// Copyright Oliver Kowalke 2009. // Distributed under the Boost Software License, Version 1.0. // (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #include <cstddef> #include <cstdlib> #include <cstring> #include <iostream> #include <emmintrin.h> #include <boost/bind.hpp> #include <boost/context/all.hpp> #include "simple_stack_allocator.hpp" namespace ctx = boost::context; typedef ctx::simple_stack_allocator< 8 * 1024 * 1024, // 8MB 64 * 1024, // 64kB 8 * 1024 // 8kB > stack_allocator; ctx::fcontext_t fcm = 0; ctx::fcontext_t fc = 0; void echoSSE( int i) { __m128i xmm; xmm = _mm_set_epi32(i, i+1, i+2, i+3); uint32_t v32[4]; memcpy(&v32, &xmm, 16); std::cout << v32[0]; std::cout << v32[1]; std::cout << v32[2]; std::cout << v32[3]; } void echo( intptr_t param) { int i = ( int) ctx::jump_fcontext( & fc, fcm, 0); for (;;) { std::cout << i; echoSSE( i); std::cout << " "; i = ( int) ctx::jump_fcontext( & fc, fcm, 0); } } int main( int argc, char * argv[]) { stack_allocator alloc; void * sp = alloc.allocate( stack_allocator::default_stacksize() ); fc = ctx::make_fcontext( sp, stack_allocator::default_stacksize(), echo); ctx::jump_fcontext( & fcm, fc, 0); for ( int i = 0; i < 10; ++i) ctx::jump_fcontext( & fcm, fc, ( intptr_t) i); std::cout << "\nDone" << std::endl; return EXIT_SUCCESS; }