SIM and RIM for Interrupts
SIM and RIM for interrupts:
- The 8085 provide additional masking facility for RST 7.5, RST 6.5 and RST 5.5 using SIM instruction.
- The status of these interrupts can be read by executing RIM instruction.
- The masking or unmasking of RST 7.5, RST 6.5 and RST 5.5 interrupts can be performed by moving an 8-bit data to accumulator and then executing SIM instruction.
- The format of the 8-bit data is shown below.
