X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=pp.h;h=bdc0b1a6c1c98e78d7dfc3128ed40c8302cea654;hb=2974eb7140e44d311c32f643620d4fb8c0f10cd3;hp=adf3cc9ed62033d1e4cc1280a99a56f58d76736f;hpb=d28f7c377ae191ca53d9157f124642cf323614a0;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/pp.h b/pp.h
index adf3cc9..bdc0b1a 100644
--- a/pp.h
+++ b/pp.h
@@ -1,6 +1,6 @@
 /*    pp.h
  *
- *    Copyright (c) 1991-1999, Larry Wall
+ *    Copyright (c) 1991-2000, Larry Wall
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -17,6 +17,38 @@
 
 #define PP(s) OP * Perl_##s(pTHX)
 
+/*
+=for apidoc AmU||SP
+Stack pointer.  This is usually handled by C<xsubpp>.  See C<dSP> and
+C<SPAGAIN>.
+
+=for apidoc AmU||MARK
+Stack marker variable for the XSUB.  See C<dMARK>.
+
+=for apidoc Ams||PUSHMARK
+Opening bracket for arguments on a callback.  See C<PUTBACK> and
+L<perlcall>.
+
+=for apidoc Ams||dSP
+Declares a local copy of perl's stack pointer for the XSUB, available via
+the C<SP> macro.  See C<SP>.
+
+=for apidoc Ams||dMARK
+Declare a stack marker variable, C<mark>, for the XSUB.  See C<MARK> and
+C<dORIGMARK>.
+
+=for apidoc Ams||dORIGMARK
+Saves the original stack mark for the XSUB.  See C<ORIGMARK>.
+
+=for apidoc AmU||ORIGMARK
+The original stack mark for the XSUB.  See C<dORIGMARK>.
+
+=for apidoc Ams||SPAGAIN
+Refetch the stack pointer.  Used after a callback.  See L<perlcall>.
+
+=cut
+*/
+
 #define SP sp
 #define MARK mark
 #define TARG targ
@@ -52,6 +84,29 @@
 #define NORMAL PL_op->op_next
 #define DIE return Perl_die
 
+/*
+=for apidoc Ams||PUTBACK
+Closing bracket for XSUB arguments.  This is usually handled by C<xsubpp>.
+See C<PUSHMARK> and L<perlcall> for other uses.
+
+=for apidoc Amn|SV*|POPs
+Pops an SV off the stack.
+
+=for apidoc Amn|char*|POPp
+Pops a string off the stack.
+
+=for apidoc Amn|NV|POPn
+Pops a double off the stack.
+
+=for apidoc Amn|IV|POPi
+Pops an integer off the stack.
+
+=for apidoc Amn|long|POPl
+Pops a long off the stack.
+
+=cut
+*/
+
 #define PUTBACK		PL_stack_sp = sp
 #define RETURN		return PUTBACK, NORMAL
 #define RETURNOP(o)	return PUTBACK, o
@@ -64,6 +119,11 @@
 #define POPi		((IV)SvIVx(POPs))
 #define POPu		((UV)SvUVx(POPs))
 #define POPl		((long)SvIVx(POPs))
+#define POPul		((unsigned long)SvIVx(POPs))
+#ifdef HAS_QUAD
+#define POPq		((Quad_t)SvIVx(POPs))
+#define POPuq		((Uquad_t)SvUVx(POPs))
+#endif
 
 #define TOPs		(*sp)
 #define TOPp		(SvPV(TOPs, PL_na))		/* deprecated */
@@ -72,8 +132,65 @@
 #define TOPi		((IV)SvIV(TOPs))
 #define TOPu		((UV)SvUV(TOPs))
 #define TOPl		((long)SvIV(TOPs))
+#define TOPul		((unsigned long)SvUV(TOPs))
+#ifdef HAS_QUAD
+#define TOPq		((Quad_t)SvIV(TOPs))
+#define TOPuq		((Uquad_t)SvUV(TOPs))
+#endif
 
 /* Go to some pains in the rare event that we must extend the stack. */
+
+/*
+=for apidoc Am|void|EXTEND|SP|int nitems
+Used to extend the argument stack for an XSUB's return values. Once
+used, guarrantees that there is room for at least C<nitems> to be pushed
+onto the stack.
+
+=for apidoc Am|void|PUSHs|SV* sv
+Push an SV onto the stack.  The stack must have room for this element. 
+Does not handle 'set' magic.  See C<XPUSHs>.
+
+=for apidoc Am|void|PUSHp|char* str|STRLEN len
+Push a string onto the stack.  The stack must have room for this element.
+The C<len> indicates the length of the string.  Handles 'set' magic.  See
+C<XPUSHp>.
+
+=for apidoc Am|void|PUSHn|NV nv
+Push a double onto the stack.  The stack must have room for this element.
+Handles 'set' magic.  See C<XPUSHn>.
+
+=for apidoc Am|void|PUSHi|IV iv
+Push an integer onto the stack.  The stack must have room for this element.
+Handles 'set' magic.  See C<XPUSHi>.
+
+=for apidoc Am|void|PUSHu|UV uv
+Push an unsigned integer onto the stack.  The stack must have room for this
+element.  See C<XPUSHu>.
+
+=for apidoc Am|void|XPUSHs|SV* sv
+Push an SV onto the stack, extending the stack if necessary.  Does not
+handle 'set' magic.  See C<PUSHs>.
+
+=for apidoc Am|void|XPUSHp|char* str|STRLEN len
+Push a string onto the stack, extending the stack if necessary.  The C<len>
+indicates the length of the string.  Handles 'set' magic.  See
+C<PUSHp>.
+
+=for apidoc Am|void|XPUSHn|NV nv
+Push a double onto the stack, extending the stack if necessary.  Handles
+'set' magic.  See C<PUSHn>.
+
+=for apidoc Am|void|XPUSHi|IV iv
+Push an integer onto the stack, extending the stack if necessary.  Handles
+'set' magic. See C<PUSHi>.
+
+=for apidoc Am|void|XPUSHu|UV uv
+Push an unsigned integer onto the stack, extending the stack if necessary. 
+See C<PUSHu>.
+
+=cut
+*/
+
 #define EXTEND(p,n)	STMT_START { if (PL_stack_max - p < (n)) {		\
 			    sp = stack_grow(sp,p, (int) (n));		\
 			} } STMT_END
@@ -115,6 +232,12 @@
 #define dPOPiv		IV value = POPi
 #define dTOPuv		UV value = TOPu
 #define dPOPuv		UV value = POPu
+#ifdef HAS_QUAD
+#define dTOPqv		Quad_t value = TOPu
+#define dPOPqv		Quad_t value = POPu
+#define dTOPuqv		Uquad_t value = TOPuq
+#define dPOPuqv		Uquad_t value = POPuq
+#endif
 
 #define dPOPXssrl(X)	SV *right = POPs; SV *left = CAT2(X,s)
 #define dPOPXnnrl(X)	NV right = POPn; NV left = CAT2(X,n)
@@ -143,18 +266,6 @@
 #define dPOPTOPiirl	dPOPXiirl(TOP)
 #define dPOPTOPiirl_ul	dPOPXiirl_ul(TOP)
 
-#define TOPIOKbin (SvIOK(TOPs) && SvIOK(*(sp-1)))
-#define tryIVIVbin(op) \
-	if (TOPIOKbin) { \
-		dPOPTOPiirl_ul; \
-		NV result = (NV)left op (NV)right; \
-		if (result >= (NV)IV_MIN && result <= (NV)IV_MAX) \
-			SETi( left op right ); \
-		else \
-			SETn( result ); \
-		RETURN; \
-	}
-
 #define RETPUSHYES	RETURNX(PUSHs(&PL_sv_yes))
 #define RETPUSHNO	RETURNX(PUSHs(&PL_sv_no))
 #define RETPUSHUNDEF	RETURNX(PUSHs(&PL_sv_undef))