mirror of
https://github.com/badvision/lawless-legends.git
synced 2024-08-25 12:28:55 +00:00
Implement better constant string management
This commit is contained in:
parent
3f880ecb67
commit
7ee5a3d524
@ -482,7 +482,7 @@ void emit_idconst(char *name, int value)
|
|||||||
int emit_data(int vartype, int consttype, long constval, int constsize)
|
int emit_data(int vartype, int consttype, long constval, int constsize)
|
||||||
{
|
{
|
||||||
int datasize, i;
|
int datasize, i;
|
||||||
char *str;
|
unsigned char *str;
|
||||||
if (consttype == 0)
|
if (consttype == 0)
|
||||||
{
|
{
|
||||||
datasize = constsize;
|
datasize = constsize;
|
||||||
@ -490,9 +490,10 @@ int emit_data(int vartype, int consttype, long constval, int constsize)
|
|||||||
}
|
}
|
||||||
else if (consttype & STRING_TYPE)
|
else if (consttype & STRING_TYPE)
|
||||||
{
|
{
|
||||||
datasize = constsize;
|
str = (unsigned char *)constval;
|
||||||
str = (char *)constval;
|
constsize = *str++;
|
||||||
printf("\t%s\t$%02X\n", DB, --constsize);
|
datasize = constsize + 1;
|
||||||
|
printf("\t%s\t$%02X\n", DB, constsize);
|
||||||
while (constsize-- > 0)
|
while (constsize-- > 0)
|
||||||
{
|
{
|
||||||
printf("\t%s\t$%02X", DB, *str++);
|
printf("\t%s\t$%02X", DB, *str++);
|
||||||
@ -555,10 +556,10 @@ void emit_const(int cval)
|
|||||||
else
|
else
|
||||||
printf("\t%s\t$2C,$%02X,$%02X\t\t; CW\t%d\n", DB, cval&0xFF,(cval>>8)&0xFF, cval);
|
printf("\t%s\t$2C,$%02X,$%02X\t\t; CW\t%d\n", DB, cval&0xFF,(cval>>8)&0xFF, cval);
|
||||||
}
|
}
|
||||||
void emit_conststr(long conststr, int strsize)
|
void emit_conststr(long conststr)
|
||||||
{
|
{
|
||||||
printf("\t%s\t$2E\t\t\t; CS\n", DB);
|
printf("\t%s\t$2E\t\t\t; CS\n", DB);
|
||||||
emit_data(0, STRING_TYPE, conststr, strsize);
|
emit_data(0, STRING_TYPE, conststr, 0);
|
||||||
}
|
}
|
||||||
void emit_lb(void)
|
void emit_lb(void)
|
||||||
{
|
{
|
||||||
@ -1264,7 +1265,7 @@ int emit_seq(t_opseq *seq)
|
|||||||
emit_const(op->val);
|
emit_const(op->val);
|
||||||
break;
|
break;
|
||||||
case STR_CODE:
|
case STR_CODE:
|
||||||
emit_conststr(op->val, op->offsz);
|
emit_conststr(op->val);
|
||||||
break;
|
break;
|
||||||
case LB_CODE:
|
case LB_CODE:
|
||||||
emit_lb();
|
emit_lb();
|
||||||
|
@ -74,7 +74,7 @@ typedef struct _opseq {
|
|||||||
#define gen_uop(seq,op) gen_seq(seq,UNARY_CODE(op),0,0,0,0)
|
#define gen_uop(seq,op) gen_seq(seq,UNARY_CODE(op),0,0,0,0)
|
||||||
#define gen_op(seq,op) gen_seq(seq,BINARY_CODE(op),0,0,0,0)
|
#define gen_op(seq,op) gen_seq(seq,BINARY_CODE(op),0,0,0,0)
|
||||||
#define gen_const(seq,val) gen_seq(seq,CONST_CODE,val,0,0,0)
|
#define gen_const(seq,val) gen_seq(seq,CONST_CODE,val,0,0,0)
|
||||||
#define gen_str(seq,str,len) gen_seq(seq,STR_CODE,str,0,len,0)
|
#define gen_str(seq,str) gen_seq(seq,STR_CODE,str,0,0,0)
|
||||||
#define gen_lcladr(seq,idx) gen_seq(seq,LADDR_CODE,0,0,idx,0)
|
#define gen_lcladr(seq,idx) gen_seq(seq,LADDR_CODE,0,0,idx,0)
|
||||||
#define gen_gbladr(seq,tag,typ) gen_seq(seq,GADDR_CODE,0,tag,0,typ)
|
#define gen_gbladr(seq,tag,typ) gen_seq(seq,GADDR_CODE,0,tag,0,typ)
|
||||||
#define gen_idxb(seq) gen_seq(seq,ADD_CODE,0,0,0,0)
|
#define gen_idxb(seq) gen_seq(seq,ADD_CODE,0,0,0,0)
|
||||||
@ -103,7 +103,7 @@ void emit_idconst(char *name, int value);
|
|||||||
int emit_data(int vartype, int consttype, long constval, int constsize);
|
int emit_data(int vartype, int consttype, long constval, int constsize);
|
||||||
void emit_codetag(int tag);
|
void emit_codetag(int tag);
|
||||||
void emit_const(int cval);
|
void emit_const(int cval);
|
||||||
void emit_conststr(long conststr, int strsize);
|
void emit_conststr(long conststr);
|
||||||
void emit_lb(void);
|
void emit_lb(void);
|
||||||
void emit_lw(void);
|
void emit_lw(void);
|
||||||
void emit_llb(int index);
|
void emit_llb(int index);
|
||||||
|
@ -7,7 +7,6 @@
|
|||||||
* ANY KIND, either express or implied. See the License for the specific language
|
* ANY KIND, either express or implied. See the License for the specific language
|
||||||
* governing permissions and limitations under the License.
|
* governing permissions and limitations under the License.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#include <stdint.h>
|
#include <stdint.h>
|
||||||
#include <stdio.h>
|
#include <stdio.h>
|
||||||
#include <stdlib.h>
|
#include <stdlib.h>
|
||||||
@ -15,7 +14,7 @@
|
|||||||
#include <ctype.h>
|
#include <ctype.h>
|
||||||
#include "plasm.h"
|
#include "plasm.h"
|
||||||
|
|
||||||
char *statement, *tokenstr, *scanpos = (char*) "";
|
char *statement, *tokenstr, *scanpos = "", *strpos = "";
|
||||||
t_token scantoken, prevtoken;
|
t_token scantoken, prevtoken;
|
||||||
int tokenlen;
|
int tokenlen;
|
||||||
long constval;
|
long constval;
|
||||||
@ -234,68 +233,68 @@ t_token scan(void)
|
|||||||
scanpos += 4;
|
scanpos += 4;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
else if ((scanpos[0] & 0x7F) == '\"') // Hack for string quote char in case we have to rewind later
|
else if (scanpos[0] == '\"') // Hack for string quote char in case we have to rewind later
|
||||||
{
|
{
|
||||||
char *scanshift, quotechar;
|
|
||||||
int scanoffset;
|
int scanoffset;
|
||||||
/*
|
/*
|
||||||
* String constant.
|
* String constant.
|
||||||
*/
|
*/
|
||||||
quotechar = scanpos[0];
|
|
||||||
*scanpos |= 0x80; // Set high bit in case of rewind
|
|
||||||
scantoken = STRING_TOKEN;
|
scantoken = STRING_TOKEN;
|
||||||
constval = (long)++scanpos;
|
constval = (long)strpos++;
|
||||||
while (*scanpos && *scanpos != quotechar)
|
scanpos++;
|
||||||
|
while (*scanpos && *scanpos != '\"')
|
||||||
{
|
{
|
||||||
if (*scanpos == '\\')
|
if (*scanpos == '\\')
|
||||||
{
|
{
|
||||||
scanoffset = 1;
|
scanoffset = 2;
|
||||||
switch (scanpos[1])
|
switch (scanpos[1])
|
||||||
{
|
{
|
||||||
case 'n':
|
case 'n':
|
||||||
*scanpos = 0x0D;
|
*strpos++ = 0x0D;
|
||||||
break;
|
break;
|
||||||
case 'r':
|
case 'r':
|
||||||
*scanpos = 0x0A;
|
*strpos++ = 0x0A;
|
||||||
break;
|
break;
|
||||||
case 't':
|
case 't':
|
||||||
*scanpos = '\t';
|
*strpos++ = '\t';
|
||||||
break;
|
break;
|
||||||
case '\'':
|
case '\'':
|
||||||
*scanpos = '\'';
|
*strpos++ = '\'';
|
||||||
break;
|
break;
|
||||||
case '\"':
|
case '\"':
|
||||||
*scanpos = '\"';
|
*strpos++ = '\"';
|
||||||
break;
|
break;
|
||||||
case '\\':
|
case '\\':
|
||||||
*scanpos = '\\';
|
*strpos++ = '\\';
|
||||||
break;
|
break;
|
||||||
case '0':
|
case '0':
|
||||||
*scanpos = '\0';
|
*strpos++ = '\0';
|
||||||
break;
|
break;
|
||||||
case '$':
|
case '$':
|
||||||
if (hexdigit(scanpos[2]) < 0 || hexdigit(scanpos[3]) < 0) {
|
if (hexdigit(scanpos[2]) < 0 || hexdigit(scanpos[3]) < 0) {
|
||||||
parse_error("Bad string constant");
|
parse_error("Bad string constant");
|
||||||
return (-1);
|
return (-1);
|
||||||
}
|
}
|
||||||
*scanpos = hexdigit(scanpos[2]) * 16 + hexdigit(scanpos[3]);
|
*strpos++ = hexdigit(scanpos[2]) * 16 + hexdigit(scanpos[3]);
|
||||||
scanoffset = 3;
|
scanoffset = 4;
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
parse_error("Bad string constant");
|
parse_error("Bad string constant");
|
||||||
return (-1);
|
return (-1);
|
||||||
}
|
}
|
||||||
for (scanshift = scanpos + 1; *scanshift; scanshift++)
|
scanpos += scanoffset;
|
||||||
scanshift[0] = scanshift[scanoffset];
|
|
||||||
}
|
}
|
||||||
scanpos++;
|
else
|
||||||
|
*strpos++ = *scanpos++;
|
||||||
}
|
}
|
||||||
if (!*scanpos)
|
if (!*scanpos)
|
||||||
{
|
{
|
||||||
parse_error("Unterminated string");
|
parse_error("Unterminated string");
|
||||||
return (-1);
|
return (-1);
|
||||||
}
|
}
|
||||||
*scanpos++ |= 0x80; // Set high bit in case of rewind
|
*((unsigned char *)constval) = (long)strpos - constval - 1;
|
||||||
|
*strpos++ = '\0';
|
||||||
|
scanpos++;
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
@ -414,30 +413,34 @@ void scan_rewind(char *backptr)
|
|||||||
}
|
}
|
||||||
int scan_lookahead(void)
|
int scan_lookahead(void)
|
||||||
{
|
{
|
||||||
char *backpos = scanpos;
|
char *backscan = scanpos;
|
||||||
char *backstr = tokenstr;
|
char *backtkn = tokenstr;
|
||||||
|
char *backstr = strpos;
|
||||||
int prevtoken = scantoken;
|
int prevtoken = scantoken;
|
||||||
int prevlen = tokenlen;
|
int prevlen = tokenlen;
|
||||||
int look = scan();
|
int look = scan();
|
||||||
scanpos = backpos;
|
scanpos = backscan;
|
||||||
tokenstr = backstr;
|
tokenstr = backtkn;
|
||||||
|
strpos = backstr;
|
||||||
scantoken = prevtoken;
|
scantoken = prevtoken;
|
||||||
tokenlen = prevlen;
|
tokenlen = prevlen;
|
||||||
return (look);
|
return (look);
|
||||||
}
|
}
|
||||||
char inputline[512];
|
char inputline[512];
|
||||||
|
char conststr[1024];
|
||||||
int next_line(void)
|
int next_line(void)
|
||||||
{
|
{
|
||||||
int len;
|
int len;
|
||||||
t_token token;
|
t_token token;
|
||||||
char* new_filename;
|
char* new_filename;
|
||||||
|
strpos = conststr;
|
||||||
if (inputfile == NULL)
|
if (inputfile == NULL)
|
||||||
{
|
{
|
||||||
/*
|
/*
|
||||||
* First-time init
|
* First-time init
|
||||||
*/
|
*/
|
||||||
inputfile = stdin;
|
inputfile = stdin;
|
||||||
filename = (char*) "<stdin>";
|
filename = "<stdin>";
|
||||||
}
|
}
|
||||||
if (*scanpos == ';')
|
if (*scanpos == ';')
|
||||||
{
|
{
|
||||||
@ -501,9 +504,8 @@ int next_line(void)
|
|||||||
outer_inputfile = inputfile;
|
outer_inputfile = inputfile;
|
||||||
outer_filename = filename;
|
outer_filename = filename;
|
||||||
outer_lineno = lineno;
|
outer_lineno = lineno;
|
||||||
new_filename = (char*) malloc(tokenlen-1);
|
new_filename = (char *) malloc(*((unsigned char *)constval) + 1);
|
||||||
strncpy(new_filename, (char*)constval, tokenlen-2);
|
strncpy(new_filename, (char *)(constval + 1), *((unsigned char *)constval) + 1);
|
||||||
new_filename[tokenlen-2] = 0;
|
|
||||||
inputfile = fopen(new_filename, "r");
|
inputfile = fopen(new_filename, "r");
|
||||||
if (inputfile == NULL)
|
if (inputfile == NULL)
|
||||||
{
|
{
|
||||||
|
@ -229,7 +229,7 @@ int parse_constval(void)
|
|||||||
case CLOSE_PAREN_TOKEN:
|
case CLOSE_PAREN_TOKEN:
|
||||||
break;
|
break;
|
||||||
case STRING_TOKEN:
|
case STRING_TOKEN:
|
||||||
size = tokenlen - 1;
|
size = 1;
|
||||||
value = constval;
|
value = constval;
|
||||||
type = STRING_TYPE;
|
type = STRING_TYPE;
|
||||||
if (mod)
|
if (mod)
|
||||||
@ -421,7 +421,7 @@ t_opseq *parse_value(t_opseq *codeseq, int rvalue, int *stackdepth)
|
|||||||
/*
|
/*
|
||||||
* This is a special case. Just emit the string and return
|
* This is a special case. Just emit the string and return
|
||||||
*/
|
*/
|
||||||
codeseq = gen_str(codeseq, constval, tokenlen - 1);
|
codeseq = gen_str(codeseq, constval);
|
||||||
scan();
|
scan();
|
||||||
return (codeseq);
|
return (codeseq);
|
||||||
}
|
}
|
||||||
|
Loading…
Reference in New Issue
Block a user