git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3056
4a8a32a2-be11-0410-ad9d-
d568d2c75423
* src/mcs51/main.c: fixed bug #737001 for the mcs51. SDCC clears
xdata and data memory on startup. Set the environment variable
SDCC_NOGENRAMCLEAR to disable this.
+ * src/mcs51/peephole.def,
* src/ds390/peephole.def: using the atomic test and clear instruction jbc
(allows non-interrupt and interrupt code to safely compete for a resource
without the non-interrupt code having to disable interrupts)