mirror of
https://github.com/ashinn/chibi-scheme.git
synced 2025-05-20 14:19:18 +02:00
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* debug.c -- optional debugging utilities */
|
|
/* Copyright (c) 2009 Alex Shinn. All rights reserved. */
|
|
/* BSD-style license: http://synthcode.com/license.txt */
|
|
|
|
static const char* reverse_opcode_names[] =
|
|
{"NOOP", "RAISE", "RESUMECC", "CALLCC", "APPLY1", "TAIL-CALL", "CALL",
|
|
"FCALL0", "FCALL1", "FCALL2", "FCALL3", "FCALL4", "FCALL5", "FCALL6",
|
|
"EVAL", "JUMP-UNLESS",
|
|
"JUMP", "PUSH", "DROP", "GLOBAL-REF", "GLOBAL-KNOWN-REF", "STACK-REF",
|
|
"LOCAL-REF", "LOCAL-SET",
|
|
"CLOSURE-REF", "VECTOR-REF", "VECTOR-SET", "VECTOR-LENGTH", "STRING-REF",
|
|
"STRING-SET", "STRING-LENGTH", "MAKE-PROCEDURE", "MAKE-VECTOR", "AND",
|
|
"NULL?", "FIXNUM?", "SYMBOL?", "CHAR?",
|
|
"EOF?", "TYPEP", "CAR", "CDR", "SET-CAR", "SET-CDR", "CONS", "ADD", "SUB",
|
|
"MUL", "DIV", "QUOTIENT", "REMAINDER", "NEGATIVE", "INVERSE",
|
|
"LT", "LE", "EQN", "EQ",
|
|
"EXACT->INEXACT", "INEXACT->EXACT",
|
|
"CHAR->INTEGER", "INTEGER->CHAR", "CHAR-UPCASE", "CHAR-DOWNCASE",
|
|
"DISPLAY", "WRITE", "WRITE-CHAR",
|
|
"NEWLINE", "FLUSH-OUTPUT", "READ", "READ-CHAR", "PEEK-CHAR", "RET", "DONE",
|
|
};
|
|
|
|
static sexp sexp_disasm (sexp ctx, sexp bc, sexp out) {
|
|
unsigned char *ip, opcode;
|
|
if (sexp_procedurep(bc))
|
|
bc = sexp_procedure_code(bc);
|
|
ip = sexp_bytecode_data(bc);
|
|
loop:
|
|
opcode = *ip++;
|
|
if (opcode*sizeof(char*) < sizeof(reverse_opcode_names)) {
|
|
sexp_printf(out, " %s ", reverse_opcode_names[opcode]);
|
|
} else {
|
|
sexp_printf(out, " <unknown> %d ", opcode);
|
|
}
|
|
switch (opcode) {
|
|
case OP_STACK_REF:
|
|
case OP_LOCAL_REF:
|
|
case OP_LOCAL_SET:
|
|
case OP_CLOSURE_REF:
|
|
case OP_JUMP:
|
|
case OP_JUMP_UNLESS:
|
|
case OP_FCALL0:
|
|
case OP_FCALL1:
|
|
case OP_FCALL2:
|
|
case OP_FCALL3:
|
|
case OP_TYPEP:
|
|
sexp_printf(out, "%ld", (sexp_sint_t) ((sexp*)ip)[0]);
|
|
ip += sizeof(sexp);
|
|
break;
|
|
case OP_GLOBAL_REF:
|
|
case OP_GLOBAL_KNOWN_REF:
|
|
case OP_TAIL_CALL:
|
|
case OP_CALL:
|
|
case OP_PUSH:
|
|
sexp_write(((sexp*)ip)[0], out);
|
|
ip += sizeof(sexp);
|
|
break;
|
|
}
|
|
sexp_write_char('\n', out);
|
|
if (ip - sexp_bytecode_data(bc) < sexp_bytecode_length(bc))
|
|
goto loop;
|
|
return SEXP_VOID;
|
|
}
|
|
|
|
#ifdef DEBUG_VM
|
|
static void sexp_print_stack (sexp *stack, int top, int fp, sexp out) {
|
|
int i;
|
|
for (i=0; i<top; i++) {
|
|
sexp_printf(out, "%s %02d: ", ((i==fp) ? "*" : " "), i);
|
|
sexp_write(stack[i], out);
|
|
sexp_printf(out, "\n");
|
|
}
|
|
}
|
|
#endif
|
|
|