| // Copyright 2013 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. | |
| package runtime | |
| import "unsafe" | |
| // adjust Gobuf as if it executed a call to fn with context ctxt | |
| // and then did an immediate Gosave. | |
| func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) { | |
| if buf.lr != 0 { | |
| throw("invalid use of gostartcall") | |
| } | |
| buf.lr = buf.pc | |
| buf.pc = uintptr(fn) | |
| buf.ctxt = ctxt | |
| } | |
| // for testing | |
| func usplit(x uint32) (q, r uint32) |