derek.holloway
7502bf64a4
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58 lines
1.1 KiB
ArmAsm
58 lines
1.1 KiB
ArmAsm
// Test result extraction of mac instructions.
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// Test basic edge values
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// SIGNED INTEGER 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=0x80000001
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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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// integer extraction with no saturation
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// 0x1 * 0x1 = 0x0000000001 -> 0x1
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A1 = A0 = 0;
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R5.H = (A1 += R0.L * R0.L), R5.L = (A0 += R0.L * R0.L) (IS);
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DBGA ( R5.L , 0x1 );
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DBGA ( R5.H , 0x1 );
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// integer extraction with positive saturation
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// 0x7fff * 0x7f -> 0x7fff
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A1 = A0 = 0;
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R5.H = (A1 += R1.L * R3.L), R5.L = (A0 += R1.L * R3.L) (IS);
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DBGA ( R5.L , 0x7fff );
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DBGA ( R5.H , 0x7fff );
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// integer extraction with negative saturation
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// 0x8000 * 0x7f -> 0x8000
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A1 = A0 = 0;
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R5.H = (A1 += R1.H * R3.L), R5.L = (A0 += R1.H * R3.L) (IS);
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DBGA ( R5.L , 0x8000 );
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DBGA ( R5.H , 0x8000 );
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pass
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.data;
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data0:
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.dw 0x0001
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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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