From 0465adf206255fc114130cc7fcca1e295bcffca2 Mon Sep 17 00:00:00 2001 From: Tony Wasserka Date: Thu, 14 Aug 2014 23:23:55 +0200 Subject: Pica/CommandProcessor: Implement parameter masking. --- src/video_core/command_processor.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'src/video_core/command_processor.h') diff --git a/src/video_core/command_processor.h b/src/video_core/command_processor.h index 6b6241a2..955f9dae 100644 --- a/src/video_core/command_processor.h +++ b/src/video_core/command_processor.h @@ -17,11 +17,22 @@ union CommandHeader { u32 hex; BitField< 0, 16, u32> cmd_id; + + // parameter_mask: + // Mask applied to the input value to make it possible to update + // parts of a register without overwriting its other fields. + // first bit: 0x000000FF + // second bit: 0x0000FF00 + // third bit: 0x00FF0000 + // fourth bit: 0xFF000000 BitField<16, 4, u32> parameter_mask; + BitField<20, 11, u32> extra_data_length; + BitField<31, 1, u32> group_commands; }; -static_assert(std::is_standard_layout::value == true, "CommandHeader does not use standard layout"); +static_assert(std::is_standard_layout::value == true, + "CommandHeader does not use standard layout"); static_assert(sizeof(CommandHeader) == sizeof(u32), "CommandHeader has incorrect size!"); void ProcessCommandList(const u32* list, u32 size); -- cgit v1.2.3