Stack CPU is a simulation program for Stack CPU :D

Opcode list
LIT
@
!
DROP
DUP
OVER
SWAP
+

AND
OR
XOR
IF
CALL
EXIT
HALT

R
R>

Number Examples (x00 - xFF)
Bin: b1010, b1, B0010
Dec: 15, 0, -9, 126
Hex: 0x54, x1A, 0xff, XAb, xd6