Remote-processing RPC-330 Manuel d'utilisateur télécharger pdf (Page 21)

RAM MEMORY SECTION 5

Page 5-4 RPC-330

ASSEMBLY LANGUAGE INTERFACE

Assembly language programs must be placed in the

RPBASIC-52 EPROM . W hen using RPBASIC-52,

programs should start at addr ess 6000H or higher up to

7FFFH.

RPBASIC is norm ally in a 32K byte EPROM (27C256).

A 64K byte EPROM (27C512) may be used in socket U4

provided the following modification is made: Cut the

trace between W11 pins 1 and 2 on the circuit side.

(Jumper W11 is under socket U4. Pin 1 is designated by

the square pad.) Solder a jumper between W11 pin 2

and 3.

Docum ented assem bly language interface calls listed in

the Intel MCS BASIC-52 Users Manual will not work

with RPBASIC-52. This is because RPBASIC-52 has

been reassembled and code shifted around.

The RP-10 adapter boar d is used to run and debug

assembly and C code. This board plugs into RAM

socket U5 and RPBASIC socket U4. It does not use the

Basic at all.

COMMANDS

The following is a list of RPBASIC-52 commands used

with RAM.

Command Function

BLOAD Transfers data from EPROM to RAM

BSAVE Transfers data from RAM to EPROM

CALL Calls an assembly language routine

CBY Returns code memor y data

DBY Returns or assigns internal memory

MTOP Sets top of RAM memory

PEEK B Return s a byte

PEEK F Returns a floating point number

PEEK W Returns a 16 bit value

PEEK $ Returns a string

POKE B Stores a byte

POKE F Stores a floating point number

POKE W Stores a 16 bit value

POKE $ Stores a string

XBY Returns or assigns external memory

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Remote-processing RPC-330 Manuel d'utilisateur Page 21