void GetPadBuf (
volatile unsigned char **buf1,
volatile unsigned char **buf2
)
|
Arguments
| buf1 |
Pointer to a storage location that will contain a pointer to the port1
controller. |
| buf2 |
Pointer to a storage location that will contain a pointer to the port2
controller. |
Return Value
None.
Explanation
The storage locations of the system controller buffers are obtained and
stored at the memory locations pointed to by buf1 and buf2.
Communication with the controllers occurs every vertical synchronization
interruption and information read from the controllers is stored in the
system controller buffers. GetPadBuf() can be used to obtain pointers
to these buffers. There is a separate buffer for each controller. The table
below shows the arrangement of data within each buffer.
|
Bytes
|
Content
|
|
0
|
0xff: No controller
0x00: Controller present |
|
1
|
Upper 4 bits: Terminal type
Lower 4 bits: Received data size (in 1/2 bytes) |
|
2~
|
Received data (maximum 32 bytes) |
The received data format varies according to the type of controller
indicated by ‘terminal type’. The terminal types supported by the library
are shown in the following table:
|
Terminal Type
|
Device Name
|
|
0x1
|
Mouse
|
|
0x2
|
NeGCon
|
|
0x4
|
Standard controller
|
|
0x5
|
Joystick
|
Please refer to the "User’s Guide" for a description of the contents
of received data corresponding to each terminal type, or see the Net
Yaroze Members' Web site.
|