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// Test extraction from accumulators:
// ROUND/TRUNCATE in SIGNED FRACTIONAL mode
// test ops: "+="
# mach: bfin
.include "testutils.inc"
start
// load r0=0x7ffef000
// load r1=0x7ffff000
// load r2=0x00008000
// load r3=0x00018000
// load r4=0x0000007f
loadsym P0, data0;
R0 = [ P0 ++ ];
R1 = [ P0 ++ ];
R2 = [ P0 ++ ];
R3 = [ P0 ++ ];
R4 = [ P0 ++ ];
// round
// 0x007ffef00 -> 0x7fff
A1 = A0 = 0;
A1.w = R0;
A0.w = R0;
R5.H = A1, R5.L = A0;
DBGA ( R5.L , 0x7fff );
DBGA ( R5.H , 0x7fff );
// round with ovflw
// 0x007ffff00 -> 0x7fff
A1 = A0 = 0;
A1.w = R1;
A0.w = R1;
R5.H = A1, R5.L = A0;
DBGA ( R5.L , 0x7fff );
DBGA ( R5.H , 0x7fff );
// trunc
// 0x007ffef00 -> 0x7ffe
A1 = A0 = 0;
A1.w = R0;
A0.w = R0;
R5.H = A1, R5.L = A0 (T);
DBGA ( R5.L , 0x7ffe );
DBGA ( R5.H , 0x7ffe );
// round with ovflw
// 0x7f7ffff00 -> 0x7fff
A1 = A0 = 0;
A1.w = R1;
A1.x = R4.L;
A0.w = R1;
A0.x = R4.L;
R5.H = A1, R5.L = A0;
DBGA ( R5.L , 0x7fff );
DBGA ( R5.H , 0x7fff );
// round, nearest even is zero
// 0x0000008000 -> 0x0000
A1 = A0 = 0;
A1.w = R2;
A0.w = R2;
R5.H = A1, R5.L = A0;
DBGA ( R5.L , 0x0 );
DBGA ( R5.H , 0x0 );
// round, nearest even is 2
// 0x00000018000 -> 0x0002
A1 = A0 = 0;
A1.w = R3;
A0.w = R3;
R5.H = A1, R5.L = A0;
DBGA ( R5.L , 0x2 );
DBGA ( R5.H , 0x2 );
pass
.data
data0:
.dw 0xf000
.dw 0x7ffe
.dw 0xf000
.dw 0x7ffe
.dw 0x8000
.dw 0x0000
.dw 0x8000
.dw 0x0001
.dw 0x007f
.dw 0x0000
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