUNDARY 029A F MOV DPL,A ; HAVE START ADDRESS IN DPTR 4

5 D: arc SRC KUT51.LST C 910E 124 acall lfcr ;SET UP ROW COUNTER 029E mov r1,#10h ; Fixed to 00-ffh 02A0 910E 128 ACALL LFCR ; GO TO NEXT LINE TO START A2 130 LOUTLOOP: 02A MOV R0,#16 ; SET UP BYTE COUNTER 02A4 E MOV A,DPH ; AT START OF LINE OUTPUT ADDR 02A6 917F 133 ACALL WRBYTE 02A8 E MOV A,DPL 02AA 917F 135 ACALL WRBYTE 02AC MOV A,#' ' ; AND SPACE TO MAKE IT TIDY 02AE ACALL CHR_OUT 02B0 C push dpl 02B2 C push dph ; save line start address on stack 02B4 140 BOUTLOOP: 02B4 E0 141 MOVX A,@DPTR ; OUTPUT ROW ONE BYTE AT A TIME 02B5 917F 142 ACALL WRBYTE 02B MOV A,#' ' 02B ACALL CHR_OUT 02BB A3 145 INC DPTR 02BC D8F6 146 DJNZ R0,BOUTLOOP 02BE D pop dph 02C0 D pop dpl ; restore line start address 02C2 51CD 149 acall dascii 02C4 910E 150 ACALL LFCR 02C6 D9DA 151 DJNZ R1,LOUTLOOP 02C8 910E 152 acall lfcr 02CA 0201F5 153 LJMP getsel ; return to command mode 154 ; 02CD dascii: mov r0,#16 ; initalize loop count 02CF mov a,#' ' 02D acall chr_out ; put out couple of spaces 02D acall chr_out 02D5 E0 159 dasci1: movx a,@dptr ; get the byte 02D6 547F 160 anl a,#07fh ; mask parity bit 02D8 C3 161 clr c 02D subb a,#' ' ; subtract ascii space 02DB jnc dasci2 ; jump if displayable 02DD 740E 164 mov a,#('.'-' ') ; load "." minus space if not displayable 02DF dasci2: add a,#' ' ; make it ascii again 02E acall chr_out 02E3 A3 167 inc dptr ; bump data pointer 02E4 D8EF 168 djnz r0,dasci1 ; and loop 'till done 02E ret ; return and do next line E7 171 RUN_WRITE: PAGE 6 02E ACALL XSTRING 02E9 0A0D454E 173 db lf,cr,'enter THE 2-BYTE STARTING ADDRESS YOU WISH TO CHANGE:' 02ED F F5 322D F FD E

6 D: arc SRC KUT51.LST D 594F F E 031D 47453A A0D284E 174 db lf,cr,'(note : Writing to ROM will NOT cause an ERROR)', lf,cr F A C E F F4D C 033C 6C204E4F E C 52524F A0D B 175 db ESC ACALL READHEX ; FIRST GET THE TWO ADDRESS BYTES 0356 F MOV DPH,A ACALL READHEX 035A F MOV DPL,A 035C C PUSH DPH ; SAVE THE ADDRESS 035E C PUSH DPL MOV A,#' ' ; SPACE BETWEEN ADDRESS AND DATA ACALL CHR_OUT 0364 E0 184 MOVX A,@DPTR ; SHOW THE CURRENT DATA F 185 ACALL WRBYTE ACALL XSTRING A0D454E 187 db lf,cr,'enter THE BYTE TO BE WRITTEN(IN HEX):',lf,cr 036D F20 037D E E D 58293A0A D B 188 db ESC ACALL READHEX ; GET THE NEW VALUE 0395 D POP DPL 0397 D POP DPH 0399 F0 192 ; MOVE THE NEW VALUE TO MEMORY A lcall xstring PAGE 7 039D 0D 195 db cr 039E 1B 196 db ESC 197 ;******* 039F 0201F5 198 LJMP getsel ; return to command mode 199 ; 200 ; ;Go to address 03A2 202 RUN_GO: 03A ACALL XSTRING 03A4 0A0D454E 204 db lf,cr,'enter THE 2-BYTE JUMP DESTINATION ADDRESS:',lf,cr 03A

7 D: arc SRC KUT51.LST 03AC B0 322D B A 03B8 554D BC C0 494E C4 494F4E20 03C CC A 03D0 0A0D 03D2 1B 205 db ESC 03D ACALL READHEX ; FIRST GET THE JUMP ADDRESS 03D5 F MOV DPH,A 03D ACALL READHEX 03D9 F MOV DPL,A 03DB 910E 210 ACALL LFCR 03DD 910E 211 ACALL LFCR DF E4 213 clr a 03E ; JUMP TO THE ADDRESS ;Load hex file into memory 03E1 217 RUN_UPLOAD: 03E1 910E 218 ACALL LFCR 219 ;ACALL LFCR 03E3 220 U_RUN1: 03E ACALL CHR_IN ; GET RID OF : AT START OF LINE 03E5 B43AFB 222 CJNE A,#':', U_RUN1 03E ACALL READHEX 03EA JZ ALLREAD ; LAST RECORD HAS 01 IN RECORD TYPE 03EC FD 225 MOV R5,A ; LOAD BYTE COUNT FOR LINE INTO R5 03ED ACALL READHEX ; READ HIGH BYTE OF START ADDRESS 03EF F MOV DPH,A 03F ACALL READHEX ; READ LOW BYTE OF START ADDRESS 03F3 F MOV DPL,A 03F ACALL READHEX ; READ RECORD TYPE 00 = DATA, 01 = END 03F7 231 READLOOP: 03F ACALL READHEX 03F9 F FA A3 234 INC DPTR ; MOVE DPTR TO NEXT BYTE ADDRESS 03FB DDFA 235 DJNZ R5,READLOOP ; DECR BYTE COUNTER, JNZ 03FD ACALL READHEX ; GET RID OF CHECKSUM, NO CHECKING FF 61E1 238 AJMP RUN_UPLOAD ; GET NEXT LINE ALLREAD: ACALL READHEX ; READ ADDRESS ACALL READHEX ; READ ADDRESS PAGE ACALL READHEX ; READ RECORD TYPE ACALL READHEX ; READ LAST CHECKSUM ACALL CHR_IN ; CR=HyperTerm. last char=0dh B 0201F5 246 LJMP getsel ; DONE, GO BACK TO MENU E 740A 248 LFCR: MOV A,#lf ACALL CHR_OUT D 250 MOV A,#cr ACALL CHR_OUT 7

8 D: arc SRC KUT51.LST RET 253 ; 254 ; WAIT PAUSES FOR A FRACTION OF A SECOND. FREQUENCY UNKNOWN 255 ; FF 256 WAIT: MOV A,# F0FF 257 WAIT1: MOV B,#-1 041C D5F0FD 258 DJNZ B,$ 041F DEC A F7 260 JNZ WAIT RET 262 ; 263 ; THE TEXT STRING MUST END WITH AN ESC CHARACTER 264 ; XSTRING: 0423 D POP DPH ; LOAD DPTR WITH FIRST CHAR 0425 D POP DPL 0427 E4 268 XSTR_1: CLR A MOVC A,@A+DPTR ; FETCH FIRST CHAR IN STRING FD 270 XSTR_2: JNB TI,$ ; WAIT UNTIL TRANSMITTER READY 042C C CLR TI ; MARK AS NOT READY 042E F MOV SBUF,A 0430 A3 273 INC DPTR 0431 E4 274 CLR A MOVC A,@A+DPTR ; GET NEXT CHARACTER 0433 B41BF3 276 CJNE A,#ESC,XSTR_2 ; LOOP UNTIL ESCAPE READ MOV A,# ; RETURN TO CODE AFTER ESCAPE 279 ; 280 ; READS THE SERIAL PORT AND ECHO BACK FD 281 CHR_IN: JNB RI,$ 043C C CLR RI 043E E MOV A,SBUF F 284 ANL A,#7Fh ACALL CHR_OUT RET 287 ; 288 ; SENDS A CHARACTER(ASCII) IN A OUT THE SERIAL PORT CHR_OUT: FD 290 JNB TI,$ 0448 C CLR TI 044A F MOV SBUF,A 044C RET ; ASCII CHARACTER IN A --> HEX 296 ; LOWER NIBBLE = HEX, UPPER NIBBLE = 0 044D 297 ASC2HEX: 044D C2D7 298 CLR CY 044F SUBB A,#'0' PAGE F5F0 300 MOV B,A A 301 SUBB A,#10 ; subtract 10 decimal D JB CY,A2LT E5F0 303 MOV A,B 045A SUBB A,#7 045C F5F0 305 MOV B,A 045E E5F0 306 A2LT10: MOV A,B RET ; CONVERTS THE LOWER NIBBLE IN A TO AN ASCII CHARACTER RETURNED IN A HEX2ASC: F 311 ANL A,#0Fh 0463 C2D7 312 CLR CY

9 D: arc SRC KUT51.LST 0465 F5F0 313 MOV B,A A 314 SUBB A,# E5F0 315 MOV A,B 046B 20D JB CY,H2LT10 046E ADD A,# H2LT10: ADD A,#'0' RET 320 ; 321 ; READS TWO ASCII CHARACTERS FROM THE SERIAL PORT AND 322 ; CONVERTS THEM INTO A BYTE RETURNED IN A. USES 323 ; REGISTER 2 IN THE FIRST BANK READHEX: ACALL CHR_IN D 326 ACALL ASC2HEX 0477 C4 327 SWAP A ; HIGH ORDER NIBBLE IS FIRST ONE 0478 FA 328 MOV R2,A ; SAVE THE HIGH ORDER NIBBLE ACALL CHR_IN 047B 914D 330 ACALL ASC2HEX 047D 4A 331 ORL A,R2 ; PUT NIBBLES TOGETHER IN A 047E RET ; WRITES BYTE IN A TO THE SERIAL PORT AS TWO ASCII 335 ; CHARACTERS. USES REGISTER 2 IN THE FIRST BANK. 047F FA 336 WRBYTE: MOV R2,A 0480 C4 337 SWAP A ACALL HEX2ASC ACALL CHR_OUT 0485 EA 340 MOV A,R ACALL HEX2ASC ACALL CHR_OUT 048A RET ; SERIAL INIT 048B 346 SERIAL_INIT: 048B MOV SCON,#52h 048E MOV TMOD,#20h mov pcon, #80h ; SMOD = 1 for 19200bps (0 for 9600) DFD 350 MOV TH1,#0FDh ; #0FDH=9600/19200 BAUD 0497 D28E 351 SETB TR1 ; START TIMER FOR SERIAL PORT ; WAIT UNTIL LCD READY BIT SET LCD_READY: 0499 C0E0 355 PUSH ACC 049B 90F MOV DPTR, #LCD_COMMAND_RD 049E 357 LCD_READY0: PAGE E E0 358 MOVX A,@DPTR 049F 20E7FC 359 JB ACC.7, LCD_READY0 ; LOOP IF BUSY FLAG = 1 04A2 D0E0 360 POP ACC 04A RET ; SEND DATA TO LCD 364 ; INPUT : A = OUTPUT CHARACTER 04A5 365 LCD_DATA_WRITE: 04A5 C PUSH DPL 04A7 C PUSH DPH A CALL LCD_READY AB 90F MOV DPTR,#LCD_DATA_WR 04AE F

10 D: arc SRC KUT51.LST AF 1204FF 374 CALL DELAY40US B2 D POP DPH 04B4 D POP DPL 04B RET ; SEND COMMAND TO LCD 381 ; INPUT : A = OUTPUT COMMAND 04B7 382 LCD_COMMAND_WRITE: 04B7 C PUSH DPL 04B9 C PUSH DPH BB CALL LCD_READY BD 90F MOV DPTR, #LCD_COMMAND_WR 04C0 F0 389 A C1 1204FF 391 CALL DELAY40US ; REQUIRE 39US DELAY(SPEC. SHEET) C4 D POP DPH 04C6 D POP DPL 04C RET ; LCD CURSOR POSITION 398 ; INPUT: A = LINE NUMBER - 0 ~ ; B = DIGIT NUMBER = DISPLAY DATA RAM(DDRAM) - 0 ~ 15 04C9 400 LCD_CURSOR: 04C9 B CJNE A, #0, LCD_CURSOR1 ; 2ND LINE 04CC E5F0 402 MOV A, B ; 1ST LINE 04CE ADD A, #80H 04D0 91B7 404 CALL LCD_COMMAND_WRITE 04D RET 04D3 406 LCD_CURSOR1: 04D3 B CJNE A, #1, LCD_CURSOR_ERR 04D6 E5F0 408 MOV A, B 04D8 24C0 409 ADD A, #0C0H 04DA 91B7 410 CALL LCD_COMMAND_WRITE 04DC RET 04DD 412 LCD_CURSOR_ERR: 04DD RET ;INITIALIZE THE LCD PAGE 11 04DE 416 LCD_INIT: 04DE MOV A, #150 ; PAUSE FOR 15MS 04E CALL DELAY100US E MOV A, #38H 04E5 91B7 421 CALL LCD_COMMAND_WRITE ; SET 8-BIT, 2-LINE, 5X8 FONT E MOV A, #08H 04E9 91B7 424 CALL LCD_COMMAND_WRITE ; DISPLAY ON, CURSOR OFF, BLINK OFF EB 740E 426 MOV A, #0EH 04ED 91B7 427 CALL LCD_COMMAND_WRITE ; DISPLAY ON, CURSOR ON, BLINK OFF EF MOV A, #06H 04F1 91B7 430 CALL LCD_COMMAND_WRITE ; CURSOR INCRE.(MOVES RIGHT), NO SHIFT 10

11 D: arc SRC KUT51.LST F RET ; SEND A STRING TO LCD 435 ; INPUT: DPTR = STRING ADDRESS 04F4 436 LCD_PRINT: 04F MOV A, #0 ; MOVC INDEX = 0 04F MOVC ; READ CHAR F JZ LCD_PRINT01 ; STRING END '00' F9 91A5 442 CALL LCD_DATA_WRITE FB A3 444 INC DPTR 04FC 80F6 445 SJMP LCD_PRINT ; REPEAT LOOP 04FE 446 LCD_PRINT01: 04FE RET ; 40 MICROSECOND DELAY 451 ; MHZ = 1 MACHINE CYCLE = US 452 ; 2(CALL) + 35 = 37 ( US) 04FF 453 DELAY40US: 04FF C PUSH 1 ; (2) SAVE REGISTER R D 455 MOV R1, #13 ; (1) 20 DJNZ INSTR = 40US 0503 D9FE 456 DJNZ R1, $ ; (2 X 14) = D POP 1 ; (2) RESTORE REGISTER R RET ; (2) ; ACC*100US DELAY 461 ; INPUT: ACC =? (100 US APPROX.) 462 ; 2(CALL) = 102 (110 US) DELAY100US: 0508 C PUSH 1 ; (1) SAVE REGISTER R A 466 DELAY100US01: 050A 792E 467 MOV R1, #46 ; (1) 46 X 2 DJNZ INS. X = us 050C D9FE 468 DJNZ R1, $ ; (2 X 46) = E D5E0F9 469 DJNZ ACC, DELAY100US01 ; (2) D POP 1 ; (2) RET ; (2) 473 PAGE MSG1: B 475 DB ' KUT51-LCD ',00H C 2D4C MSG2: DB '!!! READY!!! ',00H D ; 480 END VERSION 1.2i ASSEMBLY COMPLETE, 0 ERRORS FOUND 11

12 D: arc SRC KUT51.LST PAGE A2LT C ADDR 045EH ACC D ADDR 00E0H PREDEFINED ALLREAD C ADDR 0401H ASC2HEX C ADDR 044DH B D ADDR 00F0H PREDEFINED BOUTLOOP C ADDR 02B4H CHECK_DUMP C ADDR 0221H NOT USED CHECK_GO C ADDR 022BH CHECK_UPLOAD C ADDR 0230H CHECK_WRITE C ADDR 0226H CHR_IN C ADDR 0439H CHR_OUT C ADDR 0445H CR NUMB 000DH CY B ADDR 00D7H PREDEFINED DASCI C ADDR 02D5H DASCI C ADDR 02DFH DASCII C ADDR 02CDH DELAY100US C ADDR 0508H DELAY100US C ADDR 050AH DELAY40US C ADDR 04FFH DPH D ADDR 0083H PREDEFINED DPL D ADDR 0082H PREDEFINED ESC NUMB 001BH GETSEL C ADDR 01F5H H2LT C ADDR 0470H HELP_MENU C ADDR 0235H HEX2ASC C ADDR 0461H INIT C ADDR 0026H LCD_COMMAND_RD NUMB F802H LCD_COMMAND_WR NUMB F800H LCD_COMMAND_WRITE C ADDR 04B7H LCD_CURSOR C ADDR 04C9H NOT USED LCD_CURSOR C ADDR 04D3H LCD_CURSOR_ERR C ADDR 04DDH LCD_DATA_RD NUMB F803H NOT USED LCD_DATA_WR NUMB F801H LCD_DATA_WRITE C ADDR 04A5H LCD_INIT C ADDR 04DEH LCD_PRINT C ADDR 04F4H LCD_PRINT C ADDR 04FEH LCD_READY C ADDR 0499H LCD_READY C ADDR 049EH LF NUMB 000AH LFCR C ADDR 040EH LOUTLOOP C ADDR 02A2H MENU C ADDR 0036H MSG C ADDR 0514H MSG C ADDR 0525H OTHER_KEY C ADDR 023DH P D ADDR 0090H PREDEFINED PCON D ADDR 0087H PREDEFINED PSW D ADDR 00D0H PREDEFINED RAM NUMB 8000H READHEX C ADDR 0473H READLOOP C ADDR 03F7H RI B ADDR 0098H PREDEFINED RUN_DUMP C ADDR 026FH RUN_GO C ADDR 03A2H PAGE 14

13 D: arc SRC KUT51.LST RUN_UPLOAD C ADDR 03E1H RUN_WRITE C ADDR 02E7H SBUF D ADDR 0099H PREDEFINED SCON D ADDR 0098H PREDEFINED SERIAL_INIT C ADDR 048BH SP D ADDR 0081H PREDEFINED STACK NUMB 0040H TH D ADDR 008DH PREDEFINED TI B ADDR 0099H PREDEFINED TMOD D ADDR 0089H PREDEFINED TR B ADDR 008EH PREDEFINED U_RUN C ADDR 03E3H WAIT C ADDR 0417H WAIT C ADDR 0419H WRBYTE C ADDR 047FH XSTRING C ADDR 0423H XSTR_ C ADDR 0427H NOT USED XSTR_ C ADDR 0429H 13

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