Optimise (?) multiplication implementation.

computationclub · Jan 13, 2015 · 2aa7605 · 2aa7605
1 parent d8d5cb1
commit 2aa7605
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/projects/04/mult/Mult.asm b/projects/04/mult/Mult.asm
@@ -9,10 +9,10 @@
 // set R2 to 0
 @R2
 M=0
-(LOOP)
 // jump to "end" if R0 is zero
 @R0
 D=M
+(LOOP)
 @END
 D;JEQ
 // add R1 to R2
@@ -22,7 +22,7 @@ D=M
 M=D+M
 // decrement R0
 @R0
-M=M-1
+MD=M-1
 // jump to "loop"
 @LOOP
 0;JMP

diff --git a/projects/04/mult/Mult.hack b/projects/04/mult/Mult.hack
@@ -9,8 +9,8 @@
 0000000000000010
 1111000010001000
 0000000000000000
-1111110010001000
-0000000000000010
+1111110010011000
+0000000000000100
 1110101010000111
 0000000000001110
 1110101010000111