R1832 patch: MCS51 codes

All tested.

Implementes:
- 0xF5  MOV data addr <- A
- 0xF6  MOV @R0 <- A
- 0xF7  MOV @R1 <- A
- 0xF8-0xFF MOV Rx <- A

Fixes:
in 0xB4-0xBF  CJNE
 - dataaddr are treated the same as #dataaddr (replace operRel() with opr2I08()/opr2Dir() + addrDir() )
 - in CJNE() , PC is not corrected updated

Change:
 - new operAcc(), to make codes cleaner
 - new opr2I

Patch updated:

Fix:
- 0xd8-0xdf
DJNZ use m_op0 as the mem address. So should retrieve Rx as m_op0.

Thanks.
Patch applied at Rev 1833.