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PATCH: S/390: clarify register size selection
- From: Jim Blandy <jimb at zwingli dot cygnus dot com>
- To: gdb-patches at sources dot redhat dot com
- Date: Wed, 19 Dec 2001 17:40:21 -0500 (EST)
- Subject: PATCH: S/390: clarify register size selection
2001-12-19 Jim Blandy <jimb@redhat.com>
* s390-tdep.c (s390_register_raw_size): Replace unnecessarily
obscure range comparison with legible equivalent.
Index: gdb/s390-tdep.c
===================================================================
RCS file: /cvs/cvsfiles/devo/gdb/s390-tdep.c,v
retrieving revision 2.29
diff -c -r2.29 s390-tdep.c
*** gdb/s390-tdep.c 2001/12/07 22:50:10 2.29
--- gdb/s390-tdep.c 2001/12/19 22:16:51
***************
*** 42,55 ****
/* Number of bytes of storage in the actual machine representation
! for register N.
! Note that the unsigned cast here forces the result of the
! subtraction to very high positive values if N < S390_FP0_REGNUM */
int
s390_register_raw_size (int reg_nr)
{
! return ((unsigned) reg_nr - S390_FP0_REGNUM) <
! S390_NUM_FPRS ? S390_FPR_SIZE : 4;
}
int
--- 42,56 ----
/* Number of bytes of storage in the actual machine representation
! for register N. */
int
s390_register_raw_size (int reg_nr)
{
! if (S390_FP0_REGNUM <= reg_nr
! && reg_nr < S390_FP0_REGNUM + S390_NUM_FPRS)
! return S390_FPR_SIZE;
! else
! return 4;
}
int