**
***************************************************************/
-#ifndef AMIGA
-#include <sys/types.h>
-#else
-typedef long off_t;
-#endif
-
#include "pf_all.h"
#if defined(WIN32) && !defined(__MINGW32__)
/* Calculate product sign: */
sg = ((cell_t)(ahi ^ bhi) < 0);
/* Take absolute values and reduce to um* */
- if ((cell_t)ahi < 0) ahi = (ucell_t)(-ahi);
- if ((cell_t)bhi < 0) bhi = (ucell_t)(-bhi);
+ if ((cell_t)ahi < 0) ahi = (ucell_t)(-(cell_t)ahi);
+ if ((cell_t)bhi < 0) bhi = (ucell_t)(-(cell_t)bhi);
/* Break into hi and lo 16 bit parts. */
alo = LOWER_HALF(ahi);
Scratch = M_POP;
CharPtr = (char *) M_POP;
Temp = sdReadFile( CharPtr, 1, Scratch, FileID );
+ /* TODO check feof() or ferror() */
M_PUSH(Temp);
TOS = 0;
endcase;
+ /* TODO Why does this crash when passed an illegal FID? */
case ID_FILE_SIZE: /* ( fid -- ud ior ) */
/* Determine file size by seeking to end and returning position. */
FileID = (FileStream *) TOS;
{
- off_t endposition, offsetHi;
- off_t original = sdTellFile( FileID );
- sdSeekFile( FileID, 0, PF_SEEK_END );
- endposition = sdTellFile( FileID );
- M_PUSH(endposition);
- /* Just use a 0 if they are the same size. */
- offsetHi = (sizeof(off_t) > sizeof(cell_t)) ? (endposition >> (8*sizeof(cell_t))) : 0 ;
- M_PUSH(offsetHi);
- sdSeekFile( FileID, original, PF_SEEK_SET );
- TOS = (original < 0) ? -4 : 0 ; /* !!! err num */
+ file_offset_t endposition = -1;
+ file_offset_t original = sdTellFile( FileID );
+ if (original >= 0)
+ {
+ sdSeekFile( FileID, 0, PF_SEEK_END );
+ endposition = sdTellFile( FileID );
+ /* Restore original position. */
+ sdSeekFile( FileID, original, PF_SEEK_SET );
+ }
+ if (endposition < 0)
+ {
+ M_PUSH(0); /* low */
+ M_PUSH(0); /* high */
+ TOS = -4; /* TODO proper error number */
+ }
+ else
+ {
+ M_PUSH(endposition); /* low */
+ /* We do not support double precision file offsets.*/
+ M_PUSH(0); /* high */
+ TOS = 0; /* OK */
+ }
}
endcase;
case ID_FILE_REPOSITION: /* ( ud fid -- ior ) */
{
- off_t offset;
+ file_offset_t offset;
+ cell_t offsetHigh;
+ cell_t offsetLow;
FileID = (FileStream *) TOS;
- offset = M_POP;
- /* Avoid compiler warnings on Mac. */
- offset = (sizeof(off_t) > sizeof(cell_t)) ? (offset << 8*sizeof(cell_t)) : 0 ;
- offset += M_POP;
+ offsetHigh = M_POP;
+ offsetLow = M_POP;
+ /* We do not support double precision file offsets in pForth.
+ * So check to make sure the high bits are not used.
+ */
+ if (offsetHigh != 0)
+ {
+ TOS = -3; /* TODO err num? */
+ break;
+ }
+ offset = offsetLow;
TOS = sdSeekFile( FileID, offset, PF_SEEK_SET );
}
endcase;
case ID_FILE_POSITION: /* ( fid -- ud ior ) */
{
- off_t position;
- off_t offsetHi;
+ file_offset_t position;
FileID = (FileStream *) TOS;
position = sdTellFile( FileID );
- M_PUSH(position);
- /* Just use a 0 if they are the same size. */
- offsetHi = (sizeof(off_t) > sizeof(cell_t)) ? (position >> (8*sizeof(cell_t))) : 0 ;
- M_PUSH(offsetHi);
- TOS = (position < 0) ? -4 : 0 ; /* !!! err num */
+ if (position < 0)
+ {
+ M_PUSH(0); /* low */
+ M_PUSH(0); /* high */
+ TOS = -4; /* TODO proper error number */
+ }
+ else
+ {
+ M_PUSH(position); /* low */
+ /* We do not support double precision file offsets.*/
+ M_PUSH(0); /* high */
+ TOS = 0; /* OK */
+ }
}
endcase;