version 1.8, 1998/12/12 22:32:05
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version 1.16, 2000/05/16 09:51:21
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Line 80 int emitcounter;
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Line 80 int emitcounter;
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#endif |
#endif |
#define NULLC '\0' |
#define NULLC '\0' |
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#ifdef MEMCMP_AS_SUBROUTINE |
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extern int gforth_memcmp(const char * s1, const char * s2, size_t n); |
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#define memcmp(s1,s2,n) gforth_memcmp(s1,s2,n) |
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#endif |
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#ifdef HAS_FILE |
char *cstr(Char *from, UCell size, int clear) |
char *cstr(Char *from, UCell size, int clear) |
/* return a C-string corresponding to the Forth string ( FROM SIZE ). |
/* return a C-string corresponding to the Forth string ( FROM SIZE ). |
the C-string lives until the next call of cstr with CLEAR being true */ |
the C-string lives until the next call of cstr with CLEAR being true */ |
Line 112 char *cstr(Char *from, UCell size, int c
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Line 118 char *cstr(Char *from, UCell size, int c
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return b->buffer; |
return b->buffer; |
} |
} |
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#ifdef STANDALONE |
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char *tilde_cstr(Char *from, UCell size, int clear) |
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{ |
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return cstr(from, size, clear); |
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} |
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#else |
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char *tilde_cstr(Char *from, UCell size, int clear) |
char *tilde_cstr(Char *from, UCell size, int clear) |
/* like cstr(), but perform tilde expansion on the string */ |
/* like cstr(), but perform tilde expansion on the string */ |
{ |
{ |
Line 137 char *tilde_cstr(Char *from, UCell size,
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Line 137 char *tilde_cstr(Char *from, UCell size,
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UCell i; |
UCell i; |
for (i=1; i<size && from[i]!='/'; i++) |
for (i=1; i<size && from[i]!='/'; i++) |
; |
; |
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if (i==2 && from[1]=='+') /* deal with "~+", i.e., the wd */ |
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return cstr(from+3, size<3?0:size-3,clear); |
{ |
{ |
char user[i]; |
char user[i]; |
memcpy(user,from+1,i-1); |
memcpy(user,from+1,i-1); |
Line 159 char *tilde_cstr(Char *from, UCell size,
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Line 161 char *tilde_cstr(Char *from, UCell size,
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return cstr(path,s1_len+s2_len,clear); |
return cstr(path,s1_len+s2_len,clear); |
} |
} |
} |
} |
#endif |
#endif |
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#define NEWLINE '\n' |
#define NEWLINE '\n' |
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Line 167 char *tilde_cstr(Char *from, UCell size,
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Line 169 char *tilde_cstr(Char *from, UCell size,
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#define rint(x) floor((x)+0.5) |
#define rint(x) floor((x)+0.5) |
#endif |
#endif |
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static char* fileattr[6]={"r","rb","r+","r+b","w","wb"}; |
#ifdef HAS_FILE |
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static char* fileattr[6]={"rb","rb","r+b","r+b","wb","wb"}; |
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#ifndef O_BINARY |
#ifndef O_BINARY |
#define O_BINARY 0 |
#define O_BINARY 0 |
Line 177 static char* fileattr[6]={"r","rb","r+",
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Line 180 static char* fileattr[6]={"r","rb","r+",
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#endif |
#endif |
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static int ufileattr[6]= { |
static int ufileattr[6]= { |
O_RDONLY|O_TEXT, O_RDONLY|O_BINARY, |
O_RDONLY|O_BINARY, O_RDONLY|O_BINARY, |
O_RDWR |O_TEXT, O_RDWR |O_BINARY, |
O_RDWR |O_BINARY, O_RDWR |O_BINARY, |
O_WRONLY|O_TEXT, O_WRONLY|O_BINARY }; |
O_WRONLY|O_BINARY, O_WRONLY|O_BINARY }; |
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#endif |
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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 216 static int ufileattr[6]= {
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Line 220 static int ufileattr[6]= {
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/* declare and compute cfa for certain threading variants */ |
/* declare and compute cfa for certain threading variants */ |
/* warning: this is nonsyntactical; it will not work in place of a statement */ |
/* warning: this is nonsyntactical; it will not work in place of a statement */ |
#ifdef CFA_NEXT |
#ifndef GETCFA |
#define DOCFA |
#define DOCFA |
#else |
#else |
#define DOCFA Xt cfa; GETCFA(cfa) |
#define DOCFA Xt cfa; GETCFA(cfa) |
#endif |
#endif |
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#ifdef GFORTH_DEBUGGING |
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/* define some VM registers as global variables, so they survive exceptions; |
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global register variables are not up to the task (according to the |
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GNU C manual) */ |
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Xt *ip; |
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Cell *rp; |
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#endif |
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Label *engine(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0) |
Label *engine(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0) |
/* executes code at ip, if ip!=NULL |
/* executes code at ip, if ip!=NULL |
returns array of machine code labels (for use in a loader), if ip==NULL |
returns array of machine code labels (for use in a loader), if ip==NULL |
*/ |
*/ |
{ |
{ |
register Xt *ip IPREG = ip0; |
#ifndef GFORTH_DEBUGGING |
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register Xt *ip IPREG; |
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register Cell *rp RPREG; |
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#endif |
register Cell *sp SPREG = sp0; |
register Cell *sp SPREG = sp0; |
register Cell *rp RPREG = rp0; |
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register Float *fp FPREG = fp0; |
register Float *fp FPREG = fp0; |
register Address lp LPREG = lp0; |
register Address lp LPREG = lp0; |
#ifdef CFA_NEXT |
#ifdef CFA_NEXT |
register Xt cfa CFAREG; |
register Xt cfa CFAREG; |
#endif |
#endif |
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#ifdef MORE_VARS |
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MORE_VARS |
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#endif |
register Address up UPREG = UP; |
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;) |
Line 261 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 278 Label *engine(Xt *ip0, Cell *sp0, Cell *
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CPU_DEP2 |
CPU_DEP2 |
#endif |
#endif |
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ip = ip0; |
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rp = rp0; |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"ip=%x, sp=%x, rp=%x, fp=%x, lp=%x, up=%x\n", |
fprintf(stderr,"ip=%x, sp=%x, rp=%x, fp=%x, lp=%x, up=%x\n", |
(unsigned)ip,(unsigned)sp,(unsigned)rp, |
(unsigned)ip,(unsigned)sp,(unsigned)rp, |
Line 291 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 310 Label *engine(Xt *ip0, Cell *sp0, Cell *
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IF_TOS(TOS = sp[0]); |
IF_TOS(TOS = sp[0]); |
IF_FTOS(FTOS = fp[0]); |
IF_FTOS(FTOS = fp[0]); |
/* prep_terminal(); */ |
/* prep_terminal(); */ |
NEXT_P0; |
SET_IP(ip); |
NEXT; |
NEXT; |
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#ifdef CPU_DEP3 |
#ifdef CPU_DEP3 |
CPU_DEP3 |
CPU_DEP3 |
#endif |
#endif |
Line 307 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 327 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#ifdef CISC_NEXT |
#ifdef CISC_NEXT |
/* this is the simple version */ |
/* this is the simple version */ |
*--rp = (Cell)ip; |
*--rp = (Cell)ip; |
ip = (Xt *)PFA1(cfa); |
SET_IP((Xt *)PFA1(cfa)); |
NEXT_P0; |
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NEXT; |
NEXT; |
#else |
#else |
/* this one is important, so we help the compiler optimizing |
/* this one is important, so we help the compiler optimizing */ |
The following version may be better (for scheduling), but probably has |
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problems with code fields employing calls and delay slots |
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*/ |
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{ |
{ |
DEF_CA |
DEF_CA |
Xt *current_ip = (Xt *)PFA1(cfa); |
rp[-1] = (Cell)ip; |
cfa = *current_ip; |
SET_IP((Xt *)PFA1(cfa)); |
NEXT1_P1; |
NEXT_P1; |
*--rp = (Cell)ip; |
rp--; |
ip = current_ip+1; |
NEXT_P2; |
NEXT1_P2; |
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} |
} |
#endif |
#endif |
} |
} |
Line 390 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 405 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08lx: field: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
fprintf(stderr,"%08lx: field: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
#endif |
#endif |
TOS += *(Cell*)PFA1(cfa); |
TOS += *(Cell*)PFA1(cfa); |
} |
} |
NEXT_P0; |
NEXT_P0; |
NEXT; |
NEXT; |
Line 423 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 438 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#endif |
#endif |
*--rp = (Cell)ip; |
*--rp = (Cell)ip; |
/* PFA1 might collide with DOES_CODE1 here, so we use PFA */ |
/* PFA1 might collide with DOES_CODE1 here, so we use PFA */ |
ip = DOES_CODE1(cfa); |
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#ifdef USE_TOS |
#ifdef USE_TOS |
*sp-- = TOS; |
*sp-- = TOS; |
TOS = (Cell)PFA(cfa); |
TOS = (Cell)PFA(cfa); |
#else |
#else |
*--sp = (Cell)PFA(cfa); |
*--sp = (Cell)PFA(cfa); |
#endif |
#endif |
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SET_IP(DOES_CODE1(cfa)); |
/* fprintf(stderr,"TOS = %08lx, IP=%08lx\n", TOS, IP);*/ |
/* fprintf(stderr,"TOS = %08lx, IP=%08lx\n", TOS, IP);*/ |
} |
} |
NEXT_P0; |
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NEXT; |
NEXT; |
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#include "prim.i" |
#include "prim.i" |