Colors; Support For The Ibm 3270 Models 2, 3, 4, And 5 - IBM 3708 Description

Colors
The 3708 provides four-color support for certain classes of ASCII terminals that
allow colors. (See "Color and Highlighting Restrictions" on page 4-68 for more
information.) The IBM 3164 terminal allows colors and FTTERM has a
color-terminal definition (terminal type lA). User-defined tables may be set up to
make use of a terminal's 'ability to display colors. See "The Terminal Table Format"
on page 4-54 for a description of the terminal tables.
The field attribute character is used to assign color to each display field. The fields
are defined in one of four colors - red, blue, green, or white - depending on the
protect and intensify bits, as shown in the chart in Table 4-7. (For terminals that
support color, the terminal tables contain control sequences for "Set Color 1", "Set
Color 2", "Set Color 3", and "Set Color 4". These are used to determine the field's
color as shown in the following table.) The integrity of the unprotected/protected
attribute is preserved; the operator can enter data only into an unprotected field.
Table 4-7. Protected and Unprotected Fields
Attribute Bits
3274 3708
Attribute
2 3 4
5 Color Color
Unprotected 0 X 0 X green color 1
No highlight
Unprotected
0 X 1 X
red
color 2
Highlighted
Protected
1 X 0 X blue color 3
No highlight
Protected
1 X 1 X
white
color 4
Highlighted
For some displays that have both highlighting and color sequences defined in the
terminal table, the 3708 supports a 2/4 color toggle function. Refer to "2/4 Color
Toggle" on page 4-52 for more information.
Support for the IBM 3270 Models 2, 3, 4, and 5
The 3708 provides support for large screen sizes similar to the 3270 Models 2, 3, 4,
and 5. These screen sizes are:
Model
2
3
4
5
Rows
x
Columns
24
x
80
32 x 80
43 x 80
27 x 132
The 3708 allows dynamic selection of the screen size to be used in the SNA LU_2
protocol conversion session if all of the following are true:
• The terminal table is configured to allow it
• The port has been configured to allow it
• The terminal has the capability and is appropriately set up
• The BIND specifies a larger screen size.
Chapter 4. Protocol Conversion Mode
4-33