Qume QVT-102 Guia de Instalação descarregar pdf (Página 14)

Type 'R' to read in a file followed by the name of your loader

file. For example, to work on the loader file for a system using

8" floppies with a CPU 8085/88, type "RLDRCCPM8.88":

-RLDRCCPM8.88

START END

8400:0000 8400:1F7F

(Listing locations 153F to 1542 will reveal two 16-bit

pointers, one used to compute the locations for the

initialization bytes for the console I/O and the other used

to compute the locations for the step rate for the boot

floppy. The pointers may change, but they will always be at

these locations.)

-S153F

8400:153F A9 --

8400:1540 19 --

8400:1541 88 --

8400:1542 1A --

8400:1543 81

(This pointer, 19A9, is added to 369H to compute

the location of the console I/O init. bytes.)

(This pointer, 1A88, is added to 300H to compute

the location of the floppy step rate.)

(The DDT86 "H" command can be used to add the offset of

369H.)

-H19A9,369

1D12 1641 (1D12 is the effective address.)

(Use the substitute mode to display the console I/O init.

bytes. A thorough explanation of these bytes is available

in the SYSTEM SUPPORT I technical manual. Type "s1D12".)

-S1D12

8400:1D12 5E

8400:1D13 5A

8400:1D14 5E

8400:1D15 7E

8400:1D16 5F

8400:1D17 27

8400:1D18 57

(SYSTEM SUPPORT 1 I/O port address.)

(mode register 1 init. byte)

(port address)

(mode register 2 init. byte; 7E for baud rate

of 9600, 7F for 19.2K)

(port address)

(command byte)

(Use the "H" command again to add 1A88 and 300)

-H1A88,300

1D88 1788

(1D88 is the effective address.)

(List the step rate byte in the substitute mode; type

"slD88".)

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 22 23

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