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Diffstat (limited to 'js/src/lirasm/tests/softfloat/ii2d.in')
| -rw-r--r-- | js/src/lirasm/tests/softfloat/ii2d.in | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/lirasm/tests/softfloat/ii2d.in b/js/src/lirasm/tests/softfloat/ii2d.in new file mode 100644 index 0000000..7189917 --- /dev/null +++ b/js/src/lirasm/tests/softfloat/ii2d.in @@ -0,0 +1,20 @@ +; It's very difficult to test that the 'lo' part is actually doing anything +; because it tends to get lost when lirasm dumps the result to the console. +; By far the easiest way to check this is to use dlo2i and dhi2i to see if we +; get what we started with (assuming that those instructions work). + +hi = immi 1127219201 ; 0x43300001 (positive, exponent of +52 ... +lo = immi -1 ; 0xffffffff (... mantissa of 0x100001ffffffff) +d = ii2d lo hi +hi2 = dhi2i d +lo2 = dlo2i d + +; XOR to check for differences, then OR the two results. 0 indicates success, +; but anything else indicates some kind of loss of data. +rhi = xori hi hi2 +rlo = xori lo lo2 + +res = ori rhi rlo + +reti res + |