86     sPtr->stackPtr = NULL;  in MTXInitStack()
115     if( sPtr->stackPtr == NULL )  in MTXPush()
117         sPtr->stackPtr = sPtr->stackBase;  in MTXPush()
118         MTXCopy( m, sPtr->stackPtr );  in MTXPush()
124         if( (u32)((sPtr->stackPtr - sPtr->stackBase) / MTX_PTR_OFFSET) >=  in MTXPush()
130     MTXCopy( m, (sPtr->stackPtr + MTX_PTR_OFFSET) );  in MTXPush()
131     sPtr->stackPtr += MTX_PTR_OFFSET;  in MTXPush()
135     return sPtr->stackPtr;  in MTXPush()
168     if( sPtr->stackPtr == NULL )  in MTXPushFwd()
170         sPtr->stackPtr = sPtr->stackBase;  in MTXPushFwd()
171         MTXCopy( m, sPtr->stackPtr );  in MTXPushFwd()
177         if( (u32)((sPtr->stackPtr - sPtr->stackBase) / MTX_PTR_OFFSET) >=  in MTXPushFwd()
183         MTXConcat( sPtr->stackPtr, m, ( sPtr->stackPtr + MTX_PTR_OFFSET ) );  in MTXPushFwd()
184         sPtr->stackPtr += MTX_PTR_OFFSET;  in MTXPushFwd()
188     return sPtr->stackPtr;  in MTXPushFwd()
230     if( sPtr->stackPtr == NULL )  in MTXPushInv()
232         sPtr->stackPtr = sPtr->stackBase;  in MTXPushInv()
233         MTXCopy( mInv, sPtr->stackPtr );  in MTXPushInv()
239         if( (u32)((sPtr->stackPtr - sPtr->stackBase) / MTX_PTR_OFFSET) >=  in MTXPushInv()
245         MTXConcat( mInv, sPtr->stackPtr, ( sPtr->stackPtr + MTX_PTR_OFFSET ) );  in MTXPushInv()
246         sPtr->stackPtr += MTX_PTR_OFFSET;  in MTXPushInv()
250     return sPtr->stackPtr;  in MTXPushInv()
294     if( sPtr->stackPtr == NULL )  in MTXPushInvXpose()
296         sPtr->stackPtr = sPtr->stackBase;  in MTXPushInvXpose()
297         MTXCopy( mIT, sPtr->stackPtr );  in MTXPushInvXpose()
303         if( (u32)((sPtr->stackPtr - sPtr->stackBase) / MTX_PTR_OFFSET) >=  in MTXPushInvXpose()
309         MTXConcat( sPtr->stackPtr, mIT, ( sPtr->stackPtr + MTX_PTR_OFFSET ) );  in MTXPushInvXpose()
310         sPtr->stackPtr += MTX_PTR_OFFSET;  in MTXPushInvXpose()
314     return sPtr->stackPtr;  in MTXPushInvXpose()
338     if( sPtr->stackPtr == NULL )  in MTXPop()
343     else if( sPtr->stackBase == sPtr->stackPtr )  in MTXPop()
345         sPtr->stackPtr = NULL;  in MTXPop()
350         sPtr->stackPtr -= MTX_PTR_OFFSET;  in MTXPop()
351         return sPtr->stackPtr;  in MTXPop()
375     return sPtr->stackPtr;  in MTXGetStackPtr()