6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2025-01-12 17:30:50 +00:00
Code Issues Projects Releases Wiki Activity

Added several functions to the intstack module.

Browse Source 
git-svn-id: svn://svn.cc65.org/cc65/trunk@4643 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2010-04-18 18:40:59 +00:00
parent 48c647b6bd
commit 922cbf08eb
2 changed files with 37 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
src/common/intstack.c
View File

@ -6,10 +6,10 @@
/* */
/* */
/* */
/* (C) 2004 Ullrich von Bassewitz */
/* Römerstraße 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* (C) 2004-2010, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
@ -48,7 +48,7 @@
long IS_Get (const IntStack* S)
/* Get the value on top of an int stack */
{
CHECK (S->Count > 0);
PRECONDITION (S->Count > 0);
return S->Stack[S->Count-1];
}
@ -57,7 +57,7 @@ long IS_Get (const IntStack* S)
void IS_Set (IntStack* S, long Val)
/* Set the value on top of an int stack */
{
CHECK (S->Count > 0);
PRECONDITION (S->Count > 0);
S->Stack[S->Count-1] = Val;
}
@ -66,7 +66,7 @@ void IS_Set (IntStack* S, long Val)
void IS_Drop (IntStack* S)
/* Drop a value from an int stack */
{
CHECK (S->Count > 1);
PRECONDITION (S->Count > 0);
--S->Count;
}
@ -75,9 +75,18 @@ void IS_Drop (IntStack* S)
void IS_Push (IntStack* S, long Val)
/* Push a value onto an int stack */
{
CHECK (S->Count < sizeof (S->Stack) / sizeof (S->Stack[0]));
PRECONDITION (S->Count < sizeof (S->Stack) / sizeof (S->Stack[0]));
S->Stack[S->Count++] = Val;
}
long IS_Pop (IntStack* S)
/* Pop a value from an int stack */
{
PRECONDITION (S->Count > 0);
return S->Stack[--S->Count];
}

24
src/common/intstack.h
View File

@ -6,10 +6,10 @@
/* */
/* */
/* */
/* (C) 2004 Ullrich von Bassewitz */
/* Römerstraße 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* (C) 2004-2010, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
@ -54,6 +54,9 @@ struct IntStack {
long Stack[8];
};
/* An initializer for an empty int stack */
#define STATIC_INTSTACK_INITIALIZER { 0, { 0, 0, 0, 0, 0, 0, 0, 0 } }
/* Declare an int stack with the given value as first element */
#define INTSTACK(Val) { 1, { Val, 0, 0, 0, 0, 0, 0, 0 } }
@ -75,6 +78,16 @@ INLINE int IS_IsFull (const IntStack* S)
# define IS_IsFull(S) ((S)->Count >= sizeof ((S)->Stack) / sizeof ((S)->Stack[0]))
#endif
#if defined(HAVE_INLINE)
INLINE int IS_IsEmpty (const IntStack* S)
/* Return true if there are no values on the given int stack */
{
return (S->Count == 0);
}
#else
# define IS_IsEmpty(S) ((S)->Count == 0)
#endif
#if defined(HAVE_INLINE)
INLINE unsigned IS_GetCount (const IntStack* S)
/* Return the number of elements on the given int stack */
@ -97,6 +110,9 @@ void IS_Drop (IntStack* S);
void IS_Push (IntStack* S, long Val);
/* Push a value onto an int stack */
long IS_Pop (IntStack* S);
/* Pop a value from an int stack */
/* End of intstack.h */