mirror of
https://github.com/ashinn/chibi-scheme.git
synced 2025-05-20 06:09:18 +02:00
83 lines
2.8 KiB
C
83 lines
2.8 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", "ERROR", "RESUMECC", "CALLCC", "APPLY1", "TAIL_CALL", "CALL",
|
|
"FCALL0", "FCALL1", "FCALL2", "FCALL3", "EVAL", "JUMP_UNLESS", "JUMP",
|
|
"PARAMETER", "PUSH", "DROP", "STACK_REF", "LOCAL_REF", "LOCAL_SET",
|
|
"CLOSURE_REF", "VECTOR_REF", "VECTOR_SET", "STRING_REF", "STRING_SET",
|
|
"MAKE_PROCEDURE", "MAKE_VECTOR", "PAIRP", "NULLP", "VECTORP", "INTEGERP",
|
|
"SYMBOLP", "STRINGP", "CHARP", "EOFP", "PROCEDUREP", "IPORTP", "OPORTP",
|
|
"CAR", "CDR", "SET_CAR", "SET_CDR", "CONS", "ADD", "SUB", "MUL", "DIV",
|
|
"QUOT", "MOD", "NEG", "INV", "LT", "LE", "EQV", "EQ", "DISPLAY", "WRITE",
|
|
"WRITE_CHAR", "NEWLINE", "FLUSH_OUTPUT", "READ", "READ_CHAR", "RET", "DONE",
|
|
};
|
|
|
|
void disasm (sexp bc) {
|
|
unsigned char *ip=sexp_bytecode_data(bc), opcode;
|
|
loop:
|
|
opcode = *ip++;
|
|
if (opcode*sizeof(char*) < sizeof(reverse_opcode_names)) {
|
|
fprintf(stderr, " %s ", reverse_opcode_names[opcode]);
|
|
} else {
|
|
fprintf(stderr, " <unknown> %d ", opcode);
|
|
}
|
|
switch (opcode) {
|
|
case OP_STACK_REF:
|
|
case OP_LOCAL_REF:
|
|
case OP_LOCAL_SET:
|
|
case OP_CLOSURE_REF:
|
|
case OP_PARAMETER:
|
|
case OP_JUMP:
|
|
case OP_JUMP_UNLESS:
|
|
fprintf(stderr, "%ld", (sexp_sint_t) ((sexp*)ip)[0]);
|
|
ip += sizeof(sexp);
|
|
break;
|
|
case OP_TAIL_CALL:
|
|
case OP_CALL:
|
|
case OP_PUSH:
|
|
sexp_write(((sexp*)ip)[0], cur_error_port);
|
|
ip += sizeof(sexp);
|
|
break;
|
|
}
|
|
fprintf(stderr, "\n");
|
|
if (ip - sexp_bytecode_data(bc) < sexp_bytecode_length(bc))
|
|
goto loop;
|
|
}
|
|
|
|
void print_bytecode (sexp bc) {
|
|
int i;
|
|
unsigned char *data = sexp_bytecode_data(bc);
|
|
fprintf(stderr, "bytecode @ %p, data @ %p, length = %lu\n",
|
|
bc, data, sexp_bytecode_length(bc));
|
|
for (i=0; i+16 < sexp_bytecode_length(bc); i+=8) {
|
|
fprintf(stderr, "%02x: %02x %02x %02x %02x %02x %02x %02x %02x ", i,
|
|
data[i], data[i+1], data[i+2], data[i+3],
|
|
data[i+4], data[i+5], data[i+6], data[i+7]);
|
|
i += 8;
|
|
fprintf(stderr, "%02x %02x %02x %02x %02x %02x %02x %02x\n",
|
|
data[i], data[i+1], data[i+2], data[i+3],
|
|
data[i+4], data[i+5], data[i+6], data[i+7]);
|
|
}
|
|
if (i != sexp_bytecode_length(bc)) {
|
|
fprintf(stderr, "%02x:", i);
|
|
for ( ; i < sexp_bytecode_length(bc); i++) {
|
|
if ((i % 8) == 0 && (i % 16) != 0)
|
|
fprintf(stderr, " ");
|
|
fprintf(stderr, " %02x", data[i]);
|
|
}
|
|
fprintf(stderr, "\n");
|
|
}
|
|
}
|
|
|
|
void print_stack (sexp *stack, int top, int fp) {
|
|
int i;
|
|
for (i=0; i<top; i++) {
|
|
fprintf(stderr, "%s %02d: ", ((i==fp) ? "*" : " "), i);
|
|
fflush(stderr);
|
|
sexp_write(stack[i], cur_error_port);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
}
|
|
|