1 / 3

PD32

PD32. IACK. DISPLAY. IO AB. IO DB. IO CB. IRQ. IACK. START. CLEAR. IOWR. O.C. MEM FIFO. IVN. S Q R. COMPLETE. STARTD. SCO DISPLAY. SCA DISPLAY. ORG 400H DISPLAY EQU BUFFER1 EQU BBBBh BUFFER2 EQU EEEEh CODE JSR INIT MAIN: JMP MAIN INIT: START DISPLAY

dmitri
Download Presentation

PD32

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PD32 IACK DISPLAY

  2. IO AB IO DB IO CB IRQ IACK START CLEAR IOWR O.C. MEM FIFO IVN S Q R COMPLETE STARTD SCO DISPLAY SCA DISPLAY

  3. ORG 400H DISPLAY EQU BUFFER1 EQU BBBBh BUFFER2 EQU EEEEh CODE JSR INIT MAIN: JMP MAIN INIT: START DISPLAY SETI RET DRIVER 0,1000h; Driver display PUSH… XORL R0,R0; AZZERO CONTATORE MOVW #128,R1; LIMITE MAX CONTATORE MOVL #BUFFER1,R2; INDIRIZZO INIZIALE BUFFER1 MOVL #BUFFFER2,R3; INDIRIZZO INIZIALE BUFFER2 LOOP: CMPW R0,R1; CONFRONTA CONTATORE CON 128 JZ DIS_OFF; SALTA SE R0=R1 ADDW #1,R0; AGGIORNO VALORE CONTATORE MOVB(R2)+,R4; METTO DATO CORRENTE DEL BUFFER1 IN R4 MOVB(R3)+,R5; METTO DATO CORRENTE DEL BUFFER2 IN R5 CMPB R4,R5; CONFRONTA GLI ELEMENTI JZ LOOP; SE SONO UGUALI CONTINUA CON IL CICLO JSR TRASFERISCI; SUBROUTINE PER IL TRASFERIMENTO DEI DATI A DISPLAY S TART DISPLAY JMP FINE DIS_OFF CLEAR DISPLAY FINE POP… RTI TRASFERISCI: PUSH.. XORL R0,R0; AZZERO IL REGISTRO CHE USO PER CONTATORE MOVW #128,R1; IMPOSTO VALORE PER IL CONFRONTO DEL CONTATORE MOVL #BUFFER1,R2; INDIRIZZO PER LO SPIAZZAMENTO NEL BUFFER DA SPOSTARE LOOP1: CMPW R0,R1 JZ FINE ADDW #1,R0 MOVB (R2)+,R3 OUTB R3, DISPLAY JMP LOOP RET

More Related