40.4.6.4.7 ROP_WD6
| Name: | ROP_WD6 |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| ROPM[1:0] | |||||||||
| Access | |||||||||
| Reset | |||||||||
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| ROPH[7:0] | |||||||||
| Access | |||||||||
| Reset | |||||||||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| ROPHL[7:0] | |||||||||
| Access | |||||||||
| Reset | |||||||||
Bits 17:16 – ROPM[1:0] Raster Operation Mode
| Value | Name | Description |
|---|---|---|
| 0 | ROP2 | Binary
raster operation (D, S) Two surfaces are used (required), 16 operations are defined, D and S required. Mask set to 0 internally Pattern set to 0 internally Source read from memory ROPL field value is used to generate the logical expression. ROPL can be any value between 0 and 15 (0x00 to 0x0F). ROPH field is ignored. ROP2_BLACK D = 0 (always 0, black in RGB mode) ROP2_NOTMERGESOURCE D = ~(D|S) Inverse of R2_MERGESOURCE ROP2_MASKNOTSOURCE D = D &~S Conjunction of destination and inverse of source ROP2_NOTCOPYSOURCE D = ~S Inverse of source color ROP2_MASKSOURCENOT D = S & ~D Conjunction of source and inverse of destination ROP2_NOT D = ~D Inverse of destination ROP2_XORSOURCE D = D ^ S Exclusive OR of destination and source ROP2_NOTMASKSOURCE D = ~(D&S) Inverse of ROP2_MASKSOURCE ROP2_MASKSOURCE D = D & P Conjunction of destination and source ROP2_NOTXORSOURCE D = ~(D ^ S) Inverse of ROP2_XORSOURCE ROP2_NOP D = D No change (copy) ROP2_MERGENOTSOURCE D = D | ~S Disjunction of destination and inverse of source ROP2_COPYSOURCE D = S ROP2_MERGESOURCENOT D = S | ~D Disjunction of source and inverse of destination ROP2_MERGESOURCE D = S | D Conjunction of source and destination ROP2_WHITE D = 1 |
| 1 | ROP3 | Ternary
raster operation (D, P, S) Three surfaces used, 256 operations Mask value set to 0 Source read from memory Pattern read from memory ROPL used to generate the logical expression 256 raster operations from 0x00 to 0xFF |
| 2 | ROP4 | 4-operand raster operation (D, P, S, M) Four surfaces used, 256 operations Mask value is read from memory (pointed by PMASK), mask is bit level. Source read from memory Pattern read from memory ROPL used to generate the logical expression when mask bit is cleared ROPH used to generate the logical expression when mask bit is set |