Commodore PC - Page 283

211
n
d
n
Parameter
Definition
n
n
drive: A one-digit hexadecimal value that indi
cates which drive a file will be loaded
from or written to. The valid values are
0-3, where 0 = A:, 1 = B:, 2 = C:, 3 = D:.
byte A two-digit hexadecimal value placed in
or read from an address or register.
record 1-digit to 3-digit hexadecimal value that
indicates the logical record number on
the disk and the number of disk sectors
to be written or loaded. Logical records
correspond to sectors; however, since
they represent the entire disk space, their
numbering differs.
value A hexadecimal value of up to four digits
that specifies a port number or the
number of times a command should
repeat its functions.
address A two-part designation containing either
an alphabetic segment register or a four-
digit segment address plus an offset value.
You may omit the segment name or seg
ment address, in which case the default
segment DS is used for all commands
except G, L, T, U, and W, for which the
default segment is CS. All numeric values
are hexadecimal.
Following is an example address:
CS:0100
04BA:0100
Note that the colon is required between the segment name
(whether numeric or alphabetic) and the offset value.
o
n
range
Contains two addresses: for example,
address address \ or one address, an L,
and a value: for example, address L value
where value is the number of lines on
which the command should operate (L80
is assumed). The second type of range
cannot be used if another hexadecimal
value follows, since the hexadecimal
value would be interpreted as the second
address of the range.