Differences
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lehrkraefte:blc:informatik:ffprg2-2018:ffprg2-2018 [2019/01/18 17:19] Ivo Blöchliger [Hackme Code] |
lehrkraefte:blc:informatik:ffprg2-2018:ffprg2-2018 [2019/01/18 17:19] Ivo Blöchliger [Busy Beaver] |
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| Line 143: | Line 143: | ||
| ===== Busy Beaver ===== | ===== Busy Beaver ===== | ||
| <code asm> | <code asm> | ||
| - | ; Dieses Programm gibt den String rechtsbündig ab | + | start: |
| - | ; Adresse 250 aus. | + | MOV B, 255 |
| - | ; | + | |
| + | humpfdidumpf: | ||
| + | MOV A, [B] | ||
| + | INC A | ||
| + | MOV [B], A | ||
| + | JNC humpfdidumpf | ||
| + | while: | ||
| + | DEC B | ||
| + | CMP B, ende | ||
| + | JE ende | ||
| + | MOV A, [B] | ||
| + | INC A | ||
| + | MOV [B], A | ||
| + | JC while | ||
| JMP start | JMP start | ||
| - | DB " | + | ende: |
| - | ; | + | |
| - | ; Register | + | |
| - | ; A Ausgabe-Adresse | + | |
| - | ; B Position in DB | + | |
| - | ; C temporär | + | |
| - | + | ||
| - | start: MOV A,250 ; Adresse Ausgabe (letzter Buchstabe) | + | |
| - | MOV B, start ; Adresse+1 vom letzten Buchstaben | + | |
| - | DEC B ; B vermindern | + | |
| - | CALL ausgabe | + | |
| HLT | HLT | ||
| - | ausgabe: | ||
| - | MOV C,[B] ; Buchstabe in C | ||
| - | MOV [A],C ; Ausgabe | ||
| - | DEC A ; A vermindern | ||
| - | DEC B ; B vermindern | ||
| - | CMP B,1 ; ist B am Anfang angekommen? | ||
| - | JNE ausgabe ; sonst wiederholen | ||
| - | RET | ||
| </ | </ | ||