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Add some comments to the CPP conditionals controlling the trap macro 

definitions, to ease navigation somewhat.
This commit is contained in:
kleink 2002-05-04 17:19:25 +00:00
parent df9895c1cb
commit c1477b6161
1 changed files with 14 additions and 14 deletions
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28
sys/arch/sparc64/sparc64/locore.s
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@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.151 2002/04/16 23:09:37 eeh Exp $ */
/* $NetBSD: locore.s,v 1.152 2002/05/04 17:19:25 kleink Exp $ */
/*
* Copyright (c) 1996-2001 Eduardo Horvath
@ -517,7 +517,7 @@ _C_LABEL(pgofset):
*
* We have a problem with v9 traps; we have no registers to put the
* trap type into. But we do have a %tt register which already has
* that information. Tryap types in these macros are all dummys.
* that information. Trap types in these macros are all dummys.
*/
/* regular vectored traps */
#ifdef DEBUG
@ -527,21 +527,21 @@ _C_LABEL(pgofset):
#if 0
#define TRACEWIN sethi %hi(9f), %l6; ba,pt %icc,traceitwin;\
or %l6, %lo(9f), %l6; 9:
#endif
#endif /* 0 */
#ifdef TRAPS_USE_IG
#define TRACEWIN wrpr %g0, PSTATE_KERN|PSTATE_AG, %pstate;\
sethi %hi(9f), %g1; ba,pt %icc,traceit; or %g1, %lo(9f), %g1; 9:
#else
#define TRACEWIN wrpr %g0, PSTATE_KERN|PSTATE_IG, %pstate;\
sethi %hi(9f), %g1; ba,pt %icc,traceit; or %g1, %lo(9f), %g1; 9:
#endif
#endif /* TRAPS_USE_IG */
#define TRACERELOAD32 ba reload32; nop;
#define TRACERELOAD64 ba reload64; nop;
#define TRACEFLT TRACEME
#define VTRAP(type, label) \
sethi %hi(label), %g1; ba,pt %icc,traceit;\
or %g1, %lo(label), %g1; NOTREACHED; TA8
#else
#else /* TRAPTRACE */
#define TRACEME
#define TRACEWIN TRACEME
#define TRACERELOAD32
@ -551,12 +551,12 @@ _C_LABEL(pgofset):
or %g1, %lo(1f), %g1; 1:
#else
#define TRACEFLT TRACEME
#endif
#endif /* FLTRACE */
#define VTRAP(type, label) \
sethi %hi(DATA_START),%g1; rdpr %tt,%g2; or %g1,0x28,%g1; b label;\
stx %g2,[%g1]; NOTREACHED; TA8
#endif
#else
#endif /* TRAPTRACE */
#else /* DEBUG */
#ifdef TRAPTRACE
#define TRACEME sethi %hi(1f), %g1; ba,pt %icc,traceit;\
or %g1, %lo(1f), %g1; 1:
@ -564,21 +564,21 @@ _C_LABEL(pgofset):
/* Can't use this 'cause we have no clean registers during a spill */
#define TRACEWIN sethi %hi(9f), %l6; ba,pt %icc,traceitwin;\
or %l6, %lo(9f), %l6; 9:
#endif
#endif /* 0 */
#ifdef TRAPS_USE_IG
#define TRACEWIN wrpr %g0, PSTATE_KERN|PSTATE_AG, %pstate;\
sethi %hi(9f), %g1; ba,pt %icc,traceit; or %g1, %lo(9f), %g1; 9:
#else
#define TRACEWIN wrpr %g0, PSTATE_KERN|PSTATE_IG, %pstate;\
sethi %hi(9f), %g1; ba,pt %icc,traceit; or %g1, %lo(9f), %g1; 9:
#endif
#endif /* TRAPS_USE_IG */
#define TRACERELOAD32 ba reload32; nop;
#define TRACERELOAD64 ba reload64; nop;
#define TRACEFLT TRACEME
#define VTRAP(type, label) \
sethi %hi(label), %g1; ba,pt %icc,traceit;\
or %g1, %lo(label), %g1; NOTREACHED; TA8
#else
#else /* TRAPTRACE */
#define TRACEME
#define TRACEWIN TRACEME
#define TRACERELOAD32
@ -588,11 +588,11 @@ _C_LABEL(pgofset):
or %g1, %lo(1f), %g1; 1:
#else
#define TRACEFLT TRACEME
#endif
#endif /* FLTRACE */
#define VTRAP(type, label) \
ba,a,pt %icc,label; nop; NOTREACHED; TA8
#endif
#endif
#endif /* TRAPTRACE */
#endif /* DEBUG */
/* hardware interrupts (can be linked or made `fast') */
#define HARDINT4U(lev) \
VTRAP(lev, _C_LABEL(sparc_interrupt))