* src/mcs51/gen.c (freeAsmop): fixed off by one in stack offset (AOP_STK)

* src/mcs51/gen.c (freeAsmop): fixed off by one in stack offset (AOP_STK)
* src/mcs51/gen.c (genNearPointerSet): added missing opcode for fetching of the pointer
* src/mcs51/gen.c (genNearPointerGet): added reuse of PREG, copied from genNearPointerSet()
* src/mcs51/gen.c (genNearPointerGet): don't pop r0/r1, if RESULTONSTACK
* src/mcs51/gen.c: changed order of freeAsmop(left/right/result)-calls.	If they pop r0/r1 they must be called in the opposite order than aopOp().

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@2863 4a8a32a2-be11-0410-ad9d-d568d2c75423