**
***************************************************************/
-#ifndef AMIGA
-#include <sys/types.h>
-#else
-typedef long off_t;
-#endif
-
#include "pf_all.h"
#if defined(WIN32) && !defined(__MINGW32__)
#define M_DUP PUSH_TOS;
#define M_DROP { TOS = M_POP; }
+#define ASCII_EOT (0x04)
/***************************************************************
** Macros for Floating Point stack access.
/* Use local copy of CODE_BASE for speed. */
#define LOCAL_CODEREL_TO_ABS( a ) ((cell_t *) (((cell_t) a) + CodeBase))
-static const char *pfSelectFileModeCreate( int fam );
-static const char *pfSelectFileModeOpen( int fam );
+/* Truncate the unsigned double cell integer LO/HI to an uint64_t. */
+static uint64_t UdToUint64( ucell_t Lo, ucell_t Hi )
+{
+ return (( 2 * sizeof(ucell_t) == sizeof(uint64_t) )
+ ? (((uint64_t)Lo) | (((uint64_t)Hi) >> (sizeof(ucell_t) * 8)))
+ : Lo);
+}
+
+/* Return TRUE if the unsigned double cell integer LO/HI is not greater
+ * then the greatest uint64_t.
+ */
+static int UdIsUint64( ucell_t Lo, ucell_t Hi )
+{
+ return (( 2 * sizeof(ucell_t) == sizeof(uint64_t) )
+ ? TRUE
+ : Hi == 0);
+}
+
+static const char *pfSelectFileModeCreate( cell_t fam );
+static const char *pfSelectFileModeOpen( cell_t fam );
/**************************************************************/
-static const char *pfSelectFileModeCreate( int fam )
+static const char *pfSelectFileModeCreate( cell_t fam )
{
const char *famText = NULL;
switch( fam )
}
/**************************************************************/
-static const char *pfSelectFileModeOpen( int fam )
+static const char *pfSelectFileModeOpen( cell_t fam )
{
const char *famText = NULL;
switch( fam )
}
/**************************************************************/
-int pfCatch( ExecToken XT )
+ThrowCode pfCatch( ExecToken XT )
{
register cell_t TopOfStack; /* Cache for faster execution. */
register cell_t *DataStackPtr;
endcase;
case ID_BYE:
+ EMIT_CR;
M_THROW( THROW_BYE );
endcase;
/* 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 = (file_offset_t)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;
}
endcase;
+ case ID_FILE_RESIZE: /* ( ud fileid -- ior ) */
+ {
+ FileStream *File = (FileStream *) TOS;
+ ucell_t SizeHi = (ucell_t) M_POP;
+ ucell_t SizeLo = (ucell_t) M_POP;
+ TOS = ( UdIsUint64( SizeLo, SizeHi )
+ ? sdResizeFile( File, UdToUint64( SizeLo, SizeHi ))
+ : THROW_RESIZE_FILE );
+ }
+ endcase;
+
case ID_FILL: /* ( caddr num charval -- ) */
{
register char *DstPtr;
case ID_KEY:
PUSH_TOS;
TOS = ioKey();
+ if (TOS == ASCII_EOT) {
+ M_THROW(THROW_BYE);
+ }
endcase;
#ifndef PF_NO_SHELL