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-rw-r--r--src/runtime/sys_wasm.s135
1 files changed, 135 insertions, 0 deletions
diff --git a/src/runtime/sys_wasm.s b/src/runtime/sys_wasm.s
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+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+
+TEXT runtime·wasmDiv(SB), NOSPLIT, $0-0
+ Get R0
+ I64Const $-0x8000000000000000
+ I64Eq
+ If
+ Get R1
+ I64Const $-1
+ I64Eq
+ If
+ I64Const $-0x8000000000000000
+ Return
+ End
+ End
+ Get R0
+ Get R1
+ I64DivS
+ Return
+
+TEXT runtime·wasmTruncS(SB), NOSPLIT, $0-0
+ Get R0
+ Get R0
+ F64Ne // NaN
+ If
+ I64Const $0x8000000000000000
+ Return
+ End
+
+ Get R0
+ F64Const $0x7ffffffffffffc00p0 // Maximum truncated representation of 0x7fffffffffffffff
+ F64Gt
+ If
+ I64Const $0x8000000000000000
+ Return
+ End
+
+ Get R0
+ F64Const $-0x7ffffffffffffc00p0 // Minimum truncated representation of -0x8000000000000000
+ F64Lt
+ If
+ I64Const $0x8000000000000000
+ Return
+ End
+
+ Get R0
+ I64TruncF64S
+ Return
+
+TEXT runtime·wasmTruncU(SB), NOSPLIT, $0-0
+ Get R0
+ Get R0
+ F64Ne // NaN
+ If
+ I64Const $0x8000000000000000
+ Return
+ End
+
+ Get R0
+ F64Const $0xfffffffffffff800p0 // Maximum truncated representation of 0xffffffffffffffff
+ F64Gt
+ If
+ I64Const $0x8000000000000000
+ Return
+ End
+
+ Get R0
+ F64Const $0.
+ F64Lt
+ If
+ I64Const $0x8000000000000000
+ Return
+ End
+
+ Get R0
+ I64TruncF64U
+ Return
+
+TEXT runtime·exitThread(SB), NOSPLIT, $0-0
+ UNDEF
+
+TEXT runtime·osyield(SB), NOSPLIT, $0-0
+ UNDEF
+
+TEXT runtime·usleep(SB), NOSPLIT, $0-0
+ RET // TODO(neelance): implement usleep
+
+TEXT runtime·currentMemory(SB), NOSPLIT, $0
+ Get SP
+ CurrentMemory
+ I32Store ret+0(FP)
+ RET
+
+TEXT runtime·growMemory(SB), NOSPLIT, $0
+ Get SP
+ I32Load pages+0(FP)
+ GrowMemory
+ I32Store ret+8(FP)
+ RET
+
+TEXT ·resetMemoryDataView(SB), NOSPLIT, $0
+ CallImport
+ RET
+
+TEXT ·wasmExit(SB), NOSPLIT, $0
+ CallImport
+ RET
+
+TEXT ·wasmWrite(SB), NOSPLIT, $0
+ CallImport
+ RET
+
+TEXT ·nanotime1(SB), NOSPLIT, $0
+ CallImport
+ RET
+
+TEXT ·walltime(SB), NOSPLIT, $0
+ CallImport
+ RET
+
+TEXT ·scheduleTimeoutEvent(SB), NOSPLIT, $0
+ CallImport
+ RET
+
+TEXT ·clearTimeoutEvent(SB), NOSPLIT, $0
+ CallImport
+ RET
+
+TEXT ·getRandomData(SB), NOSPLIT, $0
+ CallImport
+ RET