www.pudn.com > HEC-win32.zip > shift.c

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
+                                                                   + 
+  shift.c - this file implements bitwise shifting instructions     + 
+				SRA, SRL, SL                                        + 
+                                                                   + 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ 
 
/* SRA $r1, $r2, $r3*/ 
 
#define HANDLE_SRA();	DBG_RUN0("Optimized HANDLE_SRA\n"); \ 
						R[RAM[R[$IP]+1]] = ((S8)R[RAM[R[$IP]+2]]) >> ((S8)R[RAM[R[$IP]+3]]);\ 
						R[$IP]=R[$IP]+4; 
 
/* SRL $r1, $r2, $r3*/ 
 
#define HANDLE_SRL();	DBG_RUN0("Optimized HANDLE_SRL\n"); \ 
						R[RAM[R[$IP]+1]] = R[RAM[R[$IP]+2]] >> R[RAM[R[$IP]+3]];\ 
						R[$IP]=R[$IP]+4; 
 
/* SL $r1, $r2, $r3*/ 
 
#define HANDLE_SL();	DBG_RUN0("Optimized HANDLE_SL\n"); \ 
						R[RAM[R[$IP]+1]] = R[RAM[R[$IP]+2]] << R[RAM[R[$IP]+3]];\ 
						R[$IP]=R[$IP]+4;