fusl/src/fenv/aarch64/fenv.s - Issue 1573973002: Add a "fork" of musl as //fusl.

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Side by Side Diff: fusl/src/fenv/aarch64/fenv.s

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master

Patch Set: Created 4 years, 11 months ago

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	1 .global fegetround

	2 .type fegetround,%function

	3 fegetround:

	4 mrs x0, fpcr

	5 and w0, w0, #0xc00000

	6 ret

	7

	8 .global __fesetround

	9 .type __fesetround,%function

	10 __fesetround:

	11 mrs x1, fpcr

	12 bic w1, w1, #0xc00000

	13 orr w1, w1, w0

	14 msr fpcr, x1

	15 mov w0, #0

	16 ret

	17

	18 .global fetestexcept

	19 .type fetestexcept,%function

	20 fetestexcept:

	21 and w0, w0, #0x1f

	22 mrs x1, fpsr

	23 and w0, w0, w1

	24 ret

	25

	26 .global feclearexcept

	27 .type feclearexcept,%function

	28 feclearexcept:

	29 and w0, w0, #0x1f

	30 mrs x1, fpsr

	31 bic w1, w1, w0

	32 msr fpsr, x1

	33 mov w0, #0

	34 ret

	35

	36 .global feraiseexcept

	37 .type feraiseexcept,%function

	38 feraiseexcept:

	39 and w0, w0, #0x1f

	40 mrs x1, fpsr

	41 orr w1, w1, w0

	42 msr fpsr, x1

	43 mov w0, #0

	44 ret

	45

	46 .global fegetenv

	47 .type fegetenv,%function

	48 fegetenv:

	49 mrs x1, fpcr

	50 mrs x2, fpsr

	51 stp w1, w2, [x0]

	52 mov w0, #0

	53 ret

	54

	55 // TODO preserve some bits

	56 .global fesetenv

	57 .type fesetenv,%function

	58 fesetenv:

	59 mov x1, #0

	60 mov x2, #0

	61 cmn x0, #1

	62 b.eq 1f

	63 ldp w1, w2, [x0]

	64 1: msr fpcr, x1

	65 msr fpsr, x2

	66 mov w0, #0

	67 ret

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