> Manual commit: pa2.1 passed. debug ui bug fix(p command, lexer/parser...

>  Manual commit:  pa2.1 passed. debug ui bug fix(p command, lexer/parser error catching, better output); filled op_table; improved exec framework; implemented push/pop/call/sub/ret/xor... basic instructions; passing dummy.c;
U201614531
recolic
Linux RECOLICPC 5.4.2-arch1-1 #1 SMP PREEMPT Thu, 05 Dec 2019 12:29:40 +0000 x86_64 GNU/Linux
 20:22:59 up 3 days,  1:31,  1 user,  load average: 0.30, 0.44, 0.51
f9cda9daeeb1166e65d35adca96e5bb9dfa19d11