reentrant

i am using an 89v51rd2 controller with out external RAM, i use the following reentrant function for one of the functionalities, i cant avoid it because this function can be recursively called any no of times,

void reentrantfunction(unsigned char data1, unsigned char data2) compact reentrant
{ unsigned char local1, local2 = 0;

if(data2) statements;

switch(data2) { case 0: ……. break; ………… case 5: ….. break; } Function2();

for(local1=0; (local1<25); local1++) { Function3();

if(global1) { Global2[local2] = local1; local2++; } Global3 = xx; Function4(); } If (Local2) { Global4 +=1;

for(data2=0;data2<local2;data2++) { Rentrantfuncion (global2 [data2],global4); } Global4 -=1; }
}

this is how my startup file stack initialization looks like..

IBPSTACK EQU 0
IBPSTACKTOP EQU 0FFH+1

XBPSTACK EQU 0
XBPSTACKTOP EQU 0FFFFH+1

PBPSTACK EQU 1
PBPSTACKTOP EQU 02FFH+1

i am having problems with this function, the speed for now is not a concern but the functionality itself goes wrong somewhere.. does the code ring bells to anyone ??