stx(1)  xpkit 

NAME
	stx - xpkit embeddable smalltalk system

SYNOPSIS
	stx [-f imageFile] MainClass

DESCRIPTION
	The virtual machine executes "MainClass main" on start-up.


method 1.
push lookup_class(#MainClass) -> receiver.
send a unary(no argument) message with the selector #main.
return the returned value from main and exits.

method 2. - take a command parameter
push lookup_class(#MainClass) -> receiver.
push argc as an argument.
push argv as an argument.
send a double-argument message the the selector #main:withArgv:.
return the returned value from #main:withArgv and exits.


AUTHOR(S)
	Chung, Hyung-Hwan (bacon@piowave.com) is the sole designer and implementer of stx.

BUG REPORTS
	Report bugs to bacon@piowave.com if you find any bugs. but make sure that it is really a bug before you report it.

COPYRIGHT
	Copyright(c) 2005 bacon@piowave.com

SEE ALSO
	xpkit(7)


-------------------

/*
   &unsupportedByte,      //--- 00
   &bytePushInstance,     //--- 01
   &bytePushArgument,     //--- 02
   &bytePushTemporary,    //--- 03
   &bytePushLiteral,      //--- 04
   &bytePushConstant,     //--- 05
   &byteAssignInstance,   //--- 06
   &byteAssignTemporary,  //--- 07
   &byteMarkArguments,    //--- 08
   &byteSendMessage,      //--- 09
   &byteSendUnary,        //--- 10
   &byteSendBinary,       //--- 11
   &unsupportedByte,      //--- 12
   &byteDoPrimitive,      //--- 13
   &unsupportedByte,      //--- 14
   &byteDoSpecial         //--- 15


* Directly access by byte codes
> the receiver and arguments of the invoking message 
> the values of the receiver's instance variables 
> the values of any temporary variables required by the method 
> seven special constants (true, false, nil, -1, 0, 1, and 2) 
> 32 special message selectors 

* contained in literal frame.
> shared variables (global, class, and pool) 
> most literal constants (numbers, characters, strings, arrays, and symbols) 
> most message selectors (those that are not special) 

PushInstance
PushArgument -> normal arguments plus self/super(0)
PushTemporary
PushConstant -> nil, true, false, etc....
PushLiteral -> global variables, literal constants... -> access literal frame

AssignInstance
AssignTemporary
*/

#define PUSH_VARIABLE   0x01
#define PUSH_ARGUMENT   0x02
#define PUSH_TEMPORARY  0x03
#define PUSH_LITERAL    0x04