*** empty log message ***
This commit is contained in:
parent
d652165472
commit
92d04986d6
318
ase/stx/interp.c
318
ase/stx/interp.c
@ -1,5 +1,5 @@
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/*
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* $Id: interp.c,v 1.14 2005-09-13 12:10:23 bacon Exp $
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* $Id: interp.c,v 1.15 2005-09-13 15:56:23 bacon Exp $
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*/
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#include <xp/stx/interp.h>
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@ -55,26 +55,179 @@ struct process_t
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typedef struct process_t process_t;
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static int __run_process (xp_stx_t* stx, process_t* proc);
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static int __push_to_stack (xp_stx_t* stx,
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process_t* proc, xp_word_t what, xp_word_t index);
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static int __store_from_stack (xp_stx_t* stx,
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process_t* proc, xp_word_t what, xp_word_t index);
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static int __send_to_self (xp_stx_t* stx,
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process_t* proc, xp_word_t nargs, xp_word_t selector);
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static int __return_from_message (xp_stx_t* stx, process_t* proc);
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static int __dispatch_primitive (xp_stx_t* stx, process_t* proc, xp_word_t no);
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static int __init_process (process_t* proc, xp_word_t stack_size)
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int xp_stx_interp (xp_stx_t* stx, xp_word_t receiver, xp_word_t method)
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{
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/* don't use the object model for process */
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proc->stack = (xp_word_t*)xp_malloc (stack_size * xp_sizeof(xp_word_t));
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if (proc->stack == XP_NULL) return -1;
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process_t proc;
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xp_stx_method_t* mthobj;
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xp_word_t i;
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int n;
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proc->stack_size = stack_size;
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proc->stack_base = 0;
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proc->stack_top = 0;
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// TODO: size of process stack.
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proc.stack = (xp_word_t*)xp_malloc (10000 * xp_sizeof(xp_word_t));
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if (proc.stack == XP_NULL) {
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xp_printf (XP_TEXT("out of memory in xp_stx_interp\n"));
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return -1;
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}
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proc.stack_size = 10000;
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proc.stack_base = 0;
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proc.stack_top = 0;
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mthobj = (xp_stx_method_t*)XP_STX_OBJECT(stx,method);
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xp_assert (mthobj != XP_NULL);
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proc.literals = mthobj->literals;
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proc.bytecodes = XP_STX_DATA(stx, mthobj->bytecodes);
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proc.bytecode_size = XP_STX_SIZE(stx, mthobj->bytecodes);
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/* TODO: disable the method with arguments for start-up */
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proc.argcount = XP_STX_FROM_SMALLINT(mthobj->argcount);
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proc.tmpcount = XP_STX_FROM_SMALLINT(mthobj->tmpcount);
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proc.method = method;
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proc.pc = 0;
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proc.stack_base = proc.stack_top;
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/* push the receiver */
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proc.stack[proc.stack_top++] = receiver;
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/* push arguments */
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for (i = 0; i < proc.argcount; i++) {
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proc.stack[proc.stack_top++] = stx->nil;
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}
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/* secure space for temporaries */
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for (i = 0; i < proc.tmpcount; i++)
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proc.stack[proc.stack_top++] = stx->nil;
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/* push dummy pc */
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proc.stack[proc.stack_top++] = 0;
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/* push dummy method */
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proc.stack[proc.stack_top++] = stx->nil;
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/* push dummy previous stack base */
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proc.stack[proc.stack_top++] = 0;
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n = __run_process (stx, &proc);
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xp_free (proc.stack);
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return n;
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}
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static int __run_process (xp_stx_t* stx, process_t* proc)
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{
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int code, next, next2;
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while (proc->pc < proc->bytecode_size) {
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code = proc->bytecodes[proc->pc++];
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#ifdef DEBUG
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xp_printf (XP_TEXT("code = 0x%x\n"), code);
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#endif
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if (code >= 0x00 && code <= 0x3F) {
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/* stack - push */
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__push_to_stack (stx, proc, code >> 4, code & 0x0F);
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}
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else if (code >= 0x40 && code <= 0x5F) {
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/* stack - store */
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int what = code >> 4;
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int index = code & 0x0F;
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__store_from_stack (stx, proc, code >> 4, code & 0x0F);
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}
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/* more here .... */
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else if (code == 0x70) {
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next = proc->bytecodes[proc->pc++];
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//xp_printf (XP_TEXT("%d, %d\n"), next >> 5, next & 0x1F);
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if (__send_to_self (stx, proc,
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next >> 5, proc->literals[next & 0x1F]) == -1) break;
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//xp_printf (XP_TEXT("done %d, %d\n"), next >> 5, next & 0x1F);
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}
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else if (code == 0x71) {
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/* send to super */
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next = proc->bytecodes[proc->pc++];
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//__send_to_super (stx,
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// proc, next >> 5, proc->literals[next & 0x1F]);
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}
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else if (code == 0x72) {
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/* send to self extended */
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next = proc->bytecodes[proc->pc++];
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next2 = proc->bytecodes[proc->pc++];
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if (__send_to_self (stx, proc,
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next >> 5, proc->literals[next2]) == -1) break;
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}
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else if (code == 0x73) {
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/* send to super extended */
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next = proc->bytecodes[proc->pc++];
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next2 = proc->bytecodes[proc->pc++];
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//__send_to_super (stx,
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// proc, next >> 5, proc->literals[next2]);
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}
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/* more code .... */
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else if (code == 0x7C) {
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/* return from message */
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if (__return_from_message (stx, proc) == -1) break;
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}
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else if (code >= 0xF0 && code <= 0xFF) {
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/* primitive */
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next = proc->bytecodes[proc->pc++];
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__dispatch_primitive (stx, proc, ((code & 0x0F) << 8) | next);
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}
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}
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return 0;
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}
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static void __deinit_process (process_t* proc)
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static int __push_to_stack (xp_stx_t* stx,
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process_t* proc, xp_word_t what, xp_word_t index)
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{
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/* TODO: */
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switch (what) {
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case 0: /* receiver variable */
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proc->stack[proc->stack_top++] =
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XP_STX_WORD_AT(stx, proc->stack[proc->stack_base], index);
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break;
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case 1: /* temporary variable */
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proc->stack[proc->stack_top++] =
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proc->stack[proc->stack_base + 1 + index];
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break;
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case 2: /* literal constant */
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proc->stack[proc->stack_top++] = proc->literals[index];
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break;
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case 3: /* literal variable */
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break;
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}
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return 0;
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}
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static int __store_from_stack (xp_stx_t* stx,
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process_t* proc, xp_word_t what, xp_word_t index)
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{
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switch (what) {
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case 4: /* receiver variable */
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XP_STX_WORD_AT(stx,proc->stack[proc->stack_base],index) = proc->stack[--proc->stack_top];
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break;
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case 5: /* temporary location */
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proc->stack[proc->stack_base + 1 + index] = proc->stack[--proc->stack_top];
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break;
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}
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return 0;
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}
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static int __send_to_self (xp_stx_t* stx,
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process_t* proc, xp_word_t nargs, xp_word_t selector)
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@ -126,7 +279,7 @@ xp_printf (XP_TEXT("cannot find the method....\n"));
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return 0;
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}
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static int __return_from_message (xp_stx_t* stx, process_t* proc, int code)
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static int __return_from_message (xp_stx_t* stx, process_t* proc)
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{
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xp_word_t method, pc, stack_base;
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xp_stx_method_t* mthobj;
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@ -159,148 +312,6 @@ static int __return_from_message (xp_stx_t* stx, process_t* proc, int code)
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return 0;
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}
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static int __run_process (xp_stx_t* stx, process_t* proc)
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{
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int code, next, next2;
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while (proc->pc < proc->bytecode_size) {
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code = proc->bytecodes[proc->pc++];
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#ifdef DEBUG
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xp_printf (XP_TEXT("code = 0x%x\n"), code);
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#endif
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if (code >= 0x00 && code <= 0x3F) {
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/* stack - push */
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int what = code >> 4;
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int index = code & 0x0F;
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switch (what) {
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#if 0
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case 0: /* receiver variable */
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proc->stack[proc->stack_top++] = XP_STX_WORD_AT(stx, proc->receiver, index);
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break;
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#endif
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case 1: /* temporary variable */
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proc->stack[proc->stack_top++] =
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proc->stack[proc->stack_base + 1 + index];
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break;
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case 2: /* literal constant */
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proc->stack[proc->stack_top++] = proc->literals[index];
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break;
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case 3: /* literal variable */
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break;
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}
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}
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else if (code >= 0x40 && code <= 0x5F) {
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/* stack - store */
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int what = code >> 4;
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int index = code & 0x0F;
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switch (what) {
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#if 0
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case 4: /* receiver variable */
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XP_STX_WORD_AT(stx,proc->receiver,index) = proc->stack[--proc->stack_top];
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break;
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#endif
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case 5: /* temporary location */
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proc->stack[proc->stack_base + 1 + index] = proc->stack[--proc->stack_top];
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break;
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}
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}
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/* more here .... */
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else if (code == 0x70) {
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next = proc->bytecodes[proc->pc++];
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//xp_printf (XP_TEXT("%d, %d\n"), next >> 5, next & 0x1F);
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if (__send_to_self (stx, proc,
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next >> 5, proc->literals[next & 0x1F]) == -1) break;
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//xp_printf (XP_TEXT("done %d, %d\n"), next >> 5, next & 0x1F);
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}
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else if (code == 0x71) {
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/* send to super */
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next = proc->bytecodes[proc->pc++];
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//__send_to_super (stx,
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// proc, next >> 5, proc->literals[next & 0x1F]);
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}
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else if (code == 0x72) {
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/* send to self extended */
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next = proc->bytecodes[proc->pc++];
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next2 = proc->bytecodes[proc->pc++];
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if (__send_to_self (stx, proc,
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next >> 5, proc->literals[next2]) == -1) break;
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}
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else if (code == 0x73) {
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/* send to super extended */
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next = proc->bytecodes[proc->pc++];
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next2 = proc->bytecodes[proc->pc++];
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//__send_to_super (stx,
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// proc, next >> 5, proc->literals[next2]);
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}
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/* more code .... */
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else if (code == 0x7C) {
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/* return from message */
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if (__return_from_message (stx, proc, code) == -1) break;
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}
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else if (code >= 0xF0 && code <= 0xFF) {
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/* primitive */
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next = proc->bytecodes[proc->pc++];
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__dispatch_primitive (stx, proc, ((code & 0x0F) << 8) | next);
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}
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}
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return 0;
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}
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int xp_stx_interp (xp_stx_t* stx, xp_word_t receiver, xp_word_t method)
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{
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process_t proc;
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xp_stx_method_t* mthobj;
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xp_word_t i;
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// TODO: size of process stack.
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if (__init_process(&proc, 10000) == -1) return -1;
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mthobj = (xp_stx_method_t*)XP_STX_OBJECT(stx,method);
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xp_assert (mthobj != XP_NULL);
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proc.literals = mthobj->literals;
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proc.bytecodes = XP_STX_DATA(stx, mthobj->bytecodes);
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proc.bytecode_size = XP_STX_SIZE(stx, mthobj->bytecodes);
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/* TODO: disable the method with arguments for start-up */
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proc.argcount = XP_STX_FROM_SMALLINT(mthobj->argcount);
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proc.tmpcount = XP_STX_FROM_SMALLINT(mthobj->tmpcount);
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proc.method = method;
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proc.pc = 0;
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proc.stack_base = proc.stack_top;
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/* push the receiver */
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proc.stack[proc.stack_top++] = receiver;
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/* push arguments */
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for (i = 0; i < proc.argcount; i++) {
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proc.stack[proc.stack_top++] = stx->nil;
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}
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/* secure space for temporaries */
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for (i = 0; i < proc.tmpcount; i++)
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proc.stack[proc.stack_top++] = stx->nil;
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/* push dummy pc */
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proc.stack[proc.stack_top++] = 0;
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/* push dummy method */
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proc.stack[proc.stack_top++] = stx->nil;
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/* push dummy previous stack base */
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proc.stack[proc.stack_top++] = 0;
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return __run_process (stx, &proc);
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}
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static int __dispatch_primitive (xp_stx_t* stx, process_t* proc, xp_word_t no)
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{
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@ -322,4 +333,5 @@ static int __dispatch_primitive (xp_stx_t* stx, process_t* proc, xp_word_t no)
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break;
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}
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return 0;
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}
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@ -1,11 +1,13 @@
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main
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<primitive: 0>
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"a := 10.
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#abc xxx.
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#abc xxx: 1.
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b := 3.
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^nil "
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#abc print: 123 and: 2345.
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a := #abc print: 123 and: 2345.
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#abc print: a and: a.
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1234567.
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^nil
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@ -4,4 +4,4 @@ print: a1 and: a2
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t1 := #abcdefg.
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"a1 := 2341 arguments are not assignable"
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t1 prim2: a2.
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^nil.
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^9999.
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