7126603_ramesh_b2
1
ORG $100: this code commanded assembler to set the location counter to 100. PORTB EQU $1004: this is memory address which is allotted to the I/O port B. START LDAA #$34:34 is moved from memory location to register A. XAT: it represented as a label. LDAA $567: the memory location content 4567 is loaded in reg A. CLRA: this is the clear command to clear the value in Register and set the value as 0. STAA PORT B: the contents from register A are copied to the Port B which address location is specified in earlier. JMP XAT: the upcoming instruction is jumped to the label XAT. ‘
-
Upload
samramesheee -
Category
Documents
-
view
1 -
download
0
description
ref
Transcript of 7126603_ramesh_b2
ORG $100: this code commanded assembler to set the location counter to 100.PORTB EQU $1004: this is memory address which is allotted to the I/O port B.START LDAA #$34:34 is moved from memory location to register A.
XAT: it represented as a label.LDAA $567: the memory location content 4567 is loaded in reg A.CLRA: this is the clear command to clear the value in Register and set the value as 0.STAA PORT B: the contents from register A are copied to the Port B which address location is specified in earlier.JMP XAT: the upcoming instruction is jumped to the label XAT. ‘
