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| author | Michael Meissner <gnu@the-meissners.org> | 1996-10-17 16:47:51 +0000 |
|---|---|---|
| committer | Michael Meissner <gnu@the-meissners.org> | 1996-10-17 16:47:51 +0000 |
| commit | 55116079e2a539d3fe36b7ab8f5ab4932acb74c0 (patch) | |
| tree | b13305fe7dd6d7535d94394615e5ea23b4595021 /sim/d10v | |
| parent | d27d34c382dca49e855531693060967a26cd9bb7 (diff) | |
| download | gdb-55116079e2a539d3fe36b7ab8f5ab4932acb74c0.zip gdb-55116079e2a539d3fe36b7ab8f5ab4932acb74c0.tar.gz gdb-55116079e2a539d3fe36b7ab8f5ab4932acb74c0.tar.bz2 | |
Make simulated loads/stores faster on x86, AIX, and big endian hosts
Diffstat (limited to 'sim/d10v')
| -rw-r--r-- | sim/d10v/ChangeLog | 12 | ||||
| -rw-r--r-- | sim/d10v/configure.in | 12 |
2 files changed, 24 insertions, 0 deletions
diff --git a/sim/d10v/ChangeLog b/sim/d10v/ChangeLog index fe621e3..95b2690 100644 --- a/sim/d10v/ChangeLog +++ b/sim/d10v/ChangeLog @@ -1,3 +1,15 @@ +Thu Oct 17 12:24:16 1996 Michael Meissner <meissner@tiktok.cygnus.com> + + * endian.c: Optimize simulated loads/stores on x86, AIX, and big + endian hosts. + + * configure.in (--enable-sim-bswap): New switch to enable using + the BSWAP instruction on x86's. + * configure: Regenerate. + + * Makefile.in ({SWAP,CONFIG}_CFLAGS): Add --enable-sim-bswap + support. + Wed Oct 16 13:50:06 1996 Michael Meissner <meissner@tiktok.cygnus.com> * endian.c: New file. Move endian functions here from interp.c. diff --git a/sim/d10v/configure.in b/sim/d10v/configure.in index cc9c4ad..d260088 100644 --- a/sim/d10v/configure.in +++ b/sim/d10v/configure.in @@ -42,6 +42,17 @@ if test x"$silent" != x"yes" && test x"$sim_debug" != x""; then echo "Setting sim debug = $sim_debug" 6>&1 fi],[sim_cflags=""])dnl +AC_ARG_ENABLE(sim-bswap, +[ --enable-sim-bswap Use the BSWAP instruction on Intel 486s and Pentiums.], +[case "${enableval}" in + yes) sim_bswap="-DUSE_BSWAP";; + no) sim_bswap="";; + *) AC_MSG_ERROR("--enable-sim-bswap does not take a value"); sim_bswap="";; +esac +if test x"$silent" != x"yes" && test x"$sim_bswap" != x""; then + echo "Setting bswap flags = $sim_bswap" 6>&1 +fi],[sim_bswap=""])dnl + AC_SUBST(CC_FOR_BUILD) AC_SUBST(CFLAGS) AC_SUBST(HDEFINES) @@ -50,6 +61,7 @@ AC_SUBST(AR) AC_PROG_RANLIB AC_SUBST(sim_cflags) AC_SUBST(sim_debug) +AC_SUBST(sim_bswap) # Put a plausible default for CC_FOR_BUILD in Makefile. AC_C_CROSS |