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// Test result extraction of mac instructions.
// Test basic edge values
// SIGNED FRACTIONAL mode into SINGLE destination register
// test ops: "+="
# mach: bfin
.include "testutils.inc"
start
// load r0=0x80007fff
// load r1=0x80007fff
// load r2=0xf0000000
// load r3=0x0000007f
// load r4=0x00000080
loadsym p0, data0;
R0 = [ P0 ++ ];
R1 = [ P0 ++ ];
R2 = [ P0 ++ ];
R3 = [ P0 ++ ];
R4 = [ P0 ++ ];
// simple extraction with no saturation
// 0x7fff * 0x7fff = 0x007ffe0002 -> 0x7ffe
R7 = 0;
ASTAT = R7;
A1 = A0 = 0;
R5.H = (A1 += R0.L * R1.L), R5.L = (A0 += R0.L * R1.L);
DBGA ( R5.L , 0x7ffe );
DBGA ( R5.H , 0x7ffe );
_DBG ASTAT;
R7 = ASTAT;
DBGA (R7.H, 0x0);
DBGA (R7.L, 0x0);
// positive saturation at 32 bits
// 0x0 * 0x0 + 0x7ff0000000 -> 0x7fff
R7 = 0;
ASTAT = R7;
A1 = A0 = 0;
A1.w = R2;
A1.x = R3.L;
A0.x = R3.L;
A0.w = R2;
R5.H = (A1 += R0.L * R2.L), R5.L = (A0 += R0.L * R2.L);
_DBG A1;
_DBG A0;
DBGA ( R5.L , 0x7fff );
DBGA ( R5.H , 0x7fff );
_DBG ASTAT;
R7 = ASTAT;
_DBG R7;
DBGA (R7.H, 0x300);
DBGA (R7.L, 0x8);
// positive saturation at 32 bits
// 0x7fff * 0x7fff + 0x7ff0000000 -> 0x7fff
R7 = 0;
ASTAT = R7;
A1 = A0 = 0;
A1.w = R2;
A1.x = R3.L;
A0.w = R2;
A0.x = R3.L;
R5.H = (A1 += R0.L * R1.L), R5.L = (A0 += R0.L * R1.L);
DBGA ( R5.L , 0x7fff );
DBGA ( R5.H , 0x7fff );
_DBG ASTAT;
R7 = ASTAT;
DBGA (R7.H, 0x30f);
DBGA (R7.L, 0x8);
// negative saturation at 32 bits
// 0x0 * 0x0 + 0x80f0000000 -> 0x8000
R7 = 0;
ASTAT = R7;
A1 = A0 = 0;
A1.w = R2;
A1.x = R4.L;
A0.w = R2;
A0.x = R4.L;
R5.H = (A1 += R0.L * R2.L), R5.L = (A0 += R0.L * R2.L);
DBGA ( R5.L , 0x8000 );
DBGA ( R5.H , 0x8000 );
_DBG A1;
_DBG A0;
_DBG ASTAT;
R7=ASTAT;
_DBG R7;
DBGA (R7.H, 0x300);
DBGA (R7.L, 0x0008);
// negative saturation at 32 bits
// 0x7fff * 0x8000 + 0x80f0000000 -> 0x8000
R7 = 0;
ASTAT = R7;
A1 = A0 = 0;
A1.w = R2;
A1.x = R4.L;
A0.w = R2;
A0.x = R4.L;
R5.H = (A1 += R0.H * R1.L), R5.L = (A0 += R0.H * R1.L);
DBGA ( R5.L , 0x8000 );
DBGA ( R5.H , 0x8000 );
R7=ASTAT;
_DBG ASTAT;
DBGA (R7.H, 0x300);
DBGA (R7.L, 0x0008);
// negative saturation at 32 bits on MAC only
// 0x7fff * 0x8000 + 0x80f0000000 -> 0x8000
R7 = 0;
ASTAT = R7;
A1 = A0 = 0;
A0.w = R2;
A0.x = R4.L;
_DBG ASTAT;
R5.H = A1, R5.L = (A0 += R0.H * R1.L);
_DBG A0;
DBGA ( R5.L , 0x8000 );
DBGA ( R5.H , 0x0000 );
R7=ASTAT;
_DBG ASTAT;
DBGA (R7.H, 0x300);
DBGA (R7.L, 0x0009);
// 0x0100 * 0x0100 = 0x00020000 -> 0x0002
R7 = 0;
ASTAT = R7;
R0.L = 0x0100;
R1.L = 0x0100;
A1 = A0 = 0;
R5.H = (A1 = R0.L * R1.L), R5.L = (A0 = R0.L * R1.L) (T);
DBGA ( R5.L , 0x0002 );
DBGA ( R5.H , 0x0002 );
R7 = ASTAT;
DBGA (R7.H, 0x000);
DBGA (R7.L, 0x000);
pass
.data
data0:
.dw 0x7fff
.dw 0x8000
.dw 0x7fff
.dw 0x8000
.dw 0x0000
.dw 0xf000
.dw 0x007f
.dw 0x0000
.dw 0x0080
.dw 0x0000
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