mu - Soul of a tiny new machine. More thorough tests → More comprehensible and rewrite-friendly software → More resilient society.

	Commit message (Collapse)	Author	Age	Files	Lines
*	6957	Kartik Agaram	2020-10-05	1	-2/+30
\| \| \| \| \| \| \| \|	The final fix to the raytracing program involves rounding modes. It turns out x86 processors round floats by default, unlike C which has trained me to expect truncation. Rather than mess with the MXCSR register, I added another instruction for truncation. Now milestone 3 emits perfectly correct results.
*	6913 - copying floats around	Kartik Agaram	2020-09-30	1	-0/+75
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*	6911 - comparing floats	Kartik Agaram	2020-09-30	1	-0/+39
\| \| \| \| \| \| \|	It turns out floating-point operations set different flags than most instructions. We have to branch on them using unsigned jumps. https://stackoverflow.com/questions/7057501/x86-assembler-floating-point-compare/7057771#7057771
*	6910 - emulate most floating-point operations	Kartik Agaram	2020-09-30	1	-2/+300
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*	6886 - floating-point division	Kartik Agaram	2020-09-27	1	-0/+48
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*	6885 - starting on floating-point instructions	Kartik Agaram	2020-09-27	1	-0/+31
	I spent some time deciding on the instructions. x87 is a stack ISA, so not a good fit for the rest of SubX. So we use SSE instead. They operate on 32-bit floats, which seems like a good fit. SSE has a bunch of instructions for operating on up to 4 floats at once. We'll ignore all that and just focus on so-called scalar instructions.