l02_t01.s

/*
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l02_t01.s
Assign to and add contents of registers.
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Author:  David Brown
ID:      999999999
Email:   dbrown@wlu.ca
Date:    2020-12-13
-------------------------------------------------------
*/
.org	0x1000	// Start at memory location 1000
.text  // Code section
.global _start
_start:

// Copy data from memory to registers
LDR	R3, =A;
LDR	R0, [R3]
LDR	R3, =B;
LDR	R1, [R3]
ADD	R2, R1, R0
// Copy data to memory
LDR	R3, =Result	// Assign address of Result to R3
STR	R2, [R3]	// Store contents of R2 to address in R3
// End program
_stop:
B _stop

.data	     // Initialized data section
A:
.word	4
B:
.word	8
.bss	    // Uninitialized data section
Result:
.space 4	// Set aside 4 bytes for result

.end