Maxim Integrated MAX31782 - Manual (Page 204)

  MaximIntegrated 20-21
MAX31782 User’s Guide
Revision 0; 8/11
RETI ReturnfromInterrupt
Description: RETI pops a single word from the stack (@SP) into the Instruction Pointer (IP) and decrements the
stack pointer (SP) . Additionally, RETI returns the interrupt logic to a state in which it can acknowl-
edge additional interrupts .
StatusFlags: None
Operation: IP ← @SP--
INS ← 0
Encoding: 15 0
1000 1100 1000 1101
Example(s): See RETI
RETIC/RETINC,RETIZ/RETINZ,RETIS ConditionalReturnfromInterruptonStatusFlag
Description: Performs conditional return (RETI) based upon the state of a specific processor status flag . RETI C
returns if the Carry flag is set while RETI NC returns if the Carry flag is clear . RETI Z returns if the
Zero flag is set while RETI NZ returns if the Zero flag is clear . RETI S returns if the Sign flag is set .
See RETI for additional information on the return operation .
StatusFlags: None
RETIC
Operation:
C=1: IP ← @SP--
INS ← 0
C=0: IP ← IP + 1
Encoding: 15 0
1010 1100 1000 1101
Example(s): RETI C ; C=1, return from interrupt (RETI) is performed
RETINC
Operation:
C=0: IP ← @SP--
INS ← 0
C=1: IP ← IP +1
Encoding: 15 0
1110 1100 1000 1101
Example(s): RETI NC ; C=1, return from interrupt (RETI) does not occur