| // Test signbits40 |
| # mach: bfin |
| |
| .include "testutils.inc" |
| start |
| |
| |
| // positive value in accum, smaller than 1.0 |
| A1 = A0 = 0; |
| R0.L = 0xffff; |
| R0.H = 0x0000; |
| A0.w = R0; |
| R0.L = 0x0000; |
| A0.x = R0; |
| |
| R5.L = SIGNBITS A0; |
| _DBG R5; |
| A0 = ASHIFT A0 BY R5.L; |
| _DBG A0; |
| |
| R4 = A0.w; |
| R5 = A0.x; |
| DBGA ( R4.H , 0x7fff ); DBGA ( R4.L , 0x8000 ); |
| DBGA ( R5.H , 0x0000 ); DBGA ( R5.L , 0x0000 ); |
| |
| // neg value in accum, larger than -1.0 |
| A1 = A0 = 0; |
| R0.L = 0x0000; |
| R0.H = 0xffff; |
| A0.w = R0; |
| R0.L = 0x00ff; |
| A0.x = R0; |
| |
| R5.L = SIGNBITS A0; |
| _DBG R5; |
| A0 = ASHIFT A0 BY R5.L; |
| _DBG A0; |
| |
| R4 = A0.w; |
| R5 = A0.x; |
| DBGA ( R4.H , 0x8000 ); DBGA ( R4.L , 0x0000 ); |
| DBGA ( R5.H , 0xffff ); DBGA ( R5.L , 0xffff ); |
| |
| // positive value in accum, larger than 1.0 |
| A1 = A0 = 0; |
| R0.L = 0xffff; |
| R0.H = 0xffff; |
| A0.w = R0; |
| R0.L = 0x000f; |
| A0.x = R0; |
| |
| R5.L = SIGNBITS A0; |
| _DBG R5; |
| A0 = ASHIFT A0 BY R5.L; |
| _DBG A0; |
| |
| R4 = A0.w; |
| R5 = A0.x; |
| DBGA ( R4.H , 0x7fff ); DBGA ( R4.L , 0xffff ); |
| DBGA ( R5.H , 0x0000 ); DBGA ( R5.L , 0x0000 ); |
| |
| // negative value in accum, smaller than -1.0 |
| A1 = A0 = 0; |
| R0.L = 0x0000; |
| R0.H = 0x0000; |
| A0.w = R0; |
| R0.L = 0x0080; |
| A0.x = R0; |
| |
| R5.L = SIGNBITS A0; |
| _DBG R5; |
| A0 = ASHIFT A0 BY R5.L; |
| _DBG A0; |
| |
| R4 = A0.w; |
| R5 = A0.x; |
| DBGA ( R4.H , 0x8000 ); DBGA ( R4.L , 0x0000 ); |
| DBGA ( R5.H , 0xffff ); DBGA ( R5.L , 0xffff ); |
| |
| // no normalization |
| A1 = A0 = 0; |
| R0.L = 0xfffa; |
| R0.H = 0x7fff; |
| A0.w = R0; |
| R0.L = 0x0000; |
| A0.x = R0; |
| |
| R5.L = SIGNBITS A0; |
| _DBG R5; |
| A0 = ASHIFT A0 BY R5.L; |
| _DBG A0; |
| |
| R4 = A0.w; |
| R5 = A0.x; |
| DBGA ( R4.H , 0x7fff ); DBGA ( R4.L , 0xfffa ); |
| DBGA ( R5.H , 0x0000 ); DBGA ( R5.L , 0x0000 ); |
| |
| // no normalization (-1.0) |
| A1 = A0 = 0; |
| R0.L = 0x0000; |
| R0.H = 0x8000; |
| A0.w = R0; |
| R0.L = 0x00ff; |
| A0.x = R0; |
| |
| R5.L = SIGNBITS A0; |
| _DBG R5; |
| A0 = ASHIFT A0 BY R5.L; |
| _DBG A0; |
| |
| R4 = A0.w; |
| R5 = A0.x; |
| DBGA ( R4.H , 0x8000 ); DBGA ( R4.L , 0x0000 ); |
| DBGA ( R5.H , 0xffff ); DBGA ( R5.L , 0xffff ); |
| |
| // norm by 1 |
| A1 = A0 = 0; |
| R0.L = 0x0000; |
| R0.H = 0x8000; |
| A0.w = R0; |
| R0.L = 0x0000; |
| A0.x = R0; |
| |
| R5.L = SIGNBITS A0; |
| _DBG R5; |
| A0 = ASHIFT A0 BY R5.L; |
| _DBG A0; |
| |
| R4 = A0.w; |
| R5 = A0.x; |
| DBGA ( R4.H , 0x4000 ); DBGA ( R4.L , 0x0000 ); |
| DBGA ( R5.H , 0x0000 ); DBGA ( R5.L , 0x0000 ); |
| |
| // norm by 1 |
| A1 = A0 = 0; |
| R0.L = 0x0000; |
| R0.H = 0x0000; |
| A0.w = R0; |
| R0.L = 0x00ff; |
| A0.x = R0; |
| |
| R5.L = SIGNBITS A0; |
| _DBG R5; |
| A0 = ASHIFT A0 BY R5.L; |
| _DBG A0; |
| |
| R4 = A0.w; |
| R5 = A0.x; |
| DBGA ( R4.H , 0x8000 ); DBGA ( R4.L , 0x0000 ); |
| DBGA ( R5.H , 0xffff ); DBGA ( R5.L , 0xffff ); |
| |
| pass |
