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hyung-hwan 2005-09-13 15:56:23 +00:00
parent d652165472
commit 92d04986d6
3 changed files with 170 additions and 156 deletions
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318
ase/stx/interp.c
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@ -1,5 +1,5 @@
/* /*
* $Id: interp.c,v 1.14 2005-09-13 12:10:23 bacon Exp $ * $Id: interp.c,v 1.15 2005-09-13 15:56:23 bacon Exp $
*/ */
#include <xp/stx/interp.h> #include <xp/stx/interp.h>
@ -55,26 +55,179 @@ struct process_t
typedef struct process_t process_t; typedef struct process_t process_t;
static int __run_process (xp_stx_t* stx, process_t* proc);
static int __push_to_stack (xp_stx_t* stx,
process_t* proc, xp_word_t what, xp_word_t index);
static int __store_from_stack (xp_stx_t* stx,
process_t* proc, xp_word_t what, xp_word_t index);
static int __send_to_self (xp_stx_t* stx,
process_t* proc, xp_word_t nargs, xp_word_t selector);
static int __return_from_message (xp_stx_t* stx, process_t* proc);
static int __dispatch_primitive (xp_stx_t* stx, process_t* proc, xp_word_t no); static int __dispatch_primitive (xp_stx_t* stx, process_t* proc, xp_word_t no);
static int __init_process (process_t* proc, xp_word_t stack_size) int xp_stx_interp (xp_stx_t* stx, xp_word_t receiver, xp_word_t method)
{ {
/* don't use the object model for process */ process_t proc;
proc->stack = (xp_word_t*)xp_malloc (stack_size * xp_sizeof(xp_word_t)); xp_stx_method_t* mthobj;
if (proc->stack == XP_NULL) return -1; xp_word_t i;
int n;
proc->stack_size = stack_size; // TODO: size of process stack.
proc->stack_base = 0; proc.stack = (xp_word_t*)xp_malloc (10000 * xp_sizeof(xp_word_t));
proc->stack_top = 0; if (proc.stack == XP_NULL) {
xp_printf (XP_TEXT("out of memory in xp_stx_interp\n"));
return -1;
}
proc.stack_size = 10000;
proc.stack_base = 0;
proc.stack_top = 0;
mthobj = (xp_stx_method_t*)XP_STX_OBJECT(stx,method);
xp_assert (mthobj != XP_NULL);
proc.literals = mthobj->literals;
proc.bytecodes = XP_STX_DATA(stx, mthobj->bytecodes);
proc.bytecode_size = XP_STX_SIZE(stx, mthobj->bytecodes);
/* TODO: disable the method with arguments for start-up */
proc.argcount = XP_STX_FROM_SMALLINT(mthobj->argcount);
proc.tmpcount = XP_STX_FROM_SMALLINT(mthobj->tmpcount);
proc.method = method;
proc.pc = 0;
proc.stack_base = proc.stack_top;
/* push the receiver */
proc.stack[proc.stack_top++] = receiver;
/* push arguments */
for (i = 0; i < proc.argcount; i++) {
proc.stack[proc.stack_top++] = stx->nil;
}
/* secure space for temporaries */
for (i = 0; i < proc.tmpcount; i++)
proc.stack[proc.stack_top++] = stx->nil;
/* push dummy pc */
proc.stack[proc.stack_top++] = 0;
/* push dummy method */
proc.stack[proc.stack_top++] = stx->nil;
/* push dummy previous stack base */
proc.stack[proc.stack_top++] = 0;
n = __run_process (stx, &proc);
xp_free (proc.stack);
return n;
}
static int __run_process (xp_stx_t* stx, process_t* proc)
{
int code, next, next2;
while (proc->pc < proc->bytecode_size) {
code = proc->bytecodes[proc->pc++];
#ifdef DEBUG
xp_printf (XP_TEXT("code = 0x%x\n"), code);
#endif
if (code >= 0x00 && code <= 0x3F) {
/* stack - push */
__push_to_stack (stx, proc, code >> 4, code & 0x0F);
}
else if (code >= 0x40 && code <= 0x5F) {
/* stack - store */
int what = code >> 4;
int index = code & 0x0F;
__store_from_stack (stx, proc, code >> 4, code & 0x0F);
}
/* more here .... */
else if (code == 0x70) {
next = proc->bytecodes[proc->pc++];
//xp_printf (XP_TEXT("%d, %d\n"), next >> 5, next & 0x1F);
if (__send_to_self (stx, proc,
next >> 5, proc->literals[next & 0x1F]) == -1) break;
//xp_printf (XP_TEXT("done %d, %d\n"), next >> 5, next & 0x1F);
}
else if (code == 0x71) {
/* send to super */
next = proc->bytecodes[proc->pc++];
//__send_to_super (stx,
// proc, next >> 5, proc->literals[next & 0x1F]);
}
else if (code == 0x72) {
/* send to self extended */
next = proc->bytecodes[proc->pc++];
next2 = proc->bytecodes[proc->pc++];
if (__send_to_self (stx, proc,
next >> 5, proc->literals[next2]) == -1) break;
}
else if (code == 0x73) {
/* send to super extended */
next = proc->bytecodes[proc->pc++];
next2 = proc->bytecodes[proc->pc++];
//__send_to_super (stx,
// proc, next >> 5, proc->literals[next2]);
}
/* more code .... */
else if (code == 0x7C) {
/* return from message */
if (__return_from_message (stx, proc) == -1) break;
}
else if (code >= 0xF0 && code <= 0xFF) {
/* primitive */
next = proc->bytecodes[proc->pc++];
__dispatch_primitive (stx, proc, ((code & 0x0F) << 8) | next);
}
}
return 0; return 0;
} }
static void __deinit_process (process_t* proc) static int __push_to_stack (xp_stx_t* stx,
process_t* proc, xp_word_t what, xp_word_t index)
{ {
/* TODO: */ switch (what) {
case 0: /* receiver variable */
proc->stack[proc->stack_top++] =
XP_STX_WORD_AT(stx, proc->stack[proc->stack_base], index);
break;
case 1: /* temporary variable */
proc->stack[proc->stack_top++] =
proc->stack[proc->stack_base + 1 + index];
break;
case 2: /* literal constant */
proc->stack[proc->stack_top++] = proc->literals[index];
break;
case 3: /* literal variable */
break;
}
return 0;
} }
static int __store_from_stack (xp_stx_t* stx,
process_t* proc, xp_word_t what, xp_word_t index)
{
switch (what) {
case 4: /* receiver variable */
XP_STX_WORD_AT(stx,proc->stack[proc->stack_base],index) = proc->stack[--proc->stack_top];
break;
case 5: /* temporary location */
proc->stack[proc->stack_base + 1 + index] = proc->stack[--proc->stack_top];
break;
}
return 0;
}
static int __send_to_self (xp_stx_t* stx, static int __send_to_self (xp_stx_t* stx,
process_t* proc, xp_word_t nargs, xp_word_t selector) process_t* proc, xp_word_t nargs, xp_word_t selector)
@ -126,7 +279,7 @@ xp_printf (XP_TEXT("cannot find the method....\n"));
return 0; return 0;
} }
static int __return_from_message (xp_stx_t* stx, process_t* proc, int code) static int __return_from_message (xp_stx_t* stx, process_t* proc)
{ {
xp_word_t method, pc, stack_base; xp_word_t method, pc, stack_base;
xp_stx_method_t* mthobj; xp_stx_method_t* mthobj;
@ -159,148 +312,6 @@ static int __return_from_message (xp_stx_t* stx, process_t* proc, int code)
return 0; return 0;
} }
static int __run_process (xp_stx_t* stx, process_t* proc)
{
int code, next, next2;
while (proc->pc < proc->bytecode_size) {
code = proc->bytecodes[proc->pc++];
#ifdef DEBUG
xp_printf (XP_TEXT("code = 0x%x\n"), code);
#endif
if (code >= 0x00 && code <= 0x3F) {
/* stack - push */
int what = code >> 4;
int index = code & 0x0F;
switch (what) {
#if 0
case 0: /* receiver variable */
proc->stack[proc->stack_top++] = XP_STX_WORD_AT(stx, proc->receiver, index);
break;
#endif
case 1: /* temporary variable */
proc->stack[proc->stack_top++] =
proc->stack[proc->stack_base + 1 + index];
break;
case 2: /* literal constant */
proc->stack[proc->stack_top++] = proc->literals[index];
break;
case 3: /* literal variable */
break;
}
}
else if (code >= 0x40 && code <= 0x5F) {
/* stack - store */
int what = code >> 4;
int index = code & 0x0F;
switch (what) {
#if 0
case 4: /* receiver variable */
XP_STX_WORD_AT(stx,proc->receiver,index) = proc->stack[--proc->stack_top];
break;
#endif
case 5: /* temporary location */
proc->stack[proc->stack_base + 1 + index] = proc->stack[--proc->stack_top];
break;
}
}
/* more here .... */
else if (code == 0x70) {
next = proc->bytecodes[proc->pc++];
//xp_printf (XP_TEXT("%d, %d\n"), next >> 5, next & 0x1F);
if (__send_to_self (stx, proc,
next >> 5, proc->literals[next & 0x1F]) == -1) break;
//xp_printf (XP_TEXT("done %d, %d\n"), next >> 5, next & 0x1F);
}
else if (code == 0x71) {
/* send to super */
next = proc->bytecodes[proc->pc++];
//__send_to_super (stx,
// proc, next >> 5, proc->literals[next & 0x1F]);
}
else if (code == 0x72) {
/* send to self extended */
next = proc->bytecodes[proc->pc++];
next2 = proc->bytecodes[proc->pc++];
if (__send_to_self (stx, proc,
next >> 5, proc->literals[next2]) == -1) break;
}
else if (code == 0x73) {
/* send to super extended */
next = proc->bytecodes[proc->pc++];
next2 = proc->bytecodes[proc->pc++];
//__send_to_super (stx,
// proc, next >> 5, proc->literals[next2]);
}
/* more code .... */
else if (code == 0x7C) {
/* return from message */
if (__return_from_message (stx, proc, code) == -1) break;
}
else if (code >= 0xF0 && code <= 0xFF) {
/* primitive */
next = proc->bytecodes[proc->pc++];
__dispatch_primitive (stx, proc, ((code & 0x0F) << 8) | next);
}
}
return 0;
}
int xp_stx_interp (xp_stx_t* stx, xp_word_t receiver, xp_word_t method)
{
process_t proc;
xp_stx_method_t* mthobj;
xp_word_t i;
// TODO: size of process stack.
if (__init_process(&proc, 10000) == -1) return -1;
mthobj = (xp_stx_method_t*)XP_STX_OBJECT(stx,method);
xp_assert (mthobj != XP_NULL);
proc.literals = mthobj->literals;
proc.bytecodes = XP_STX_DATA(stx, mthobj->bytecodes);
proc.bytecode_size = XP_STX_SIZE(stx, mthobj->bytecodes);
/* TODO: disable the method with arguments for start-up */
proc.argcount = XP_STX_FROM_SMALLINT(mthobj->argcount);
proc.tmpcount = XP_STX_FROM_SMALLINT(mthobj->tmpcount);
proc.method = method;
proc.pc = 0;
proc.stack_base = proc.stack_top;
/* push the receiver */
proc.stack[proc.stack_top++] = receiver;
/* push arguments */
for (i = 0; i < proc.argcount; i++) {
proc.stack[proc.stack_top++] = stx->nil;
}
/* secure space for temporaries */
for (i = 0; i < proc.tmpcount; i++)
proc.stack[proc.stack_top++] = stx->nil;
/* push dummy pc */
proc.stack[proc.stack_top++] = 0;
/* push dummy method */
proc.stack[proc.stack_top++] = stx->nil;
/* push dummy previous stack base */
proc.stack[proc.stack_top++] = 0;
return __run_process (stx, &proc);
}
static int __dispatch_primitive (xp_stx_t* stx, process_t* proc, xp_word_t no) static int __dispatch_primitive (xp_stx_t* stx, process_t* proc, xp_word_t no)
{ {
@ -322,4 +333,5 @@ static int __dispatch_primitive (xp_stx_t* stx, process_t* proc, xp_word_t no)
break; break;
} }
return 0;
} }

6
ase/test/stx/test.st
View File

@ -1,11 +1,13 @@
main main
| a |
<primitive: 0> <primitive: 0>
"a := 10. "a := 10.
#abc xxx. #abc xxx.
#abc xxx: 1. #abc xxx: 1.
b := 3.
^nil " ^nil "
#abc print: 123 and: 2345. a := #abc print: 123 and: 2345.
#abc print: a and: a.
1234567.
^nil ^nil

2
ase/test/stx/test1.st
View File

@ -4,4 +4,4 @@ print: a1 and: a2
t1 := #abcdefg. t1 := #abcdefg.
"a1 := 2341 arguments are not assignable" "a1 := 2341 arguments are not assignable"
t1 prim2: a2. t1 prim2: a2.
^nil. ^9999.