Vaja 03 popravki

sprotne_naloge/naloga_04/naloga_04.txt

@@ -0,0 +1,102 @@
+1. vaja
+
+.text
+.org 	0x20
+stev1:	.word	0x00000001
+stev2:	.word	0x00000002
+
+.global _start
+_start:
+	
+	adr		r0, stev1
+	
+	ldrh	r1, [r0]
+	ldrh 	r2, [r0, #4]
+	
+	str		r2, [r0]
+	str		r1, [r0, #4]
+
+
+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]
+