$22-$25/34-37:   Utility Pointer Area
 $22-$23/34-35:   First Utility Pointer
 $24-$25/36-37:   Second Utility Pointer

Kernal-Reference:

 ADC $22     : $A4D8 $A54B $ADED $B5A6 $B5F9 $B71D $B7C2
 CPX $22     : $A403
 INC $22     : $AE3C
 JMP ($0022) : $AE55
 LDA $22     : $A98B $B5EA
     ($22),Y : $A456 $A4DF $A53E $A545 $AA1D $AB2B $B583 $B587 $B58B $B592
               $B59F $B5BD $B5C2 $B5C7 $B5CC $B5D0 $B691 $B6B4 $B6B8 $B6BC
               $B792 $BA92 $BA97 $BA9C $BAA1 $BAB0 $BBA8 $BBAD $BBB2 $BBB7
               $BBC0 $E0A7 $E0AC $E0B2 $E0B7
 LDX $22     : $B7BD $E25D
 LDY $22     : $B2A4 $B31E
 ROL $22     : $A982 $A985
 SBC $22     : $A3D3 $A3DE
 STA $22     : $A3C4 $A400 $A440 $A4B1 $A537 $A784 $A979 $ADEA $AE3A $B540
               $B555 $B57D $B5A8 $B5FB $B6AA $B71F $BA8C $BBA2
     ($22),Y : $A550 $A557 $BBDF $BBE4 $BBE9 $BBF2 $BBF7
 STX $22     : $A559 $B688 $B6D6 $BBD7 $E0A1
 STY $22     : $B34C

 DEC $23     : $A4DC
 INC $23     : $A4E6 $B5AC $B5FF $B723
 LDA $23     : $A552
 LDX $23     : $B5AE $B5EC $B601 $B7C6
 LDY $23     : $E25F
 STA $23     : $A445 $A4AD $A55B $AE3F
 STX $23     : $B542 $B557 $B57F
 STY $23     : $A539 $A786 $B68A $B6AC $B6D8 $BA8E $BBA4 $BBD9 $E0A3

 LDA ($24),Y : $B7D1 $BC61 $BC67 $BC71 $BC7A $BC81 $BC8C
 STA $24     : $A4C1 $AD3D $B7C4 $BC5B
     ($24),Y : $A4E1 $B7D5 $B7E0

 DEC $25     : $A4D5
 INC $25     : $A4E8
 STA $25     : $A4B5
 STX $25     : $B7CD
 STY $25     : $BC5D

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