HP 262SA - Page 303

Graphics
Table D-7.
Characters Used in Packed Data Formats
ASCII
ASCII
Character
Bi t
Pattern Character Bit
Pattern
SP
01 o 0000 0 01 1
0000
!
01 o 0001
1
01 1
0001
..
01 o 0010
2
01
1
0010
#
01
o 0011
3
01
1
0011
$
01 o 0100
4
01
1
0100
/
01 o 0101
5
01 1
01 01
&
01
o 0110 6
01
1
0110
I
01 o 0111 7
01
1
0111
(
01 o 1000
a
01 1
1000
)
01
o 1001
9
01 1 1001
*
01
o 1010
:
01 1
1010
+
01
o 1011
;
01 1 1011
)
01 o 1100
(
01
1
1100
-
01 o 1101
= 01 1 11 01
01 o 1110
)
01 1
111 0
/
01 o 1111
?
01 1
1111
BINARY RELOCATABLE FORMAT. Binary relocatable format specifies absolute X and Y
coordinates
in the range -16384 to + 16383 using 6 bytes. The value specified in the relocatable
origin command is taken to be the 0,0 point. The actual screen address is computed by the
terminal by adding the relocatable origin to the X,Y pair.
BIT
7 6
5
4
3
2
1
BYTE 1
0
1 X14
X13
X12 X 11 X10
HI
X
BYTE 2
0
1
X9
xa
X7
X6
XS
MID
X
BYTE 3
0
1 X4
X3
X2 X1
XO
LOW X
BYTE
4 0 Y14 Y13
Y12
Y11
Y10
HI Y
BYTE
3
0
Y9
ya
Y7
Y6 YS
MID Y
BYTE 2
0
Y4
Y3
Y2 Y1
YO
LOW Y
The following example shows how relocatable data bytes are computed.
RELOC X = -600 =
11111
01101
01000
HI X MID X LOW X
RELOC Y 200 00000
00110 01000
HI Y
MID Y LOW Y
BYTE
1 01 11111
HI
X
BYTE
2 01 01101
MID
X
BYTE
3
01
01000
(
LOW
X
BYTE
4
01
00000
space
HI Y
BYTE 5 01 00110
&
MID Y
BYTE 6 =
01
01000
(
LOW Y
D-33