diff options
Diffstat (limited to 'sim/testsuite/sim/bfin/m6.s')
| -rw-r--r-- | sim/testsuite/sim/bfin/m6.s | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sim/testsuite/sim/bfin/m6.s b/sim/testsuite/sim/bfin/m6.s new file mode 100644 index 0000000..738d623 --- /dev/null +++ b/sim/testsuite/sim/bfin/m6.s @@ -0,0 +1,57 @@ +// Test result extraction of mac instructions. +// Test basic edge values +// SIGNED INTEGER mode into SINGLE destination register +// test ops: "+=" +# mach: bfin + +.include "testutils.inc" + start + + +// load r0=0x80000001 +// 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 ++ ]; + +// integer extraction with no saturation +// 0x1 * 0x1 = 0x0000000001 -> 0x1 + A1 = A0 = 0; + R5.H = (A1 += R0.L * R0.L), R5.L = (A0 += R0.L * R0.L) (IS); + DBGA ( R5.L , 0x1 ); + DBGA ( R5.H , 0x1 ); + +// integer extraction with positive saturation +// 0x7fff * 0x7f -> 0x7fff + A1 = A0 = 0; + R5.H = (A1 += R1.L * R3.L), R5.L = (A0 += R1.L * R3.L) (IS); + DBGA ( R5.L , 0x7fff ); + DBGA ( R5.H , 0x7fff ); + +// integer extraction with negative saturation +// 0x8000 * 0x7f -> 0x8000 + A1 = A0 = 0; + R5.H = (A1 += R1.H * R3.L), R5.L = (A0 += R1.H * R3.L) (IS); + DBGA ( R5.L , 0x8000 ); + DBGA ( R5.H , 0x8000 ); + + pass + + .data; +data0: + .dw 0x0001 + .dw 0x8000 + .dw 0x7fff + .dw 0x8000 + .dw 0x0000 + .dw 0xf000 + .dw 0x007f + .dw 0x0000 + .dw 0x0080 + .dw 0x0000 |