SS format
3
in
the example of an SRP instruction), with a value 0 - 9, is specified
as a third operand. 




Symbols used to represent base registers (see BASE8
and BASE7
in
the instruction labeled ALPHA2
in the examples) in
explicit addresses are assumed to be equated to absolute values 0
- 15.
Symbols used to represent explicit lengths (see NINE
and SIX
in
the instruction labeled ALPHA2
in the examples) are
assumed to be equated to absolute values 0 - 256 for SS-format instructions
with one length specification, and 0 - 16 for SS-format instructions
with two length specifications.
Symbols used to represent implicit addresses (see FIELD1
and FIELD2
in
the instruction labeled ALPHA3
, and FIELD1,X'8'
in
the SRP instructions in the examples) can be either relocatable or
absolute.
Symbols used to represent displacements (see DISP40
and DISP30
in
the instruction labeled ALPHA5
in the examples) in
explicit addresses are assumed to be equated to absolute values 0
- 4095.
See topic Lengths for more information about the lengths of SS-format instructions.
ALPHA1 AP 40(9,8),30(6,7)
ALPHA2 AP 40(NINE,BASE8),30(SIX,BASE7)
ALPHA3 AP FIELD1,FIELD2
ALPHA4 AP AREA(9),AREA2(6)
ALPHA5 AP DISP40(,8),DISP30(,7)
BETA1 MVC 0(80,8),0(7)
BETA2 MVC DISP0(,8),DISP0(7)
BETA3 MVC TO,FROM
SRP FIELD1,X'8',3
ALPHA1
, in
hexadecimal, is: FA858028701E
where:
FA |
Is the operation code |
8 |
Is length L₁ |
5 |
Is length L₂ |
8 |
Is base register B₁ |
028 |
Is displacement D₁ from base register B₁ |
7 |
Is base register B₂ |
01E |
Is displacement D₂ from base register B₂ |
BETA1
, in
hexadecimal, is: D24F80007000
where:
D2 |
Is the operation code |
4F |
Is length L |
8 |
Is the base register B₁ |
000 |
Is displacement D₁ from base register B₁ |
7 |
Is base register B₂ |
000 |
Is displacement D₂ from base register B₂ |