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