Project 04, leider war Fill nicht meins
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projects/04/abgabe/Fill.asm
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78
projects/04/abgabe/Fill.asm
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// This file is part of www.nand2tetris.org
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// and the book "The Elements of Computing Systems"
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// by Nisan and Schocken, MIT Press.
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// File name: projects/04/Fill.asm
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// Runs an infinite loop that listens to the keyboard input.
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// When a key is pressed (any key), the program blackens the screen,
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// i.e. writes "black" in every pixel;
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// the screen should remain fully black as long as the key is pressed.
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// When no key is pressed, the program clears the screen, i.e. writes
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// "white" in every pixel;
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// the screen should remain fully clear as long as no key is pressed.
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// Put your code here.
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@8192 // 32*256 --> 32 16er pro Zeile
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D=A
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@ENDPOS // in @16
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M=D
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(LOOP)
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@SCREEN //Screen-Einstiegsadresse
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D=A
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@ScreenStart //@SCREEN 16384 --> @17
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M=D
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@i //Zähler = 0 18
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M=0
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@KBD //24576
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D=M //Tastatureingabe ?
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@WEISS
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D; JEQ //WEISS WENN D == 0
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@SCHWARZ //SPRINGE ZU SCHWARZ
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D; JNE //WENN NICHT 0
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(SCHWARZ)
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@ENDPOS
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D=M
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@i
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D=D-M //ENDPOS -1 = 0 ? DANN ZU LOOP
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@LOOP
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D;JEQ
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@ScreenStart
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A=M
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M=-1 //SETZE -1 == SCHWARZ
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@i
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M=M+1 //i++
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@ScreenStart
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M=M+1
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@SCHWARZ
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0;JMP
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(WEISS)
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@ENDPOS
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D=M
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@i
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D=D-M //ENDPOS -1 = 0 ? DANN ZU LOOP
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@LOOP
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D;JEQ
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@ScreenStart
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A=M
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M=0 //SETZE 0 == WEISS
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@i
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M=M+1 //i++
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@ScreenStart
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M=M+1
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@WEISS
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0;JMP
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41
projects/04/abgabe/Mult.asm
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41
projects/04/abgabe/Mult.asm
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// This file is part of www.nand2tetris.org
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// and the book "The Elements of Computing Systems"
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// by Nisan and Schocken, MIT Press.
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// File name: projects/04/Mult.asm
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// Multiplies R0 and R1 and stores the result in R2.
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// (R0, R1, R2 refer to RAM[0], RAM[1], and RAM[2], respectively.)
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//
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// This program only needs to handle arguments that satisfy
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// R0 >= 0, R1 >= 0, and R0*R1 < 32768.
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@R2 //Ergebnisspeicher
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M=0 //init
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@R1 //R1 dieser Wert dient als Schleifencounter
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D=M //Inhalt nach M
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@i //Zähler
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M=D //i bekommt R1-Wert
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@END
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D;JEQ
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(LOOP)
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@R0 //R0 ansprechen
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D=M //Wert aus R0 in Datenspeicher
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@R2 //Ergebnisspeicher
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M=D+M //Ergebnisspeicher = Datenspeicher + Ergebnisspeicher
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@i //Zähler
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D=M //D=Zähler
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D=D-1 //D-1
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M=D //Zurückschreiben in Zähler
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@LOOP //LOOP
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D;JGT //D GRÖSSER
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(END) //END LOOP
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@END
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0;JMP
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BIN
projects/04/abgabe/project4.zip
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BIN
projects/04/abgabe/project4.zip
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Binary file not shown.
BIN
projects/04/fill/Archiv.zip
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BIN
projects/04/fill/Archiv.zip
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Binary file not shown.
@@ -13,56 +13,66 @@
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// Put your code here.
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(LOOP) // Abfrage des KBD-Speichers
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@KBD //Adresse Keyboardspeicher
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D=M //Datenregister = Speicheradresse
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@8192 // 32*256 --> 32 16er pro Zeile
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D=A
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@ENDPOS // in @16
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M=D
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@KPRESSED
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D;JGT
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(LOOP)
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@SCREEN //Screen-Einstiegsadresse
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D=A
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@ScreenStart // @SCREEN 16384 --> @17
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M=D
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@NOKPRESSED
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0;JMP
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@i // Zähler = 0 18
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M=0
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(KPRESSED) // Taste wurde/wird gedrückt
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@R0
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M=-1 // 11111111111111111 --> black Pixel
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@ONSCREEN
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0;JMP
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@KBD //24576
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D=M // Tastatureingabe ?
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(NOKPRESSED) // keine Taste gedrückt
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@R0
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M=0 // wieder auf 0 gesetzt
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@ONSCREEN
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0;JMP
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@WEISS
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D; JEQ // WEISS WENN D == 0
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@SCHWARZ // SPRINGE ZU SCHWARZ
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D; JNE // WENN NICHT 0
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(ONSCREEN)
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// erste Zeile von 16384 bis 16415 => 32
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// 31 * 256
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// letztes Byte --> 8192 --> 16384 + 8192 somit 8191
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@8191 // Eingabe eines konstanten Wertes
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D=A // A= 8191, Übergabe an D
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@R1
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M=D // R1 = 8191
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//https://github.com/Olical/nand2tetris/blob/master/asm/fill/Fill.asm
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(PRINT)
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@SCREEN
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(SCHWARZ)
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@ENDPOS
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D=M
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@counter
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@i
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D=D-M // ENDPOS -1 = 0 ? DANN ZU LOOP
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@LOOP
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D;JEQ
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@ScreenStart
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A=M
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M=-1 // SETZE -1 == SCHWARZ
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@i
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M=M+1 // i++
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@ScreenStart
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M=M+1
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@SCHWARZ
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0;JMP
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(WEISS)
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@ENDPOS
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D=M
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@i
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D=D-M // ENDPOS -1 = 0 ? DANN ZU LOOP
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@LOOP
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D;JEQ
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M=D+1
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@ScreenStart
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A=M
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M=0 // SETZE 0 == WEISS
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@i
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M=M+1 // i++
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@ScreenStart
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M=M+1
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//Schleife, setze ein Register auf 0, dann addiere das zum @SCREEN. Setze die entstandene Adresse auf -1. Nun vergleiche den Zähler mit R1, wenn ungleich dann erhöhe um 1 und durchlaufe die Schleife abermals.
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@ONSCREEN
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@LOOP
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0;JMP
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@WEISS
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0;JMP
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