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247 

  

Symbol 

 

E, F, B or R 

 None 

Specify the switch to be passed to #pragma INTHANDLER or #pragma INTERRUPT. If "E" is specified, a "/E" 
switch is selected, in which case multiple interrupts are enabled. If "F" is specified, a "/F" switch is selected, in 
which case a "FREIT" instruction is output at return from the interrupt handler. If "B" is specified, a "/B" switch 
is selected, in which case register bank 1 is selected. If "R" is specified, a "/R" switch is selected, in which case 
no codes are output that change the floating-number rounding mode of the FLG register to the "nearest value."   

Multiple switches can be specified at the same time. However, if a kernel managed interrupt handler is con-
cerned, only the "E" or "R" switch can be specified. For non-kernel managed interrupt handlers, the "E", "F" and 
"B" switches can be specified, providing that "E" and "B" are not specified at the same time. 

 

[( Fixed interrupt vector definition )] 
This definition needs to be set when interrupt handlers based on fixed vector table are used. 

 

 
 // Fixed Interrupt Vector Definition 
 interrupt_fvector[ 

  ]{ 

 entry_address 

= 

;  

  

pragma_switch 

= 

; 

 }; 
  

 

: 

  

 

: 

 

The interrupt vector number can be set in the range from 0 to 11. The relationship between the vector numbers and the in-
terrupts and vector addresses is shown below. All these interrupts are handled as non-kernel managed interrupt handlers.