6530 Programmer's Guide

Block Mode Operation
6530 Programmer’s Guide 3-33
where:
p1 = ASCII 0 or 1 (hex 30 or hex 31)
0 sets standard 6530 field attribute mapping as specified by Esc 6
codes.
1 sets enhanced color field support mapping for all video pages.
When enhanced color field support mapping is set and a 6530 field video
attribute is detected, the attribute is mapped according to the color
mapping table but with any new color palette settings.
Start Enhanced Color Field (Esc ’)
The new start field order takes the form: escape, back quote, video
attribute, data attribute one, data attribute two, pair count (two bytes
representing the hex value of the count of bytes of data to follow. Two
pairs of data are represented by a hex 30 followed by a hex 32, (ASCII 0
and ASCII 2).
Esc ’ vid1 da1 da2 pair cnt data
1B 60 vid1 da1 da2 cnt data (hex values)
where:
vid1 , da1 , and da2 have the same format and content as the
conventional Start Field Extended (ESC ] ) command parameters.
The character
’ is a hex 60.
data refers to the IBM 3270-style attribute pairs 42H (foreground
color) and 45H (background color). Either or both of these codes are
valid values in the data field, followed by the hex values of the
desired colors. Any other values are ignored.