12 lines
994 B
Plaintext
12 lines
994 B
Plaintext
Field Name Bits Default Description
|
|
ZPASS_ADDR 31:2 0x0 Writing this location with a DWORD address causes the
|
|
value in ZB_ZPASS_DATA to be written to main
|
|
memory at the location pointed to by this address.
|
|
NOTE: R300 has 2 pixel pipes. Broadcasting this address
|
|
causes both pipes to write their ZPASS value to the same
|
|
address. There is no guarantee which pipe will write last.
|
|
So when writing to this register, the GA needs to be
|
|
programmed to send the write command to pipe 0. Then
|
|
a different address needs to be written to pipe 1. Then
|
|
both pipes should be enabled for further register writes.
|