C++ (Cpp) LBL_PREV 예제들

예제 #1

파일: synthetic.c 프로젝트: iainkfraser/TooLegitToJit

void syn_memsetw( struct machine_ops* mop, struct emitter* e, struct machine* m, operand d, operand v, operand size ){
	operand iter = OP_TARGETREG( acquire_temp( mop, e, m ) );			
	operand dst = OP_TARGETREG( acquire_temp( mop, e, m ) );

	// init iterator
	mop->move( e, m, iter, OP_TARGETIMMED( 0 ) );
	mop->move( e, m, dst, d );
	
	// start loop 
	e->ops->label_local( e, 0 );
	mop->beq( e, m, iter, size, LBL_NEXT( 0 ) );  

	// copy 
	mop->move( e, m, OP_TARGETDADDR( dst.reg, 0 ), v );
	
	// update pointers 
	mop->add( e, m, dst, dst, OP_TARGETIMMED( 4 ) );
	
	// update iterator
	mop->add( e, m, iter, iter, OP_TARGETIMMED( 1 ) );
	
	mop->b( e, m, LBL_PREV( 0 ) );
	e->ops->label_local( e, 0 );
	
	release_tempn( mop, e, m, 2 );
}

예제 #2

파일: synthetic.c 프로젝트: iainkfraser/TooLegitToJit

// this function could be inline
void syn_memcpyw( struct machine_ops* mop, struct emitter* e, struct machine* m, operand d, operand s, operand size ){
	operand iter = OP_TARGETREG( acquire_temp( mop, e, m ) );			
	operand src = OP_TARGETREG( acquire_temp( mop, e, m ) );
	operand dst = OP_TARGETREG( acquire_temp( mop, e, m ) );

	// init iterator
	mop->move( e, m, iter, OP_TARGETIMMED( 0 ) );
	mop->move( e, m, src, s );
	mop->move( e, m, dst, d );
	
	// start loop 
	e->ops->label_local( e, 0 );
	mop->beq( e, m, iter, size, LBL_NEXT( 0 ) );  

	// copy 
	mop->move( e, m, OP_TARGETDADDR( dst.reg, 0 ), OP_TARGETDADDR( src.reg, 0 ) );
	
	// update pointers 
	mop->add( e, m, dst, dst, OP_TARGETIMMED( -4 ) );	// TODO: this is incorrect in general but correct for copyargs
	mop->add( e, m, src, src, OP_TARGETIMMED( -4 ) ); 
	
	// update iterator
	mop->add( e, m, iter, iter, OP_TARGETIMMED( 1 ) );
	
	mop->b( e, m, LBL_PREV( 0 ) );
	e->ops->label_local( e, 0 );
	
	release_tempn( mop, e, m, 3 );
}

예제 #3

파일: xlogue.c 프로젝트: giannitedesco/TooLegitToJit

static void do_nilling( struct machine_ops* mop, struct emitter* e, struct machine* m, 
		operand iter, operand limit, operand dst ){

	// start loop 
	e->ops->label_local( e, 0 );
	mop->beq( e, m, iter, limit, LBL_NEXT( 0 ) ); 	// TODO: bgt is equiv to beq so swap? 

	// copy 
	mop->move( e, m, OP_TARGETDADDR( dst.reg, -4 ), OP_TARGETIMMED( LUA_TNIL ) );
	
	// update pointers 
	mop->add( e, m, dst, dst, OP_TARGETIMMED( -8 ) );	
	
	// update iterator
	mop->add( e, m, iter, iter, OP_TARGETIMMED( 1 ) );
	
	mop->b( e, m, LBL_PREV( 0 ) );
	e->ops->label_local( e, 0 );
}