
Chapter 3. Instructions
3-19
3.2.18 Interrupt instructions
Mnemonic
symbol
Function
No.
Ladder symbol
Unit
Contents of processing
CPU
Page
EI
DI
236
239
Enable an interrupt
Disable an interrupt
★
5-119
EI
DI
221
222
Enable all interrupts
Disable all interrupts
★
5-119
TDINT
INT
IRET
226
227
225
Start of TDI routine
Start of PDI routine
End of interrupt routine
★
5-120
5-121
3.2.19 Sign inversion instructrions
Mnemonic
symbol
Function
No.
Ladder symbol
Unit
Contents of processing
CPU
Page
NEG
NEGP
240
241
Invert the sign of [ D ]
★
5-122
DNEG
DNEGP
242
243
Invert the sign of [ D+1, D ]
★
5-122
DI n
EI n
DI
EI
TDINT n
INT n
IRET
NEG
D
NEGP
D
DNEG
D
DNEGP D