version 1.32, 1995/12/10 19:02:07
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version 1.40, 1997/02/16 20:51:07
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Line 19
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
*/ |
*/ |
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#include "config.h" |
#include <ctype.h> |
#include <ctype.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <string.h> |
#include <string.h> |
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#define IOR(flag) ((flag)? -512-errno : 0) |
#define IOR(flag) ((flag)? -512-errno : 0) |
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typedef union { |
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struct { |
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#ifdef WORDS_BIGENDIAN |
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Cell high; |
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Cell low; |
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#else |
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Cell low; |
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Cell high; |
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#endif; |
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} cells; |
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DCell dcell; |
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} Double_Store; |
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typedef struct F83Name { |
typedef struct F83Name { |
struct F83Name *next; /* the link field for old hands */ |
struct F83Name *next; /* the link field for old hands */ |
char countetc; |
char countetc; |
Line 68 typedef struct F83Name {
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Line 56 typedef struct F83Name {
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#define F83NAME_SMUDGE(np) (((np)->countetc & 0x40) != 0) |
#define F83NAME_SMUDGE(np) (((np)->countetc & 0x40) != 0) |
#define F83NAME_IMMEDIATE(np) (((np)->countetc & 0x20) != 0) |
#define F83NAME_IMMEDIATE(np) (((np)->countetc & 0x20) != 0) |
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#ifdef USE_TOS |
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#define IF_TOS(x) x |
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#else |
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#define IF_TOS(x) |
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#define TOS (sp[0]) |
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#endif |
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#ifdef USE_FTOS |
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#define IF_FTOS(x) x |
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#else |
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#define IF_FTOS(x) |
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#define FTOS (fp[0]) |
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#endif |
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Cell *SP; |
Cell *SP; |
Float *FP; |
Float *FP; |
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Address UP=NULL; |
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#if 0 |
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/* not used currently */ |
int emitcounter; |
int emitcounter; |
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#endif |
#define NULLC '\0' |
#define NULLC '\0' |
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char *cstr(Char *from, UCell size, int clear) |
char *cstr(Char *from, UCell size, int clear) |
/* if clear is true, scratch can be reused, otherwise we want more of |
/* return a C-string corresponding to the Forth string ( FROM SIZE ). |
the same */ |
the C-string lives until the next call of cstr with CLEAR being true */ |
{ |
{ |
static char *scratch=NULL; |
static struct cstr_buffer { |
static unsigned scratchsize=0; |
char *buffer; |
static char *nextscratch; |
size_t size; |
char *oldnextscratch; |
} *buffers=NULL; |
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static int nbuffers=0; |
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static int used=0; |
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struct cstr_buffer *b; |
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if (buffers==NULL) |
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buffers=malloc(0); |
if (clear) |
if (clear) |
nextscratch=scratch; |
used=0; |
if (scratch==NULL) { |
if (used>=nbuffers) { |
scratch=malloc(size+1); |
buffers=realloc(buffers,sizeof(struct cstr_buffer)*(used+1)); |
nextscratch=scratch; |
buffers[used]=(struct cstr_buffer){malloc(0),0}; |
scratchsize=size; |
nbuffers=used+1; |
} |
} |
else if (nextscratch+size>scratch+scratchsize) { |
b=&buffers[used]; |
char *oldscratch=scratch; |
if (size+1 > b->size) { |
scratch = realloc(scratch, (nextscratch-scratch)+size+1); |
b->buffer = realloc(b->buffer,size+1); |
nextscratch=scratch+(nextscratch-oldscratch); |
b->size = size+1; |
scratchsize=size; |
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} |
} |
memcpy(nextscratch,from,size); |
memcpy(b->buffer,from,size); |
nextscratch[size]='\0'; |
b->buffer[size]='\0'; |
oldnextscratch = nextscratch; |
used++; |
nextscratch += size+1; |
return b->buffer; |
return oldnextscratch; |
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} |
} |
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char *tilde_cstr(Char *from, UCell size, int clear) |
char *tilde_cstr(Char *from, UCell size, int clear) |
Line 127 char *tilde_cstr(Char *from, UCell size,
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Line 109 char *tilde_cstr(Char *from, UCell size,
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return cstr(from, size, clear); |
return cstr(from, size, clear); |
if (size<2 || from[1]=='/') { |
if (size<2 || from[1]=='/') { |
s1 = (char *)getenv ("HOME"); |
s1 = (char *)getenv ("HOME"); |
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if(s1 == NULL) |
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s1 = ""; |
s2 = from+1; |
s2 = from+1; |
s2_len = size-1; |
s2_len = size-1; |
} else { |
} else { |
int i; |
UCell i; |
for (i=1; i<size && from[i]!='/'; i++) |
for (i=1; i<size && from[i]!='/'; i++) |
; |
; |
{ |
{ |
Line 165 char *tilde_cstr(Char *from, UCell size,
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Line 149 char *tilde_cstr(Char *from, UCell size,
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static char* fileattr[6]={"r","rb","r+","r+b","w","wb"}; |
static char* fileattr[6]={"r","rb","r+","r+b","w","wb"}; |
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static Address up0=NULL; |
#ifndef O_BINARY |
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#define O_BINARY 0 |
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#endif |
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#ifndef O_TEXT |
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#define O_TEXT 0 |
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#endif |
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static int ufileattr[6]= { |
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O_RDONLY|O_TEXT, O_RDONLY|O_BINARY, |
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O_RDWR |O_TEXT, O_RDWR |O_BINARY, |
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O_WRONLY|O_TEXT, O_WRONLY|O_BINARY }; |
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/* if machine.h has not defined explicit registers, define them as implicit */ |
/* if machine.h has not defined explicit registers, define them as implicit */ |
#ifndef IPREG |
#ifndef IPREG |
Line 217 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 211 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#ifdef CFA_NEXT |
#ifdef CFA_NEXT |
register Xt cfa CFAREG; |
register Xt cfa CFAREG; |
#endif |
#endif |
register Address up UPREG = up0; |
register Address up UPREG = UP; |
IF_TOS(register Cell TOS TOSREG;) |
IF_TOS(register Cell TOS TOSREG;) |
IF_FTOS(register Float FTOS FTOSREG;) |
IF_FTOS(register Float FTOS FTOSREG;) |
static Label symbols[]= { |
static Label symbols[]= { |
Line 236 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 230 Label *engine(Xt *ip0, Cell *sp0, Cell *
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(Label)0, |
(Label)0, |
#endif |
#endif |
#include "prim_labels.i" |
#include "prim_labels.i" |
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(Label)0 |
}; |
}; |
#ifdef CPU_DEP2 |
#ifdef CPU_DEP2 |
CPU_DEP2 |
CPU_DEP2 |