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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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// 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
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