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Cross my hart and hope to fly, stick a cupcake in my eye

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Manuel Vögele
2015-06-23 14:12:19 +02:00
parent 0cfd8a82ed
commit a3ab855be3
1 changed files with 55 additions and 52 deletions
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39
Aufgabe4_Vögele_Wörner.X68
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@@ -4,36 +4,38 @@
* Date : 2015-06-23
* Description: Calculates the prime numbers from 3 to 100
*-----------------------------------------------------------
ORG $3000
ORG $3000 ; Start at address 3000
START: ; first instruction of program
* Put program code here
move.w #n_start, D0
move.l #list, A0
move.w #n_start, D0 ; Store the constant n_start into data register D0
move.l #list, A0 ; Store the address of the variable list into address register A0
LOOP_CHECK_PRIME:
move.w #2, D1
move.w #2, D1 ; Store the constant 2 into data register D1
LOOP_CHECK_NUMBER:
move.w D0, D2
divu D1, D2
clr.w D2
swap D2
cmp.w #0, D2
beq LOOP_FOOT_NEXT_PRIME
add.w #1, D1
move.w D1, D2
mulu D2, D2
cmp.w D0, D2
ble LOOP_CHECK_NUMBER
move.w D0, D2 ; Store the value in the register D0 into data register D2
move.w D0, (A0)+
divu D1, D2 ; Divide the value in the register D1 with the value in the register D2 and store the quotient in the right half and the remainder in the left half of data register D2
clr.w D2 ; Clear data register D2
swap D2 ; Swaps the first two and the last two bytes in data register D2
cmp.w #0, D2 ; Compare the constant 0 and the value in the register D2
beq LOOP_FOOT_NEXT_PRIME ; Jump to label LOOP_FOOT_NEXT_PRIME if the value in the register D2 == the constant 0
add.w #1, D1 ; Increase the value in the register D1 by 1
move.w D1, D2 ; Store the value in the register D1 into data register D2
mulu D2, D2 ; Calculate the square of the value in the register D2 and store the result in data register D2
cmp.w D0, D2 ; Compare the value in the register D0 and the value in the register D2
ble LOOP_CHECK_NUMBER ; Jump to label LOOP_CHECK_NUMBER if the value in the register D2 <= the value in the register D0
move.w D0, (A0)+ ; Store the value in the register D0 into the memory at the address stored in address register A0. Afterwards increase the address in the register A0 by 2
LOOP_FOOT_NEXT_PRIME:
add.w #1, D0
add.w #1, D0 ; Increase the value in the register D0 by 1
cmp #n_end, D0
ble LOOP_CHECK_PRIME
ble LOOP_CHECK_PRIME ; Jump to label LOOP_CHECK_PRIME if the value in the register D0 <= the constant n_end
SIMHALT ; halt simulator
@@ -50,3 +52,4 @@ list ds.w 100
*~Font size~10~
*~Tab type~1~
*~Tab size~4~