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fixed comments on vanilla 68000 SW interrupt stack (or the lack thereof)

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This commit is contained in:
Joel Sherrill
1997-01-15 20:21:48 +00:00
parent d135fc52cd
commit fc5e2d7328
3 changed files with 4 additions and 7 deletions
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3
c/src/exec/score/cpu/m68k/cpu.c
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@@ -131,7 +131,8 @@ void _CPU_Install_interrupt_stack( void )
asm volatile ( "movec %0,%%isp" : "=r" (isp) : "0" (isp) ); asm volatile ( "movec %0,%%isp" : "=r" (isp) : "0" (isp) );
#else #else
#warning "FIX ME... HOW DO I INSTALL THE INTERRUPT STACK!!!" #warning "FIX ME... NO DEDICATE INTERRUPT STACK!!!"
#warning "FIX ME... INTERRUPTS RUN ON A TASK STACK!!!"
#endif #endif
} }

5
c/src/exec/score/cpu/m68k/cpu_asm.s
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@@ -160,11 +160,6 @@ SYM (_ISR_Handler):
jbsr a0@ | invoke the user ISR jbsr a0@ | invoke the user ISR
addql #4,a7 | remove vector number addql #4,a7 | remove vector number
/*
* The following entry should be unnecessary once the support is
* in place to know what vector we got on a 68000 core.
*/
subql #1,SYM (_ISR_Nest_level) | one less nest level subql #1,SYM (_ISR_Nest_level) | one less nest level
subql #1,SYM (_Thread_Dispatch_disable_level) subql #1,SYM (_Thread_Dispatch_disable_level)
| unnest multitasking | unnest multitasking

3
cpukit/score/cpu/m68k/cpu.c
View File

@@ -131,7 +131,8 @@ void _CPU_Install_interrupt_stack( void )
asm volatile ( "movec %0,%%isp" : "=r" (isp) : "0" (isp) ); asm volatile ( "movec %0,%%isp" : "=r" (isp) : "0" (isp) );
#else #else
#warning "FIX ME... HOW DO I INSTALL THE INTERRUPT STACK!!!" #warning "FIX ME... NO DEDICATE INTERRUPT STACK!!!"
#warning "FIX ME... INTERRUPTS RUN ON A TASK STACK!!!"
#endif #endif
} }