feat: rename

project-4-machine-language/my-asm-files/my-max.asm

@@ -0,0 +1,68 @@
+
+// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/6/max/Max.asm
+
+// Computes R2 = max(R0, R1)  (R0,R1,R2 refer to RAM[0],RAM[1],RAM[2])
+// Usage: Before executing, put two values in R0 and R1.
+
+
+  // D = R0 - R1
+
+/*
+  @R0
+  D=M
+  @R1
+  D=D-M
+  // If (D > 0) goto ITSR0
+  @ITSR0
+  D;JGT
+  // Its R1
+  @R1
+  D=M
+  @OUTPUT_D
+  0;JMP
+(ITSR0)
+  @R0
+  D=M
+(OUTPUT_D)
+  @R2
+  M=D
+(END)
+  @END
+  0;JMP
+
+*/
+
+// Max
+// Takes two numbers and saves the highest of them
+// Get the sum of R0 & R1
+// Save it in R2
+// Get Value of R0
+// Compare it value of R1
+// Remember that the conditional can only be compared to zero.
+// GT. LS, EQ etc.. All to zero
+// Create a label and jump to it
+
+@R0
+D=M // Value of R0
+@R1
+D=D-M // New D(playground) is Old D(Value of R0) Minus Value of R1. Basically R0 - R1
+@ITSR0
+D;JGT // If D (R0 - R1) is greater than 0, then R0 is biger. Otherwise R1 or equal.
+// Else it R1
+@R1 // Get The Value of R1
+D=M
+@OUTPUT_D // And send it to the output section which is R2 variable
+0;JMP
+// The end Statements
+(ITSR0) // Jump here if R0
+@R0
+D=M // Set value of R0 to the playground variable.
+(OUTPUT_D) // End up here either way. Depending on value.
+@R2
+M=D // Set R2 to D either way. Just with or without the ITSR0 iteration
+(END) // Infinite loop - prevents CPU from executing undefined instructions.
+@END
+0;JMP // Infinite Jumping to end the program