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| author | Mike Frysinger <vapier@gentoo.org> | 2021-01-05 22:09:57 -0500 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2021-01-15 19:18:34 -0500 |
| commit | 1368b914e93a3af332f787d3d41c106d11bb90da (patch) | |
| tree | 9893ccae5d2d8cbf2ce855e09d6b8f30b56a21bc /sim/testsuite/bfin/m4.s | |
| parent | e403a898b5893337baea73bcb001ece74042f351 (diff) | |
| download | gdb-1368b914e93a3af332f787d3d41c106d11bb90da.zip gdb-1368b914e93a3af332f787d3d41c106d11bb90da.tar.gz gdb-1368b914e93a3af332f787d3d41c106d11bb90da.tar.bz2 | |
sim: testsuite: flatten tree
Now that all port tests live under testsuite/sim/*/, and none live
in testsuite/ directly, flatten the structure by moving all of the
dirs under testsuite/sim/ to testsuite/ directly.
We need to stop passing --tool to dejagnu so that it searches all
dirs and not just ones that start with "sim". Since we have no
other dirs in this tree, and no plans to add any, should be fine.
Diffstat (limited to 'sim/testsuite/bfin/m4.s')
| -rw-r--r-- | sim/testsuite/bfin/m4.s | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/sim/testsuite/bfin/m4.s b/sim/testsuite/bfin/m4.s new file mode 100644 index 0000000..8977063 --- /dev/null +++ b/sim/testsuite/bfin/m4.s @@ -0,0 +1,124 @@ +// MAC test program. +// Test basic edge values +// SIGNED INTEGER mode +// test ops: "+=" "-=" "=" "NOP" +# 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 ++ ]; + +// 0x7fff * 0x7fff = 0x003fff0001 + A1 = A0 = 0; + A1 += R0.L * R1.L, A0 += R0.L * R1.L (IS); + R6 = A1.w; + R7.L = A1.x; + DBGA ( R6.L , 0x0001 ); + DBGA ( R6.H , 0x3fff ); + DBGA ( R7.L , 0x0000 ); + +// 0x8000 * 0x7fff = 0xffc0008000 + A1 = A0 = 0; + A1 += R0.H * R1.L, A0 += R0.H * R1.L (IS); + R6 = A1.w; + R7.L = A1.x; + DBGA ( R6.L , 0x8000 ); + DBGA ( R6.H , 0xc000 ); + DBGA ( R7.L , 0xffff ); + +// 0x8000 * 0x8000 = 0x0040000000 + A1 = A0 = 0; + A1 += R0.H * R1.H, A0 += R0.H * R1.H (IS); + R6 = A1.w; + R7.L = A1.x; + DBGA ( R6.L , 0x0000 ); + DBGA ( R6.H , 0x4000 ); + DBGA ( R7.L , 0x0000 ); + +// saturate positive by first loading large value into accums +// expected value is 0x7fffffffff + A1 = A0 = 0; + A1.w = R2; + A1.x = R3.L; + A0.w = R2; + A0.x = R3.L; + A1 += R0.L * R1.L, A0 += R0.L * R1.L (IS); + R6 = A1.w; + R7.L = A1.x; + DBGA ( R6.L , 0xffff ); + DBGA ( R6.H , 0xffff ); + DBGA ( R7.L , 0x007f ); + +// saturate negative +// expected value is 0x8000000000 + A1 = A0 = 0; + A1.x = R4.L; + A0.x = R4.L; + A1 += R0.L * R1.H, A0 += R0.L * R1.H (IS); + R6 = A1.w; + R7.L = A1.x; + DBGA ( R6.L , 0x0000 ); + DBGA ( R6.H , 0x0000 ); + DBGA ( R7.L , 0xff80 ); + +// saturate positive with "-=" +// expected value is 0x7fffffffff + A1 = A0 = 0; + A1.w = R2; + A1.x = R3.L; + A0.w = R2; + A0.x = R3.L; + A1 -= R0.H * R1.L, A0 -= R0.H * R1.L (IS); + R6 = A1.w; + R7.L = A1.x; + DBGA ( R6.L , 0xffff ); + DBGA ( R6.H , 0xffff ); + DBGA ( R7.L , 0x007f ); + +// saturate negative with "-=" +// expected value is 0x8000000000 + A1 = A0 = 0; + A1.x = R4.L; + A0.x = R4.L; + A1 -= R0.L * R1.L, A0 -= R0.L * R1.L (IS); + R6 = A1.w; + R7.L = A1.x; + DBGA ( R6.L , 0x0000 ); + DBGA ( R6.H , 0x0000 ); + DBGA ( R7.L , 0xff80 ); + +// 0x8000 * 0x8000 = 0xffc0000000 with "-=" + A1 = A0 = 0; + A1 -= R0.H * R1.H, A0 -= R0.H * R1.H (IS); + R6 = A1.w; + R7.L = A1.x; + DBGA ( R6.L , 0x0000 ); + DBGA ( R6.H , 0xc000 ); + DBGA ( R7.L , 0xffff ); + + pass + + .data 0x1000; +data0: + .dw 0x7fff + .dw 0x8000 + .dw 0x7fff + .dw 0x8000 + .dw 0x0000 + .dw 0xf000 + .dw 0x007f + .dw 0x0000 + .dw 0x0080 + .dw 0x0000 |