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3b0fb27ae9
I misread the implementation details of this instruction when implementing. The pseudocode says `ST(0) = ST(0) ∗ 2^rndint(ST(1))` so I understood the instruction to use the current rounding mode of the host to extract the integer portion of `ST(1)`. The actual implementation is in the details of the statement `the integer portion of the floating- point value in ST(1).` This behaves like round towards zero/truncate, additional hardware testing and documentation reading confirms this. Fixes #1584
8 lines
142 B
Plaintext
8 lines
142 B
Plaintext
# Relies on undefined behaviour
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Test_32Bit_X87/D9_F9.asm
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Test_32Bit_X87/D9_F2.asm
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# Relies on rounding correctness
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Test_32Bit_X87/D9_F8.asm
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