View source for Artist graphics registers (used in HP9000/712)

Artist is the onboard graphics chip used in the HP9000/712. According to HP, it's mostly compatible to CRX. On the 712, it spans the I/O memory range 0xf4000000-0xf5ffffff. Unfortunately no documentation seems to be available, but this is what i figured out by looking at the memory write from the Bootrom/STI code:

{| class="wikitable"
|Offset
|Size
|Description
|-
|0x1004a0
|Word
|VRAM offset (starting address) for write FIFO registers
|-
|0x100800
|Word
|Block mover source X=Bit31-16 Y=Bit15-0
|-
|0x100a04
|Word
|Block mover size Width=Bit31-16 Height=Bit15-0
|-
|0x100600
|Word
|Bit mode VRAM write FIFO, with every write the number of X pixels is added to the write index.
|-
|0x100620
|Word
|Byte mode VRAM write FIFO, with every write the number of X pixels is added to the write index
|-
|0x118010
|Word
|foreground color used in block move operations
|-
|0x118014
|Word
|background color used in block move operations
|-
|0x30023c
|Word
|Used in selftest code, looks like signature testing result register?
|-
|0x380008
|Word
|Unknown status register, returning 0x20000000 to make STI happy
|-
|0x380000
|Word
|Unknown status register, returning 0 to make STI happy
|-
|0x380008
|Word
|Unknown status register, returning 0x20000000 to make STI happy
|-
|0x0118406c-0x011847ff
|Word
|Color map used by STI code - Strange offset address, maybe software configurable? One entry spans 32 bit, where Bit 23-16=R, Bit16-8=G, Bit7-0=B
|}