а пзу который считали с Квант8
есть такое

Код:
RAM:05E3          incExtRomADDR:                          ; CODE XREF: RAM:053Ap

RAM:05E3 13                       inc     de
RAM:05E4 1A                       ld      a, (de)
RAM:05E5 3C                       inc     a
RAM:05E6 12                       ld      (de), a
RAM:05E7 1B                       dec     de
RAM:05E8 C0                       ret     nz
RAM:05E9 13                       inc     de
RAM:05EA C3 EC 0C                 jp      incHIextRomAddr
RAM:05ED
RAM:05ED          incExtAddrend:                          ; CODE XREF: incExtRomADDR+70Ej
RAM:05ED                                                  ; incExtRomADDR+713j
RAM:05ED 12                       ld      (de), a
RAM:05EE 1B                       dec     de
RAM:05EF 1B                       dec     de
RAM:05F0 B8                       cp      b
RAM:05F1 C9                       ret
RAM:05F1          ; End of function incExtRomADDR

RAM:0CEC          incHIextRomAddr:                        ; CODE XREF: incExtRomADDR+7j
RAM:0CEC 13                       inc     de
RAM:0CED 1A                       ld      a, (de)
RAM:0CEE 3C                       inc     a
RAM:0CEF FE 20                    cp      20h ; ' '
RAM:0CF1 C2 ED 05                 jp      nz, incExtAddrend
RAM:0CF4 C6 20                    add     a, 20h ; ' '
RAM:0CF6 C3 ED 05                 jp      incExtAddrend