while (( getline > 0 ) && ( $3 != "TC" )) {

doal   cont   pegc   system1   call7   solh
RX SYSTEM CFO
DATE 322:47:34

DPORQ = 0        TTORQ = 0        DPINRQ= 0
MFINRQ= 0        CDIRR = 0        TCBSY = 0
TCINT = 0        TCANS = 0        TCRNG = 0
RPINRQ= 0        C6INRQ= 0        ISUPRQ= 11147
TUPRQ = 0        MFOURQ= 0        C6OURQ= 0
ISUPOR= 17417    BICCRQ= 0        BICCOR= 0
POVFL = 0

doal   cont   pegc   system1   call7   solh
RX SYSTEM DAX
DATE 322:47:34

proc   cpu    systm    load     sactv    orig    ovldpu   mmst
1      0        0        0        0        0        0        0
2      0        0        0        0        0        0        0
3      0        0        0        0        0        0        0
4      0        0        0        0        0        0        0
5      0        0        0        0        0        0        0
6      0        0        0        0        0        0        0
7      0        0        0        0        0        0        0
8      0        0        0        0        0        0        0
9      0        0        0        0        0        0        0
10     0        0        0        0        0        0        0
11     0        0        0        0        0        0        0

doal   cont   pegc   system1   call7   solh
RX SYSTEM TC
DATE 322:47:34

proc     pucco    load     chgro    chmert   chinc    chout    ceqpu
22       2        97       0        0        2707     6374     0
1        3        15011    0        0        2717     6651     0
2        3        12976    0        0        2139     6137     0
3        3        13898    0        0        2199     6583     0
4        3        15123    0        0        2478     7788     0
5        3        13823    0        0        2645     5789     0

/usr/xpg4/bin/awk '

$3 == "CFO"    { cFO() } 
$3 == "DAX"    { dAX() } 
$3 == "TC"     { tC()  } 


function dAX(     _xm)
{
   while (( getline > 0 ) && ( $3 != "TC" )) {

do a a lot of awk stuff here....
.
.
.
.
.
   }
}

function tC(     _msx)
{
   while (( getline > 0 ) && ( $3 != "OND" )) {

do a a lot of awk stuff here....
.
.
.
.
.
   }
}

function cFO(     _iu)
{
   while (( getline > 0 ) && ( $3 != "DAX" )) {

do a a lot of awk stuff here....
.
.
.
.
.
   }
} FILENAME