| Line 59... |
Line 59... |
fflush(stdout);
|
fflush(stdout);
|
free(p);
|
free(p);
|
#endif
|
#endif
|
}
|
}
|
|
|
|
/* Whether this instruction stores something in register */
|
|
static int write_to_reg = 0;
|
|
|
static int olevel;
|
static int olevel;
|
|
|
|
/* Following functions recursivelly searches for substrings eval_operand and
|
|
set_operand (see functions with the same name in execute.c) and replaces
|
|
them with optimized code. */
|
char *replace_operands (FILE *fo, char *str) {
|
char *replace_operands (FILE *fo, char *str) {
|
int replace = 0;
|
int replace = 0;
|
if (*str == '}') {olevel--;}
|
if (*str == '}') {olevel--;}
|
else if (*str == '{') {olevel++;}
|
else if (*str == '{') {olevel++;}
|
else if (strncmp ("eval_operand", str, 12) == 0) {
|
else if (strncmp ("eval_operand", str, 12) == 0) {
|
| Line 81... |
Line 87... |
if (replace == 1) {
|
if (replace == 1) {
|
if (op[oper] & OPTYPE_DIS) {
|
if (op[oper] & OPTYPE_DIS) {
|
fprintf (fo, "eval_mem%i (%c", width, 'a' + oper);
|
fprintf (fo, "eval_mem%i (%c", width, 'a' + oper);
|
} else {
|
} else {
|
if (op[oper] & OPTYPE_REG) {
|
if (op[oper] & OPTYPE_REG) {
|
fprintf (fo, "eval_reg%i (%c", width, 'a' + oper);
|
fprintf (fo, "(reg[%c]", 'a' + oper);
|
} else {
|
} else {
|
fprintf (fo, "(%c", 'a' + oper);
|
fprintf (fo, "(%c", 'a' + oper);
|
}
|
}
|
}
|
}
|
} else {
|
} else {
|
op[oper] |= OPTYPE_DST;
|
op[oper] |= OPTYPE_DST;
|
if (op[oper] & OPTYPE_DIS) {
|
if (op[oper] & OPTYPE_DIS) {
|
fprintf (fo, "set_mem%i(%c,", width, 'a' + oper);
|
fprintf (fo, "set_mem%i(%c,", width, 'a' + oper);
|
} else if (op[oper] & OPTYPE_REG) {
|
} else if (op[oper] & OPTYPE_REG) {
|
fprintf (fo, "set_reg%i(%c,",width, 'a' + oper);
|
fprintf (fo, "reg[%c] = (", 'a' + oper);
|
|
write_to_reg = 1;
|
} else {
|
} else {
|
fprintf (stderr, "Invalid operand type.\n");
|
fprintf (stderr, "Invalid operand type.\n");
|
exit (1);
|
exit (1);
|
}
|
}
|
while (*str != ',') str = replace_operands (fo, str) + 1;
|
while (*str != ',') str = replace_operands (fo, str) + 1;
|
| Line 107... |
Line 114... |
fputc (*str, fo);
|
fputc (*str, fo);
|
}
|
}
|
return str;
|
return str;
|
}
|
}
|
|
|
|
/* Generates a execute sequence for one instruction */
|
int output_function (FILE *fo, const char *func_name, int level)
|
int output_function (FILE *fo, const char *func_name, int level)
|
{
|
{
|
FILE *fi;
|
FILE *fi;
|
if ((fi = fopen (in_file, "rt")) == NULL) return 1;
|
if ((fi = fopen (in_file, "rt")) == NULL) return 1;
|
while (!feof (fi)) {
|
while (!feof (fi)) {
|
| Line 194... |
Line 202... |
firstd = 0;
|
firstd = 0;
|
dis = 1;
|
dis = 1;
|
} else
|
} else
|
{
|
{
|
if (dis && (opd->type & OPTYPE_REG)) {
|
if (dis && (opd->type & OPTYPE_REG)) {
|
|
if (MAX_GPRS == (1 << nbits)) {
|
|
SHIFT; fprintf (fo, "op[%i] = %c = data + reg [tmp];\n", no, 'a' + no);
|
|
}else {
|
SHIFT; fprintf (fo, "op[%i] = %c = data + eval_reg32 (tmp);\n", no, 'a' + no);
|
SHIFT; fprintf (fo, "op[%i] = %c = data + eval_reg32 (tmp);\n", no, 'a' + no);
|
|
}
|
} else {
|
} else {
|
SHIFT; fprintf (fo, "op[%i] = %c = tmp;\n", no, 'a' + no);
|
SHIFT; fprintf (fo, "op[%i] = %c = tmp;\n", no, 'a' + no);
|
}
|
}
|
SHIFT; fprintf (fo, "op[%i + MAX_OPERANDS] = 0x%08x;\n", no, opd->type | (dis ? OPTYPE_DIS : 0));
|
SHIFT; fprintf (fo, "op[%i + MAX_OPERANDS] = 0x%08x;\n", no, opd->type | (dis ? OPTYPE_DIS : 0));
|
op[no] = opd->type | (dis ? OPTYPE_DIS : 0);
|
op[no] = opd->type | (dis ? OPTYPE_DIS : 0);
|
| Line 214... |
Line 226... |
opd++;
|
opd++;
|
}
|
}
|
SHIFT; fprintf (fo, "num_op = %i;\n", no);
|
SHIFT; fprintf (fo, "num_op = %i;\n", no);
|
}
|
}
|
|
|
|
/* Generates decode and execute for one instruction instance */
|
int output_call (FILE *fo, int index, int level)
|
int output_call (FILE *fo, int index, int level)
|
{
|
{
|
int i;
|
int i;
|
printf ("%i:%s\n", index, insn_name (index));
|
printf ("%i:%s\n", index, insn_name (index));
|
fprintf (fo, "{\n");
|
fprintf (fo, "{\n");
|
level++;
|
level++;
|
if (index >= 0) {
|
if (index >= 0) {
|
SHIFT; fprintf (fo, "unsigned long data, tmp;\n");
|
SHIFT; fprintf (fo, "unsigned long data, tmp;\n");
|
SHIFT; fprintf (fo, "unsigned long a, b, c; /* operands */\n");
|
SHIFT; fprintf (fo, "unsigned long a, b, c; /* operands */\n");
|
}
|
}
|
|
write_to_reg = 0;
|
if (index >= 0) {
|
if (index >= 0) {
|
SHIFT; fprintf (fo, "insn_index = %i; /* \"%s\" */\n", index, insn_name (index));
|
SHIFT; fprintf (fo, "insn_index = %i; /* \"%s\" */\n", index, insn_name (index));
|
gen_eval_operands (fo, index, level);
|
gen_eval_operands (fo, index, level);
|
} else {
|
} else {
|
SHIFT; fprintf (fo, "/* insn_index = -1 by default */\n");
|
SHIFT; fprintf (fo, "insn_index = -1;\n");
|
}
|
}
|
SHIFT;
|
SHIFT;
|
if (index < 0) output_function (fo, "l_invalid", level);
|
if (index < 0) output_function (fo, "l_invalid", level);
|
else output_function (fo, or32_opcodes[index].function_name, level);
|
else output_function (fo, or32_opcodes[index].function_name, level);
|
printf ("\n");
|
fprintf (fo, "\n");
|
for (i = 0; i < num_op; i++)
|
for (i = 0; i < num_op; i++)
|
if (op[i] & OPTYPE_DST) {
|
if (op[i] & OPTYPE_DST) {
|
SHIFT; fprintf (fo, "IFF (config.cpu.dependstats) op[%i + MAX_OPERANDS] |= OPTYPE_DST;\n", i);
|
SHIFT; fprintf (fo, "IFF (config.cpu.dependstats) op[%i + MAX_OPERANDS] |= OPTYPE_DST;\n", i);
|
}
|
}
|
|
if (write_to_reg) {
|
|
SHIFT; fprintf (fo, "reg[0] = 0; /* Repair in case we changed it */\n", i);
|
|
}
|
level--;
|
level--;
|
SHIFT; fprintf (fo, "}");
|
SHIFT; fprintf (fo, "}");
|
return 0;
|
return 0;
|
}
|
}
|
|
|
|
/* Generates .c file header */
|
static int generate_header (FILE *fo)
|
static int generate_header (FILE *fo)
|
{
|
{
|
fprintf (fo, "/* This file was automatically generated by generate (see cpu/or32/generate.c) */\n\n");
|
fprintf (fo, "/* This file was automatically generated by generate (see cpu/or32/generate.c) */\n\n");
|
fprintf (fo, "static inline void decode_execute (struct iqueue_entry *current)\n{\n");
|
fprintf (fo, "static inline void decode_execute (struct iqueue_entry *current)\n{\n");
|
fprintf (fo, " unsigned long insn = current->insn;\n");
|
fprintf (fo, " unsigned long insn = current->insn;\n");
|
fprintf (fo, " int insn_index = -1;\n");
|
fprintf (fo, " int insn_index;\n");
|
fprintf (fo, " op = &cur->op[0];\n");
|
fprintf (fo, " op = ¤t->op[0];\n");
|
return 0;
|
return 0;
|
}
|
}
|
|
|
|
/* Generates .c file footer */
|
int generate_footer (FILE *fo)
|
int generate_footer (FILE *fo)
|
{
|
{
|
fprintf (fo, " current->insn_index = insn_index;\n");
|
fprintf (fo, " current->insn_index = insn_index;\n");
|
fprintf (fo, "}\n");
|
fprintf (fo, "}\n");
|
return 0;
|
return 0;
|
| Line 348... |
Line 367... |
fclose (fo);
|
fclose (fo);
|
destruct_automata ();
|
destruct_automata ();
|
return 0;
|
return 0;
|
}
|
}
|
|
|
No newline at end of file
|
No newline at end of file
|
|
|
No newline at end of file
|
No newline at end of file
|
