Microchip Technology SW006022-2N Data Sheet

 2012 Microchip Technology Inc.

DS52071B-page 41

2.5.10.3

MIGRATION TO THE CCI

For 8-bit compilers, change any occurrence of the interrupt qualifier, as in the 
following examples:

void interrupt myIsr(void)

void interrupt low_priority myLoIsr(void)

to the following, respectively

void __interrupt(high_priority) myIsr(void)

void __interrupt(low_priority) myLoIsr(void)

For 16-bit compilers, change any occurrence of the interrupt attribute, as in the fol-
lowing example:

void __attribute__((interrupt,auto_psv,(irq(52)))) myIsr(void);

to

void __interrupt(auto_psv,(irq(52)))) myIsr(void);

For 32-bit compilers, the __interrupt() keyword takes two parameters, the vector 
number and the (optional) IPL value. Change code which uses the interrupt attri-
bute, similar to these examples:

void __attribute__((vector(0), interrupt(IPL7AUTO), nomips16)) 

myisr0_7A(void) {}

 

void __attribute__((vector(1), interrupt(IPL6SRS), nomips16)) 

myisr1_6SRS(void) {}

 

/* Determine IPL and context-saving mode at runtime */

void __attribute__((vector(2), interrupt(), nomips16)) 

myisr2_RUNTIME(void) {}

to

void __interrupt(0,IPL7AUTO) myisr0_7A(void) {}

 

void __interrupt(1,IPL6SRS) myisr1_6SRS(void) {}

 

/* Determine IPL and context-saving mode at runtime */

void __interrupt(2) myisr2_RUNTIME(void) {}

2.5.10.4

CAVEATS

None.