TDT4258/ex1/test.s

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ArmAsm
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2022-12-19 18:06:38 +01:00
.global _start
loop:
// This example iteratively multiplies r2*r1
cmp r0, #0 // Compare r0 to 0
bne .+8 // If not equal branch OVER next instruction
bx lr // Branch back to who called loop
add r2, r2, r1 // Add r1 to r2 and put it on r2
sub r0, r0, #1 // Substract 1 from r0 and put it on r0
b loop // branch back to beginning of loop
_start:
// Here your execution starts
mov r0, #10 // Decimal 10 o register r0
mov r1, #2 // Decimal 2 to register r1
mov r2, #0 // Decimal 0 to register r2
bl loop // Branch and link to loop
b _exit
_exit:
// Branch to itelf
b .
.data
.align
// This section is evaluated before execution to put things into
// memory that are required for the execution of your application
.end