PRESCRIBE Command Reference
SROP —
Format
Parameter
value:
Function
File
332
Set Raster OPeration
SROP value;
logical operation value: 0 to 255
The SROP command applies logical functions (AND, OR, XOR, NOT) to source,
texture, and destination. Possible logical operations provided by this command is 255.
These logical operations directory map to their raster operations (ROP3).
Logical operation value is eset to the default of 252 by the RES command. An error
results and this command has no effect if the ROP3 value is outside the range 0 to 255.
!R!
DAM;
RES;
MCRO DBOX;
NEWP;
PMRP 0,0;
PDRP 0.5,0;
PDRP 0,0.5;
PDRP -0.5,0;
CLSP;
SROP 252;
GPAT 0;
FILL;
NEWP;
PMRP 0.2,0.2;
PDRP 0.5,0;
PDRP 0,0.5;
PDRP -0.5,0;
CLSP;
SROP %1;
PAT 25;
FILL;
MRP 0.8, -0.2;
ENDM;
MCRO TROP;
MZP0,2;
CALL DBOX,0;
CALL DBOX,1;