116
4 . 4 . 2 0 GOSUB
Command Format
SUBROUTINE ADDRESS H
SUBROUTINE ADDRESS L
15
DRAW MODE
CODE
0
1. Code
B'11001
2. Rendering Attributes
Reference Data
Drawing Destination
Multi-Valued
Source
Binary
Source
Binary
Work
Specified
Color
Rendering
Work
×
×
×
×
×
×
Draw Mode
Reserved
Fixed at
0
Fixed at
0
Fixed at
0
Fixed at
0
Fixed at
0
Fixed at
0
Fixed at
0
Fixed
at 0
Fixed
at 0
Fixed
at 0
Fixed
at 0
×
: Cannot be used
3. Command Parameters
SUBROUTINE ADDRESS H: Subroutine upper address
SUBROUTINE ADDRESS L: Subroutine lower address
Description
Changes the display list fetch destination to the specified subroutine address. The fetch address is
restored by an RET instruction. As only one level of nesting is permitted, it will not be possible
to return if a subroutine call is issued within the subroutine.
Содержание HD64411 Q2
Страница 17: ...10 ...
Страница 31: ...24 ...
Страница 108: ...101 Example 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 110: ...103 Example Old XC YC Old XC XC old YC YC 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 112: ...105 Example 0 0 Work coordinates Rendering coordinates XO1 YO1 XO1 DX2 YO1 DY2 XO1 DX1 YO1 DY1 LINE ...
Страница 116: ...109 Example 0 0 Work coordinates Rendering coordinates XMIN YMIN XMAX YMAX ...
Страница 118: ...111 Example 0 0 Work coordinates Rendering coordinates XMAX YMAX ...
Страница 120: ...113 Example 0 0 Work coordinates XMIN YMIN XMAX YMAX ...
Страница 129: ...122 ...
Страница 167: ...160 ...
Страница 179: ...172 ...
Страница 213: ...206 Figure 7 20 TV Sync Mode Display Timing When DOT 0 or DOT 1 and EXHSYNC cycle is even multiple of CLK1 cycle ...