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