Add solutions for part 1

2020-11-15 13:57:48 -05:00
parent e4f9fd2682
commit 742db6d102
479 changed files with 202980 additions and 13 deletions
--- a/projects/07/MemoryAccess/PointerTest/PointerTest.asm
+++ b/projects/07/MemoryAccess/PointerTest/PointerTest.asm
@@ -0,0 +1,189 @@
+// push constant 3030
+@3030
+D = A
+@SP
+A = M
+M = D
+@SP
+M = M + 1
+
+// pop pointer THIS
+@SP
+A = M
+A = A - 1
+D = M
+@SP
+M = M - 1
+@THIS
+M = D
+// ^ pop into THIS
+
+// push constant 3040
+@3040
+D = A
+@SP
+A = M
+M = D
+@SP
+M = M + 1
+
+// pop pointer THAT
+@SP
+A = M
+A = A - 1
+D = M
+@SP
+M = M - 1
+@THAT
+M = D
+// ^ pop into THAT
+
+// push constant 32
+@32
+D = A
+@SP
+A = M
+M = D
+@SP
+M = M + 1
+
+// pop this 2
+@2
+D = A
+@THIS
+A = M
+D = D + A
+@R13
+M = D
+// ^ R13 = this + index
+@SP
+A = M
+A = A - 1
+D = M
+@SP
+M = M - 1
+// ^ pop into D
+@R13
+A = M
+M = D
+// ^ *R13 = D
+
+// push constant 46
+@46
+D = A
+@SP
+A = M
+M = D
+@SP
+M = M + 1
+
+// pop that 6
+@6
+D = A
+@THAT
+A = M
+D = D + A
+@R13
+M = D
+// ^ R13 = that + index
+@SP
+A = M
+A = A - 1
+D = M
+@SP
+M = M - 1
+// ^ pop into D
+@R13
+A = M
+M = D
+// ^ *R13 = D
+
+// push pointer THIS
+@THIS
+D = M
+@SP
+A = M
+M = D
+@SP
+M = M + 1
+// ^ push THIS
+
+// push pointer THAT
+@THAT
+D = M
+@SP
+A = M
+M = D
+@SP
+M = M + 1
+// ^ push THAT
+
+// add
+@SP
+A = M
+A = A - 1
+A = A - 1
+D = M
+A = A + 1
+D = D + M
+A = A - 1
+M = D
+@SP
+M = M - 1
+
+// push this 2
+@2
+D = A
+@THIS
+A = M
+A = D + A
+D = M
+// ^ D = *(LCL + index)
+@SP
+A = M
+M = D
+@SP
+M = M + 1
+// ^ push D
+
+// sub
+@SP
+A = M
+A = A - 1
+A = A - 1
+D = M
+A = A + 1
+D = D - M
+A = A - 1
+M = D
+@SP
+M = M - 1
+
+// push that 6
+@6
+D = A
+@THAT
+A = M
+A = D + A
+D = M
+// ^ D = *(LCL + index)
+@SP
+A = M
+M = D
+@SP
+M = M + 1
+// ^ push D
+
+// add
+@SP
+A = M
+A = A - 1
+A = A - 1
+D = M
+A = A + 1
+D = D + M
+A = A - 1
+M = D
+@SP
+M = M - 1
+