u32 *reciprocal_table_ptr;
// enhancement stuff
- u16 *enhancement_buf_ptr;
- u16 *enhancement_current_buf_ptr;
- u32 enhancement_x_threshold;
+ u16 *enhancement_buf_ptr; // main alloc
+ u16 *enhancement_current_buf_ptr; // offset into above, 4 bufs
+ u32 saved_hres;
s16 saved_viewport_start_x;
s16 saved_viewport_start_y;
s16 saved_viewport_end_x;
s16 saved_viewport_end_y;
- u8 enhancement_buf_by_x16[64];
+ u8 enhancement_buf_by_x16[64]; // 0-3 specifying which buf
+ u16 enhancement_buf_start[4]; // x pos where buf[n] begins
+
+ u16 enhancement_scanout_x[4];
+ u16 enhancement_scanout_select;
// Align up to 64 byte boundary to keep the upcoming buffers cache line
// aligned, also make reachable with single immediate addition
- u8 reserved_a[160];
+ u8 reserved_a[142];
// 8KB
block_struct blocks[MAX_BLOCKS_PER_ROW];