;-------------------------------
; #T11DISKVOL
; capture disk volume number after reading T11,S00
;-------------------------------
!zone {
         lda   gTrack
         cmp   #$11
         bne   .exit
         lda   gTriedUniv
         beq   .exit
         lda   gIsPanglosDOS
         beq   .yes
         lda   jCallRWTS+2; #$3D or #$BD
         sec
         sbc   #$04       ; #$39 or #$B9
         ldx   #$80
         ldy   #$03
         jsr   CompareMemory
         !byte $99,$2C,$00; STA $002C,Y
         bcs   .exit
.yes
         lda   $2F        ; disk volume number of last sector read
         sta   gDiskVolumeNumber
         lda   #TRUE
         sta   gCapturedDiskVolumeNumber
.exit
}