ra/naloga_04/naloga_04.txt

1. vaja

.text
.org 0x20
stev1:  .word 0x00000001
stev2:  .word 0x00000002

.global _start
_start:

  adr   r0, stev1
  ldrh  r1, [r0]

  adr   r0, stev2
  ldrh  r2, [r0]

  adr   r0, stev1
  str   r2, [r0]

  adr   r0, stev2
  str   r1, [r0]


2. vaja

.text
.org 0x20

tabela: .space  5

.align

.global _start
_start:

  adr   r0, tabela

  mov   r1, #0xffffffff

  str   r1, [r0]
  strb  r1, [r0, #4]


3. vaja

.text
.org 	0x20
	
tabela:	.space	6
	
.align

.global _start
_start:

	adr		r0, tabela
	
	ldr		r1, =0x04030201
	str		r1, [r0]
	
	ldrh	r1, =0x0605
	str		r1, [r0, #4]

	@ zamenjaj 1. <-> 6.
	ldrb	r1, [r0]
	ldrb	r2, [r0, #5]
	strb	r2, [r0]
	strb	r1, [r0, #5]
	
	@ zamenjaj 2. <-> 5.
	ldrb	r1, [r0, #1]
	ldrb	r2, [r0, #4]
	strb	r2, [r0, #1]
	strb	r1, [r0, #4]
		
	@ zamenjaj 3. <-> 4.
	ldrb	r1, [r0, #2]
	ldrb	r2, [r0, #3]
	strb	r2, [r0, #2]
	strb	r1, [r0, #3]


4. vaja

.text
.org 	0x20
	
stev1: .word	0x01020304
	
.align

.global _start
_start:

	adr		r0, stev1
	
	ldrb	r1, [r0]
	ldrb	r2, [r0, #3]
	strb	r2, [r0]
	strb	r1, [r0, #3]
		
	ldrb	r1, [r0, #1]
	ldrb	r2, [r0, #2]
	strb	r2, [r0, #1]
	strb	r1, [r0, #2]