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Update assembly code

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This commit is contained in:
Aadhavan Srinivasan
2023-02-14 21:35:45 -06:00
parent be43e7d2a7
commit 49237ba657
1 changed files with 7 additions and 6 deletions
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13
mult3or5/main.s
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@@ -2,9 +2,11 @@
.section .text
func:
init:
MOV R0,#3 @Move 3 to R0
MOV R1,#5 @Move 5 to R1
MOV R2,#0 @Move 0 to R2
MOV R3,#1000 @The value to compare with
loop:
add5:
ADD R2,R2,R1 @Add R1 to R2
@@ -14,21 +16,20 @@ add3:
ADD R0,R0,#3 @Increment R0 by 3
check3:
CMP R0,#1000 @Is R0 less than 1000?
BLT check5 @If true, check 5
CMP R0,R3 @Is R0 less than 1000?
BGE rmv15 @If the multiple of 3 is greater than 1000, go to rmv15
check5:
CMP R1,#1000 @Is R1 less than 1000?
CMP R1,R3 @Is R1 less than 1000?
BLT loop @If true, go back to loop
BGE add3 @If the multiple of 5 reaches 1000, go to add3 - Continue adding multiples of 3, because those wouldn't have reached 1000 yet
BGE add3 @If the multiple of 5 reaches 1000, go back to add3 instead of loop - Continue adding multiples of 3, because those wouldn't have reached 1000 yet
rmv15:
MOV R0,#15 @The loop that follows is intended to subtract multiples of 15, which would have been added twice - 3, 6, 9, 12, 15, 18 ; 5, 10, 15, 20
MOV R0,#15 @The loop that follows is intended to subtract multiples of 15, which would have been added twice - 3, 6, 9, 12, [15], 18 ; 5, 10, [15], 20
loop2:
SUB R2,R2,R0
ADD R0,R0,#15
CMP R0,#1000
CMP R0,R3
BLT loop2