Implemented start of flagpole compiler and a few new things here and there for said compiler

tests/cmp.asm

@@ -0,0 +1,19 @@
+include "fvm.inc"
+
+org 0x4000000000000000
+  MovI64 r95, UART_TX
+  MovI64 r2, 8
+  MovI64 r3, 2
+  MovI64 r4, 0x30 ; ascii for 0
+  Cmp64 r2, r3
+  JmpIP Greater
+LessEq:
+  AddR64 r3, r4
+  St8 r3, r95
+  Jmp Ending
+Greater:
+  AddR64 r2, r4
+  ; MovI64 r2, 0x38
+  St8 r2, r95
+Ending:
+  Halt

tests/fvm.inc

@@ -236,6 +236,18 @@ macro St8 dst, addr
   db addr
 end macro
 
+macro Ld64 dst, addr
+  db 0x8D
+  db dst
+  db addr
+end macro
+
+macro St64 dst, addr
+  db 0x8C
+  db dst
+  db addr
+end macro
+
 macro AddR64 dst, src
   db 0x6E
   db dst
@@ -266,6 +278,12 @@ macro ModR64 dst, src
   db src
 end macro
 
+macro Cmp64 A, B
+  db 0x7D
+  db A
+  db B
+end macro
+
 macro RSetF reg
   db 0x42
   db reg
@@ -291,12 +309,22 @@ macro JmpIZ addr
   JmpRIZ 127
 end macro
 
-macro callR addr
+macro JmpRIP addr
+  db 0xC3
+  db addr
+end macro
+
+macro JmpIP addr
+  MovI64 127, addr
+  JmpRIP 127
+end macro
+
+macro CallR addr
   db 0x46
   db addr
 end macro
 
-macro call val
+macro Call val
   MovI64 127, val
   db 0x46
   db 127