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hyung-hwan 2005-09-11 13:17:35 +00:00
parent a5a65f1079
commit f69814e193
3 changed files with 71 additions and 27 deletions
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3
ase/stx/bytecode.c
View File

@ -1,5 +1,5 @@
/*
* $Id: bytecode.c,v 1.9 2005-08-11 16:16:04 bacon Exp $
* $Id: bytecode.c,v 1.10 2005-09-11 13:17:35 bacon Exp $
*/
#include <xp/stx/bytecode.h>
#include <xp/stx/class.h>
@ -23,6 +23,7 @@ int xp_stx_decode (xp_stx_t* stx, xp_word_t class)
return 0;
}
#include <xp/bas/stdio.h>
static void __dump_object (xp_stx_t* stx, xp_word_t obj)
{
if (XP_STX_IS_SMALLINT(obj)) {

85
ase/stx/interp.c
View File

@ -1,5 +1,5 @@
/*
* $Id: interp.c,v 1.6 2005-08-16 15:49:04 bacon Exp $
* $Id: interp.c,v 1.7 2005-09-11 13:17:35 bacon Exp $
*/
#include <xp/stx/interp.h>
@ -11,23 +11,42 @@
#define XP_STX_CONTEXT_SIZE 5
#define XP_STX_CONTEXT_STACK 0
#define XP_STX_CONTEXT_STACK_TOP 1
#define XP_STX_CONTEXT_METHOD 2
#define XP_STX_CONTEXT_RECEIVER 3
#define XP_STX_CONTEXT_IP 4
#define XP_STX_CONTEXT_RECEIVER 2
#define XP_STX_CONTEXT_PC 3
#define XP_STX_CONTEXT_METHOD 4
struct xp_stx_context_t
{
xp_stx_objhdr_t header;
xp_word_t stack;
xp_word_t stack_top;
xp_word_t method;
xp_word_t receiver;
xp_word_t ip;
xp_word_t pc;
xp_word_t method;
};
typedef struct xp_stx_context_t xp_stx_context_t;
xp_word_t xp_stx_new_context (xp_stx_t* stx, xp_word_t method, xp_word_t receiver)
/* data structure for internal vm operation */
struct vmcontext_t
{
/* from context */
xp_word_t* stack;
xp_word_t stack_size;
xp_word_t stack_top;
xp_word_t receiver;
xp_word_t pc;
/* from method */
xp_byte_t* bytecodes;
xp_word_t bytecode_size;
xp_word_t* literals;
};
typedef struct vmcontext_t vmcontext_t;
xp_word_t xp_stx_new_context (xp_stx_t* stx, xp_word_t receiver, xp_word_t method)
{
xp_word_t context;
xp_stx_context_t* ctxobj;
@ -39,37 +58,41 @@ xp_word_t xp_stx_new_context (xp_stx_t* stx, xp_word_t method, xp_word_t receive
ctxobj = (xp_stx_context_t*)XP_STX_OBJECT(stx,context);
ctxobj->stack = xp_stx_new_array (stx, 256); /* TODO: initial stack size */
ctxobj->stack_top = XP_STX_TO_SMALLINT(0);
ctxobj->method = method;
ctxobj->receiver = receiver;
ctxobj->ip = XP_STX_TO_SMALLINT(0);
ctxobj->pc = XP_STX_TO_SMALLINT(0);
ctxobj->method = method;
return context;
}
/*
static int __push_receiver_variable (
xp_stx_t* stx, int index, xp_stx_context_t* ctxobj);
static int __push_temporary_variable (
xp_stx_t* stx, int index, xp_stx_context_t* ctxobj);
*/
int xp_stx_interp (xp_stx_t* stx, xp_word_t context)
{
xp_stx_context_t* ctxobj;
xp_stx_method_t* mthobj;
xp_stx_byte_object_t* bytecodes;
xp_word_t bytecode_size;
xp_word_t* literals;
xp_word_t pc = 0;
int code, next, next2;
vmcontext_t vmc;
int code, next;
ctxobj = (xp_stx_context_t*)XP_STX_OBJECT(stx,context);
mthobj = (xp_stx_method_t*)XP_STX_OBJECT(stx,ctxobj->method);
literals = mthobj->literals;
bytecodes = XP_STX_BYTE_OBJECT(stx, mthobj->bytecodes);
bytecode_size = XP_STX_SIZE(stx, mthobj->bytecodes);
vmc.stack = XP_STX_DATA(stx,ctxobj->stack);
vmc.stack_size = XP_STX_SIZE(stx,ctxobj->stack);
vmc.receiver = ctxobj->receiver;
vmc.pc = ctxobj->pc;
while (pc < bytecode_size) {
code = bytecodes->data[pc++];
vmc.literals = mthobj->literals;
vmc.bytecodes = XP_STX_DATA(stx, mthobj->bytecodes);
vmc.bytecode_size = XP_STX_SIZE(stx, mthobj->bytecodes);
while (vmc.pc < vmc.bytecode_size) {
code = vmc.bytecodes[vmc.pc++];
if (code >= 0x00 && code <= 0x3F) {
/* stack - push */
@ -78,10 +101,10 @@ int xp_stx_interp (xp_stx_t* stx, xp_word_t context)
switch (what) {
case 0: /* receiver variable */
__push_receiver_variable (stx, index, ctxobj);
vmc.stack[vmc.stack_top++] = XP_STX_WORD_AT(stx, vmc.receiver, index);
break;
case 1: /* temporary variable */
__push_temporary_variable (stx, index, ctxobj);
//vmc.stack[vmc.stack_top++] = XP_STX_WORD_AT(stx, vmc.temporary, index);
break;
case 2: /* literal constant */
break;
@ -101,11 +124,20 @@ int xp_stx_interp (xp_stx_t* stx, xp_word_t context)
break;
}
}
/* more code .... */
else if (code >= 0xF0 && code <= 0xFF) {
/* primitive */
next = vmc.bytecodes[vmc.pc++];
__dispatch_primitive (next);
}
}
return 0;
}
/*
static int __push_receiver_variable (
xp_stx_t* stx, int index, xp_stx_context_t* ctxobj)
{
@ -137,3 +169,14 @@ static int __push_temporary_variable (
return 0;
}
*/
static int __dispatch_primitive (xp_stx_t* stx, int no, xp_stx_context_t* ctxobj)
{
switch (no) {
case 0:
break;
}
}

8
ase/stx/makefile.lcc
View File

@ -1,7 +1,7 @@
SRCS = stx.c memory.c object.c symbol.c class.c \
dict.c misc.c context.c name.c token.c parser.c bootstrp.c bytecode.c
OBJS = stx.obj memory.obj object.obj symbol.obj class.obj \
dict.obj misc.obj context.obj name.obj token.obj parser.obj bootstrp.obj bytecode.obj
SRCS = stx.c memory.c object.c symbol.c class.c dict.c misc.c \
context.c name.c token.c parser.c bootstrp.c bytecode.c interp.c
OBJS = stx.obj memory.obj object.obj symbol.obj class.obj dict.obj misc.obj\
context.obj name.obj token.obj parser.obj bootstrp.obj bytecode.obj interp.obj
OUT = xpstx.lib
CC = lcc