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Allow selection of single-number vs. dual-number mode in Makefile.

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Mike Pall 2011-10-24 16:35:17 +02:00
parent 96d8611d1b
commit fa9ade356b
2 changed files with 10 additions and 0 deletions
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6
src/Makefile
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@ -118,6 +118,12 @@ XCFLAGS=
# interpreter. Don't bother if your OS wouldn't run on them, anyway.
#XCFLAGS+= -DLUAJIT_CPU_NOCMOV
#
# Some architectures (e.g. PPC) can use either single-number (1) or
# dual-number (2) mode. Uncomment one of these lines to override the
# default mode. Please see LJ_ARCH_NUMMODE in lj_arch.h for details.
#XCFLAGS+= -DLUAJIT_NUMMODE=1
#XCFLAGS+= -DLUAJIT_NUMMODE=2
#
##############################################################################
##############################################################################

4
src/lj_arch.h
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@ -235,6 +235,10 @@
#endif
/* Enable or disable the dual-number mode for the VM. */
#if (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE && LUAJIT_NUMMODE == 2) || \
(LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL && LUAJIT_NUMMODE == 1)
#error "No support for this number mode on this architecture"
#endif
#if LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL || \
(LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL_SINGLE && LUAJIT_NUMMODE != 1) || \
(LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE_DUAL && LUAJIT_NUMMODE == 2)