From f91fc53c91558fe1d8a249851dce8714fb17a246 Mon Sep 17 00:00:00 2001
From: Sven Riwoldt <sven.riwoldt@me.com>
Date: Mon, 27 Mar 2023 20:32:56 +0200
Subject: [PATCH] =?UTF-8?q?Ich=20scheitere=20daran=20den=20Screen=20zu=20f?=
 =?UTF-8?q?=C3=BCllen?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 projects/04/fill/Fill.asm        | 43 +++++++++++++++++++++++++++++++-
 projects/04/mult/Mult.asm        | 31 ++++++++++++++++++++++-
 projects/04/tests/Rechteck.asm   | 42 +++++++++++++++++++++++++++++++
 projects/04/tests/fillscreen.asm | 25 +++++++++++++++++++
 4 files changed, 139 insertions(+), 2 deletions(-)
 create mode 100644 projects/04/tests/Rechteck.asm
 create mode 100644 projects/04/tests/fillscreen.asm

diff --git a/projects/04/fill/Fill.asm b/projects/04/fill/Fill.asm
index 8f24a95..331e6db 100644
--- a/projects/04/fill/Fill.asm
+++ b/projects/04/fill/Fill.asm
@@ -11,4 +11,45 @@
 // "white" in every pixel;
 // the screen should remain fully clear as long as no key is pressed.
 
-// Put your code here.
\ No newline at end of file
+// Put your code here.
+
+(LOOP) // Abfrage des KBD-Speichers 
+    @KBD    //Adresse Keyboardspeicher
+    D=M     //Datenregister = Speicheradresse
+
+    @KPRESSED
+    D;JGT
+
+    @NOKPRESSED
+    0;JMP
+
+(KPRESSED)      // Taste wurde/wird gedrückt
+    @R0
+    M=-1        // 11111111111111111 --> black Pixel
+    @ONSCREEN
+    0;JMP
+
+(NOKPRESSED)    // keine Taste gedrückt
+    @R0         
+    M=0         // wieder auf 0 gesetzt
+    @ONSCREEN
+    0;JMP
+
+(ONSCREEN)
+    // erste Zeile von 16384 bis 16415 => 32 
+    // 31 * 256
+    // letztes Byte --> 8192  --> 16384 + 8192 =
+    @8191
+    D=A
+    @R1
+    M=D
+    //https://github.com/Olical/nand2tetris/blob/master/asm/fill/Fill.asm
+    (WEITER)
+    @R1
+    D=M
+    @WEITER
+    M=D
+    
+
+@LOOP
+0;JMP
\ No newline at end of file
diff --git a/projects/04/mult/Mult.asm b/projects/04/mult/Mult.asm
index d49da5c..9be9c05 100644
--- a/projects/04/mult/Mult.asm
+++ b/projects/04/mult/Mult.asm
@@ -9,4 +9,33 @@
 // This program only needs to handle arguments that satisfy
 // R0 >= 0, R1 >= 0, and R0*R1 < 32768.
 
-// Put your code here.
\ No newline at end of file
+@R2     //Ergebnisspeicher
+M=0     //init 
+
+@R1     //R1 dieser Wert dient als Schleifencounter
+D=M     //Inhalt nach M
+
+@i      //Zähler
+M=D     //i bekommt R1-Wert
+
+@END
+D;JEQ    
+
+(LOOP)
+@R0     //R0 ansprechen
+D=M     //Wert aus R0 in Datenspeicher
+
+@R2     //Ergebnisspeicher
+M=D+M   //Ergebnisspeicher = Datenspeicher + Ergebnisspeicher
+
+@i      //Zähler
+D=M     //D=Zähler
+D=D-1   //D-1
+M=D     //Zurückschreiben in Zähler
+
+@LOOP   //LOOP
+D;JGT   //D GRÖSSER 
+
+(END)   //END LOOP
+@END
+0;JMP
\ No newline at end of file
diff --git a/projects/04/tests/Rechteck.asm b/projects/04/tests/Rechteck.asm
new file mode 100644
index 0000000..d757a5b
--- /dev/null
+++ b/projects/04/tests/Rechteck.asm
@@ -0,0 +1,42 @@
+// Zeichnen eines Rechtecks
+// Breite = 16px, die Höhe ist in RAM[0]
+
+@R0
+D=M
+@n      // @16
+M=D     // n = RAM[0] 
+
+@i
+M=0     // i=0
+
+@SCREEN
+D=A
+@address
+M=D     // address = 16384 (Basisadresse des HACK-Screens)
+
+(LOOP)
+@i
+D=M
+@n
+D=D-M
+@END
+D;JGT // if i > n goto END
+
+
+@address
+A=M
+M=-1    // RAM[address] = -1 (16 pixels)
+
+@i
+M=M+1   // i=i+1
+@32
+D=A
+@address
+M=D+M   // address = address + 32
+
+@LOOP
+    0;JMP   // GOTO LOOP
+
+(END)
+    @END    //Programmende
+    0;JMP
\ No newline at end of file
diff --git a/projects/04/tests/fillscreen.asm b/projects/04/tests/fillscreen.asm
new file mode 100644
index 0000000..12e3c3e
--- /dev/null
+++ b/projects/04/tests/fillscreen.asm
@@ -0,0 +1,25 @@
+@SCREEN
+D=A
+@R15
+M=D
+
+@R0
+D=A
+@R14
+M=D
+
+(LOOP)
+@R14
+D=M
+@END
+D;JEQ
+
+@R15
+M=M+1
+@R14
+M=M-1
+@LOOP
+
+(END)
+@END
+0;JMP
\ No newline at end of file