sys_wasm.s

Documentation: runtime

     1// Copyright 2018 The Go Authors. All rights reserved.
     2// Use of this source code is governed by a BSD-style
     3// license that can be found in the LICENSE file.
     4
     5#include "textflag.h"
     6
     7TEXT runtime·wasmDiv(SB), NOSPLIT, $0-0
     8	Get R0
     9	I64Const $-0x8000000000000000
    10	I64Eq
    11	If
    12		Get R1
    13		I64Const $-1
    14		I64Eq
    15		If
    16			I64Const $-0x8000000000000000
    17			Return
    18		End
    19	End
    20	Get R0
    21	Get R1
    22	I64DivS
    23	Return
    24
    25TEXT runtime·wasmTruncS(SB), NOSPLIT, $0-0
    26	Get R0
    27	Get R0
    28	F64Ne // NaN
    29	If
    30		I64Const $0x8000000000000000
    31		Return
    32	End
    33
    34	Get R0
    35	F64Const $0x7ffffffffffffc00p0 // Maximum truncated representation of 0x7fffffffffffffff
    36	F64Gt
    37	If
    38		I64Const $0x8000000000000000
    39		Return
    40	End
    41
    42	Get R0
    43	F64Const $-0x7ffffffffffffc00p0 // Minimum truncated representation of -0x8000000000000000
    44	F64Lt
    45	If
    46		I64Const $0x8000000000000000
    47		Return
    48	End
    49
    50	Get R0
    51	I64TruncF64S
    52	Return
    53
    54TEXT runtime·wasmTruncU(SB), NOSPLIT, $0-0
    55	Get R0
    56	Get R0
    57	F64Ne // NaN
    58	If
    59		I64Const $0x8000000000000000
    60		Return
    61	End
    62
    63	Get R0
    64	F64Const $0xfffffffffffff800p0 // Maximum truncated representation of 0xffffffffffffffff
    65	F64Gt
    66	If
    67		I64Const $0x8000000000000000
    68		Return
    69	End
    70
    71	Get R0
    72	F64Const $0.
    73	F64Lt
    74	If
    75		I64Const $0x8000000000000000
    76		Return
    77	End
    78
    79	Get R0
    80	I64TruncF64U
    81	Return
    82
    83TEXT runtime·exitThread(SB), NOSPLIT, $0-0
    84	UNDEF
    85
    86TEXT runtime·osyield(SB), NOSPLIT, $0-0
    87	UNDEF
    88
    89TEXT runtime·growMemory(SB), NOSPLIT, $0
    90	Get SP
    91	I32Load pages+0(FP)
    92	GrowMemory
    93	I32Store ret+8(FP)
    94	RET
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