61     sPtr->stackPtr = NULL;  in MTXInitStack()
90     if( sPtr->stackPtr == NULL )  in MTXPush()
92         sPtr->stackPtr = sPtr->stackBase;  in MTXPush()
93         MTXCopy( m, sPtr->stackPtr );  in MTXPush()
99         if( (u32)((sPtr->stackPtr - sPtr->stackBase) / MTX_PTR_OFFSET) >=  in MTXPush()
105     MTXCopy( m, (sPtr->stackPtr + MTX_PTR_OFFSET) );  in MTXPush()
106     sPtr->stackPtr += MTX_PTR_OFFSET;  in MTXPush()
110     return sPtr->stackPtr;  in MTXPush()
143     if( sPtr->stackPtr == NULL )  in MTXPushFwd()
145         sPtr->stackPtr = sPtr->stackBase;  in MTXPushFwd()
146         MTXCopy( m, sPtr->stackPtr );  in MTXPushFwd()
152         if( (u32)((sPtr->stackPtr - sPtr->stackBase) / MTX_PTR_OFFSET) >=  in MTXPushFwd()
158         MTXConcat( sPtr->stackPtr, m, ( sPtr->stackPtr + MTX_PTR_OFFSET ) );  in MTXPushFwd()
159         sPtr->stackPtr += MTX_PTR_OFFSET;  in MTXPushFwd()
163     return sPtr->stackPtr;  in MTXPushFwd()
205     if( sPtr->stackPtr == NULL )  in MTXPushInv()
207         sPtr->stackPtr = sPtr->stackBase;  in MTXPushInv()
208         MTXCopy( mInv, sPtr->stackPtr );  in MTXPushInv()
214         if( (u32)((sPtr->stackPtr - sPtr->stackBase) / MTX_PTR_OFFSET) >=  in MTXPushInv()
220         MTXConcat( mInv, sPtr->stackPtr, ( sPtr->stackPtr + MTX_PTR_OFFSET ) );  in MTXPushInv()
221         sPtr->stackPtr += MTX_PTR_OFFSET;  in MTXPushInv()
225     return sPtr->stackPtr;  in MTXPushInv()
269     if( sPtr->stackPtr == NULL )  in MTXPushInvXpose()
271         sPtr->stackPtr = sPtr->stackBase;  in MTXPushInvXpose()
272         MTXCopy( mIT, sPtr->stackPtr );  in MTXPushInvXpose()
278         if( (u32)((sPtr->stackPtr - sPtr->stackBase) / MTX_PTR_OFFSET) >=  in MTXPushInvXpose()
284         MTXConcat( sPtr->stackPtr, mIT, ( sPtr->stackPtr + MTX_PTR_OFFSET ) );  in MTXPushInvXpose()
285         sPtr->stackPtr += MTX_PTR_OFFSET;  in MTXPushInvXpose()
289     return sPtr->stackPtr;  in MTXPushInvXpose()
313     if( sPtr->stackPtr == NULL )  in MTXPop()
318     else if( sPtr->stackBase == sPtr->stackPtr )  in MTXPop()
320         sPtr->stackPtr = NULL;  in MTXPop()
325         sPtr->stackPtr -= MTX_PTR_OFFSET;  in MTXPop()
326         return sPtr->stackPtr;  in MTXPop()
350     return sPtr->stackPtr;  in MTXGetStackPtr()