HLASM Language Reference

ORG Instruction
3. Redefine the data (see ▌3▐ in Figure 57) to be assembled into that location.
4. After repeating the first three steps (see ▌4▐ in Figure 57) until your translate
table is complete, use an ORG instruction with a null operand field to alter the
location counter. The counter value then indicates the next available location
(see ▌5▐ in Figure 57) in the current control section (after the end of the
translate table).
Both the assembled object code for the whole table filled with zeros, and the object
code for the portions of the table you redefined, are printed in the program listings.
However, the data defined later is loaded over the previously defined zeros and
becomes part of your object program, instead of the zeros.
That is, the ORG instruction can cause the location counter to be set to any part of
a control section, even the middle of an instruction, into which you can assemble
data. It can also cause the location counter to be set to the next available location
so that your program can be assembled sequentially.
Source Module │ Object Code
─────────────────────────────────────────────────────┼────────────────────────
│
FIRST START │
. │
. │
▌1▐ TABLE DC XL256'' │ TABLE (in Hex)
▌2▐ ORG TABLE+ │ + ┌────┐
┌ DC C'' ▌3▐ │ │ F │
│ DC C'1' │ │ F1 │
│ . │ │ . │
│ . │ │ . │
│ ORG TABLE+13 │ +13 │ . │
│ DC C'D' │ │ C4 │
│ DC C'E' │ │ C5 │
│ . │ │ . │
│ . │ │ . │
▌4▐ ─┤ ORG TABLE+C'D' │ │ . │
│ DC AL1(13) │ +196 │ 13 │
│ DC AL1(14) │ │ 14 │
│ . │ │ . │
│ . │ │ . │
│ ORG TABLE+C'' │ +24 │ . │
│ DC AL1() │ │ │
│ DC AL1(1) │ │ 1 │
│ . │ │ │
└ . │ +255 └────┘
ORG
│
▌5▐ GOON DS H │
▲ . │
TABLE+256 . │
TR INPUT,TABLE │
. │
. │
INPUT DS CL2 │
. │
Figure 57. Building a Translate Table
. │
END
│
Chapter 5. Assembler Instruction Statements 203