X-Git-Url: http://deadsoftware.ru/gitweb?p=dsw-obn.git;a=blobdiff_plain;f=src%2Fbackends%2Fjvm%2Fgenerator-jvm.c;h=f26c9513e000ca18cc3203fc0e67155b3111398c;hp=2a2abcdcd3632f1b73a22aecc2135138f8e94523;hb=HEAD;hpb=2a0d7e7fbb7dcccc65f98301a0627ee47c755f2f

diff --git a/src/backends/jvm/generator-jvm.c b/src/backends/jvm/generator-jvm.c
index 2a2abcd..f26c951 100644
--- a/src/backends/jvm/generator-jvm.c
+++ b/src/backends/jvm/generator-jvm.c
@@ -1,263 +1,563 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <stdarg.h>
+#include <stdint.h>
 #include <stdbool.h>
 #include <string.h>
 #include <assert.h>
 
 #include <gc.h>
 
-#include "../../../include/oberon.h"
 #include "../../oberon-internals.h"
+#include "../../oberon-type-compat.h"
+#include "../../generator.h"
 #include "generator-jvm.h"
+#include "generator-jvm-abi.h"
+#include "generator-jvm-asm.h"
+#include "generator-jvm-basic.h"
 
-char *
-new_string(const char * format, ...)
-{
-	va_list ptr;
-	va_start(ptr, format);
+static void
+push_item(gen_proc_t * p, oberon_item_t * item);
 
-	char buf[1024];
-	vsnprintf(buf, 1024, format, ptr);
+static void
+jvm_generate_new(gen_proc_t * p, oberon_type_t * type, int num);
 
-	va_end(ptr);
+static void
+jvm_generate_cast_prefix(gen_proc_t * p, char prefix, char postfix)
+{
+	if((prefix == 'b' || prefix == 's') && (postfix = 'l' || postfix == 'd'))
+	{
+		prefix = 'i';
+	}
 
-	char * result;
-	int size;
+	if(prefix == postfix)
+	{
+		return;
+	}
 
-	size = strlen(buf);
-	result = GC_MALLOC(size + 1);
-	memset(result, 0, size);
-	strncpy(result, buf, size);
+	if((prefix == 'l' || prefix == 'd') && (postfix == 'b' || postfix == 's'))
+	{
+		jvm_generate(p, 2, 1, "%c2i", prefix);
+		prefix = 'i';
+	}
 
-	return result;
+	int from_cell_size = jvm_cell_size_for_postfix(prefix);
+	int to_cell_size = jvm_cell_size_for_postfix(postfix);
+	jvm_generate(p, from_cell_size, to_cell_size, "%c2%c", prefix, postfix);
 }
 
-void
-oberon_generator_init_context(oberon_context_t * ctx)
+static void
+jvm_generate_cast_type(gen_proc_t * p, oberon_type_t * from, oberon_type_t * to)
 {
-	gen_context_t * gen_context = GC_MALLOC(sizeof *gen_context);
-	memset(gen_context, 0, sizeof *gen_context);
+	if(to -> class == OBERON_TYPE_RECORD || to -> class == OBERON_TYPE_POINTER)
+	{
+		if(to -> class == OBERON_TYPE_POINTER && to -> base -> class == OBERON_TYPE_RECORD)
+		{
+			char * full_name = jvm_get_class_full_name(to);
+			jvm_generate(p, 1, 1, "checkcast %s", full_name);
+		}
+	}
+	else
+	{
+		char prefix = jvm_get_prefix(from);
+		char postfix = jvm_get_postfix(to);
+		jvm_generate_cast_prefix(p, prefix, postfix);
+	}
+}
 
-	ctx -> gen_context = gen_context;
+static void
+jvm_generate_hard_cast_type(gen_proc_t * p, oberon_type_t * from, oberon_type_t * to)
+{
+	if(from -> class == OBERON_TYPE_REAL
+		&& (to -> class == OBERON_TYPE_INTEGER || to -> class == OBERON_TYPE_SYSTEM_BYTE))
+	{
+		char postfix = jvm_get_postfix(to);
+		if(from -> size <= 4)
+		{
+			jvm_generate(p, 1, 1, "invokestatic java/lang/Float/floatToRawIntBits(F)I");
+			jvm_generate_cast_prefix(p, 'i', postfix);
+		}
+		else
+		{
+			jvm_generate(p, 2, 2, "invokestatic java/lang/Double/doubleToRawLongBits(D)J");
+			jvm_generate_cast_prefix(p, 'l', postfix);
+		}
+	}
+	else if((from -> class == OBERON_TYPE_INTEGER || from -> class == OBERON_TYPE_SYSTEM_BYTE)
+		&& to -> class == OBERON_TYPE_REAL)
+	{
+		char prefix = jvm_get_prefix(from);
+		if(to -> size <= 4)
+		{
+			jvm_generate_cast_prefix(p, prefix, 'i');
+			jvm_generate(p, 1, 1, "invokestatic java/lang/Float/intBitsToFloat(I)F");
+		}
+		else
+		{
+			jvm_generate_cast_prefix(p, prefix, 'l');
+			jvm_generate(p, 2, 2, "invokestatic java/lang/Double/longBitsToDouble(J)D");
+		}
+	}
+	else
+	{
+		jvm_generate_cast_type(p, from, to);
+	}
 }
 
-void
-oberon_generator_destroy_context(oberon_context_t * ctx)
+static void
+check_index(gen_proc_t * p, oberon_type_t * index_type)
 {
-	ctx -> gen_context = NULL;
+	// TODO проверка валидности границ
+	char prefix = jvm_get_prefix(index_type);
+	jvm_generate_cast_prefix(p, prefix, 'i');
 }
 
-static char * get_class_full_name(oberon_context_t * ctx, oberon_type_t * type);
+/*
+ * Генерирует код для инициализации массива со статическим базовым типом
+ * ( aref -- )
+ */
 
-static char *
-get_descriptor(oberon_context_t * ctx, oberon_type_t * type)
+static void
+jvm_generate_array_initialization(gen_proc_t * p, oberon_type_t * arr)
+{
+	int dim = 0;
+	oberon_type_t * base = arr;
+	while(base -> class == OBERON_TYPE_ARRAY)
+	{
+		dim += 1;
+		base = base -> base;
+	}
+
+	if(base -> class != OBERON_TYPE_RECORD)
+	{
+		jvm_generate(p, 1, 0, "pop");
+		return;
+	}
+
+	struct {
+		int reg_index;
+		int reg_length;
+		int start;
+		int end;
+	} loop[dim];
+
+	int reg_dst;
+	reg_dst = jvm_alloc_register_untyped(p -> rf, false);
+	jvm_generate(p, 1, 0, "astore %i", reg_dst);
+
+	/*
+	 * Входящие параметры заграблены.
+	 * Теперь генерируем эквивалентный код:
+	 *   int i = 0;
+	 *   int len = dst.length
+	 *   while(i < len)
+	 *   {
+	 *     ...
+	 *     {
+	 *       dst[i, ...] = new record;
+	 *     }
+	 *     ...
+	 *     i += 1;
+	 *   }
+	 * Где "..." такой же код (начало и конец) для следующей размерности.
+	 */
+
+	for(int i = 0; i < dim; i++)
+	{
+		loop[i].reg_index = jvm_alloc_register_untyped(p -> rf, false);
+		loop[i].reg_length = jvm_alloc_register_untyped(p -> rf, false);
+		loop[i].start = jvm_new_label_id(p);
+		loop[i].end = jvm_new_label_id(p);
+
+		jvm_generate(p, 0, 1, "iconst_0");
+		jvm_generate(p, 1, 0, "istore %i", loop[i].reg_index);
+
+		jvm_generate(p, 0, 1, "aload %i", reg_dst);
+		jvm_generate(p, 1, 1, "arraylength");
+		jvm_generate(p, 1, 0, "istore %i", loop[i].reg_length);
+
+		/* if(i >= len) goto end; */
+		jvm_generate_label(p, loop[i].start);
+		jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
+		jvm_generate(p, 0, 1, "iload %i", loop[i].reg_length);
+		jvm_generate(p, 2, 0, "if_icmpge L%i", loop[i].end);
+	}
+
+	jvm_generate(p, 0, 1, "aload %i", reg_dst);
+	jvm_generate(p, 0, 1, "iload %i", loop[0].reg_index);
+	for(int i = 1; i < dim; i++)
+	{
+		jvm_generate(p, 2, 1, "aaload");
+		jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
+	}
+	jvm_generate_new(p, base, 0);
+	jvm_generate(p, 3, 0, "aastore");
+
+	for(int i = dim - 1; i >= 0; i--)
+	{
+		jvm_generate(p, 0, 0, "iinc %i 1", loop[i].reg_index);
+		jvm_generate(p, 0, 0, "goto L%i", loop[i].start);
+		jvm_generate_label(p, loop[i].end);
+	}
+}
+
+static void
+jvm_generate_new(gen_proc_t * p, oberon_type_t * type, int num)
 {
+	int dim;
+	char * cname;
 	char * desc;
+	oberon_type_t * base;
 
 	switch(type -> class)
 	{
-		case OBERON_TYPE_VOID:
-			return new_string("V");
-			break;
 		case OBERON_TYPE_INTEGER:
-			switch(type -> size)
-			{
-				case 1:
-					return new_string("B");
-					break;
-				case 2:
-					return new_string("S");
-					break;
-				case 4:
-					return new_string("I");
-					break;
-				case 8:
-					return new_string("J");
-					break;
-				default:
-					oberon_error(ctx, "get_descriptor: unsupported int size %i", type -> size);
-					break;
-			}
-			break;
-		case OBERON_TYPE_REAL:
-			switch(type -> size)
-			{
-				case 4:
-					return new_string("F");
-					break;
-				case 8:
-					return new_string("D");
-					break;
-				default:
-					oberon_error(ctx, "get_descriptor: unsupported float size %i", type -> size);
-					break;
-			}
-			break;
 		case OBERON_TYPE_BOOLEAN:
-			return new_string("Z");
-			break;
 		case OBERON_TYPE_PROCEDURE:
+		case OBERON_TYPE_REAL:
+		case OBERON_TYPE_POINTER:
+			gen_error("jvm_generate_new_static: static alocation not allowed");
+			break;
 		case OBERON_TYPE_RECORD:
-			desc = get_class_full_name(ctx, type);
-			return new_string("L%s;", desc);
+			assert(num == 0);
+			cname = jvm_get_class_full_name(type);
+			jvm_generate(p, 0, 1, "new %s", cname);
+			jvm_generate(p, 1, 2, "dup");
+			jvm_generate(p, 1, 0, "invokespecial %s/<init>()V", cname);
 			break;
 		case OBERON_TYPE_ARRAY:
-			desc = get_descriptor(ctx, type -> base);
-			return new_string("[%s", desc);
+			dim = 0;
+			base = type;
+			desc = jvm_get_descriptor(type);
+			while(base -> class == OBERON_TYPE_ARRAY)
+			{
+				if(num > 0)
+				{
+					assert(base -> size == 0);
+					num -= 1;
+				}
+				else
+				{
+					assert(base -> size > 0);
+					jvm_generate_push_int(p, base -> size);
+				}
+				dim += 1;
+				base = base -> base;
+			}
+
+			assert(num == 0);
+			jvm_generate(p, dim, 1, "multianewarray %s %i", desc, dim);
+			jvm_generate(p, 1, 2, "dup");
+			jvm_generate_array_initialization(p, type);
 			break;
 		default:
-			oberon_error(ctx, "print_descriptor: unsupported type class %i", type -> class);
+			gen_error("jvm_generate_new_static: unk type class %i", type -> class);
 			break;
 	}
+}
+
+/*
+ * Генерирует код для копирования полей из первой записи во вторую.
+ *  ( aref_dst aref_src -- )
+ *  dst := src;
+ */
 
-	return NULL;
+static void
+jvm_generate_copy_record(gen_proc_t * p, oberon_type_t * rec)
+{
+	assert(rec -> class == OBERON_TYPE_RECORD);
+	char * desc = jvm_get_descriptor(rec);
+	char * cname = jvm_get_class_full_name(rec);
+	jvm_generate(p, 1 + 1, 0, "invokestatic %s/$COPY$(%s%s)V", cname, desc, desc);
 }
 
-static char
-get_prefix(oberon_context_t * ctx, oberon_type_t * type)
+/*
+ * Генерирует кода для копирования массивов.
+ * ( aref_dst aref_src -- )
+ * dst := src;
+ */
+
+static void
+jvm_generate_copy_array(gen_proc_t * p, oberon_type_t * arr)
 {
-	int size = type -> size;
-	switch(type -> class)
+	int dim = 0;
+	oberon_type_t * base = arr;
+	while(base -> class == OBERON_TYPE_ARRAY)
 	{
-		case OBERON_TYPE_BOOLEAN:
-		case OBERON_TYPE_INTEGER:
-			return (size <= 4) ? ('i') : ('l');
-			break;
-		case OBERON_TYPE_PROCEDURE:
-		case OBERON_TYPE_ARRAY:
-		case OBERON_TYPE_RECORD:
-		case OBERON_TYPE_POINTER:
-			return 'a';
-			break;
-		case OBERON_TYPE_REAL:
-			return (size <= 4) ? ('f') : ('d');
-			break;
+		dim += 1;
+		base = base -> base;
 	}
 
-	oberon_error(ctx, "get_prefix: wat");
-	return '!';
-}
+	struct {
+		int reg_index;
+		int reg_length;
+		int start;
+		int end;
+	} loop[dim];
+
+	int reg_dst = jvm_alloc_register_untyped(p -> rf, false);
+	int reg_src = jvm_alloc_register_untyped(p -> rf, false);
+	jvm_generate(p, 1, 0, "astore %i", reg_src);
+	jvm_generate(p, 1, 0, "astore %i", reg_dst);
+
+	/*
+	 * Входящие параметры заграблены.
+	 * Теперь генерируем эквивалентный код:
+	 *   int i = 0;
+	 *   int len = src.length
+	 *   while(i < len)
+	 *   {
+	 *     ...
+	 *     {
+	 *       copy from src[i, ...] to dst[i, ...];
+	 *     }
+	 *     ...
+	 *     i += 1;
+	 *   }
+	 * Где "..." такой же код (начало и конец) для следующей размерности.
+	 */
+
+	for(int i = 0; i < dim; i++)
+	{
+		loop[i].reg_index = jvm_alloc_register_untyped(p -> rf, false);
+		loop[i].reg_length = jvm_alloc_register_untyped(p -> rf, false);
+		loop[i].start = jvm_new_label_id(p);
+		loop[i].end = jvm_new_label_id(p);
+
+		jvm_generate(p, 0, 1, "iconst_0");
+		jvm_generate(p, 1, 0, "istore %i", loop[i].reg_index);
+
+		jvm_generate(p, 0, 1, "aload %i", reg_src);
+		jvm_generate(p, 1, 1, "arraylength");
+		jvm_generate(p, 1, 0, "istore %i", loop[i].reg_length);
+
+		/* if(i >= len) goto end; */
+		jvm_generate_label(p, loop[i].start);
+		jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
+		jvm_generate(p, 0, 1, "iload %i", loop[i].reg_length);
+		jvm_generate(p, 2, 0, "if_icmpge L%i", loop[i].end);
+	}
 
-static char *
-get_field_full_name(oberon_context_t * ctx, oberon_object_t * x)
-{
-	return new_string("%s/%s", x -> module -> name, x -> name);
-}
+	if(base -> class == OBERON_TYPE_RECORD)
+	{
+		/* Получаем записи по индексам ( -- dst src ) */
 
-static char *
-get_class_full_name(oberon_context_t * ctx, oberon_type_t * type)
-{
-	int rec_id;
-	char * name = NULL;
+		jvm_generate(p, 0, 1, "aload %i", reg_dst);
+		for(int i = 0; i < dim; i++)
+		{
+			jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
+			jvm_generate(p, 2, 1, "aaload");
+		}
 
-	switch(type -> class)
+		jvm_generate(p, 0, 1, "aload %i", reg_src);
+		for(int i = 0; i < dim; i++)
+		{
+			jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
+			jvm_generate(p, 2, 1, "aaload");
+		}
+
+		/* Копируем записи ( dst src -- ) */
+		jvm_generate_copy_record(p, base);
+	}
+	else
 	{
-		case OBERON_TYPE_PROCEDURE:
-			name = new_string("SYSTEM$PROCEDURE");
+		char postfix = jvm_get_postfix(base);
+		int cell_size = jvm_cell_size_for_postfix(postfix);
 
-			char * desc;
-			desc = get_descriptor(ctx, type -> base);
-			name = new_string("%s$%s", name, desc);
+		/* Получаем массивы и индексы ( -- dst i src i ) */
 
-			int num = type -> num_decl;
-			oberon_object_t * arg = type -> decl;
-			for(int i = 0; i < num; i++)
-			{
-				desc = get_descriptor(ctx, arg -> type);
-				name = new_string("%s%s", name, desc);
-				arg = arg -> next;
-			}
+		jvm_generate(p, 0, 1, "aload %i", reg_dst);
+		jvm_generate(p, 0, 1, "iload %i", loop[0].reg_index);
+		for(int i = 1; i < dim; i++)
+		{
+			jvm_generate(p, 2, 1, "aaload");
+			jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
+		}
 
-			break;
-		case OBERON_TYPE_RECORD:
-			assert(type -> module);
-			assert(type -> module -> gen_mod);
-			rec_id = type -> gen_type -> rec_id;
-			name = new_string("%s$RECORD%i", type -> module -> name, rec_id);
-			break;
-		default:
-			oberon_error(ctx, "get_record_full_name: unk type class %i", type -> class);
-			break;
+		jvm_generate(p, 0, 1, "aload %i", reg_src);
+		jvm_generate(p, 0, 1, "iload %i", loop[0].reg_index);
+		for(int i = 1; i < dim; i++)
+		{
+			jvm_generate(p, 2, 1, "aaload");
+			jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
+		}
+
+		/* Копируем значения ( dst i src i -- ) */
+		jvm_generate(p, 2, cell_size, "%caload", postfix);
+		jvm_generate(p, 2 + cell_size, 0, "%castore", postfix);
 	}
 
-	return name;
+	for(int i = dim - 1; i >= 0; i--)
+	{
+		jvm_generate(p, 0, 0, "iinc %i 1", loop[i].reg_index);
+		jvm_generate(p, 0, 0, "goto L%i", loop[i].start);
+		jvm_generate_label(p, loop[i].end);
+	}
 }
 
-static char *
-get_procedure_signature(oberon_context_t * ctx, oberon_type_t * proc)
+static void
+jvm_generate_push_procedure_pointer(gen_proc_t * p, oberon_object_t * proc)
 {
-	char * signature;
-	char * desc;
-
-	signature = new_string("(");
+	char * full_name = jvm_get_field_full_name_safe(proc);
+	char * desc = jvm_get_descriptor(proc -> type);
+	jvm_generate(p, 0, 1, "getstatic %s/pointer %s", full_name, desc);
+}
 
-	int num = proc -> num_decl;
-	oberon_object_t * arg = proc -> decl;
-	for(int i = 0; i < num; i++)
-	{
-		desc = get_descriptor(ctx, arg -> type);
-		signature = new_string("%s%s", signature, desc);
-		arg = arg -> next;
-	}
+void
+oberon_generator_init_context(oberon_context_t * ctx)
+{
+	gen_context_t * gen_context = GC_MALLOC(sizeof *gen_context);
+	memset(gen_context, 0, sizeof *gen_context);
 
-	desc = get_descriptor(ctx, proc -> base);
-	signature = new_string("%s)%s", signature, desc);
+	ctx -> gen_context = gen_context;
+	gen_context -> dir = ".";
+}
 
-	return signature;
+void
+oberon_generator_destroy_context(oberon_context_t * ctx)
+{
 }
 
 static void
-oberon_generate_procedure_class(oberon_context_t * ctx, oberon_type_t * proc)
+oberon_generate_procedure_class(const char * dir, oberon_type_t * proc)
 {
 	FILE * fp;
 	char * cname;
-	char * fname;
 	char * signature;
+	struct gen_class * class; 
 
-	cname = get_class_full_name(ctx, proc);
-	fname = new_string("%s.j", cname);
-
-	fp = fopen(fname, "w");
+	cname = jvm_get_class_full_name(proc);
+	class = jvm_create_class(dir, cname);
+	fp = class -> fp;
 
 	fprintf(fp, ".source SYSTEM\n");
 	fprintf(fp, ".class  public abstract %s\n", cname);
 	fprintf(fp, ".super  java/lang/Object\n\n");
 
-	signature = get_procedure_signature(ctx, proc);
-
-	fprintf(fp, ".method public <init>()V\n");
+	fprintf(fp, ".method <init>()V\n");
 	fprintf(fp, "  aload_0\n");
 	fprintf(fp, "  invokespecial java/lang/Object/<init>()V\n");
 	fprintf(fp, "  return\n");
-	fprintf(fp, ".end method\n");
+	fprintf(fp, ".end method\n\n");
+
+	signature = jvm_get_procedure_signature(proc);
 
 	fprintf(fp, ".method public abstract invoke%s\n", signature);
 	fprintf(fp, ".end method\n\n");
 
-	fclose(fp);
+	jvm_destroy_class(class);
 }
 
 static void
-oberon_generate_record_class(oberon_context_t * ctx, oberon_type_t * rec)
+oberon_generate_procedure_pointer_class(const char * dir, oberon_object_t * proc)
 {
 	FILE * fp;
 	char * cname;
-	char * fname;
+	char * abscname;
+	char * absdesc;
+	char * signature;
+	struct gen_class * class;
+
+	cname = jvm_get_field_full_name_safe(proc);
+	class = jvm_create_class(dir, cname);
+	abscname = jvm_get_class_full_name(proc -> type);
+	absdesc = jvm_get_descriptor(proc -> type);
+	fp = class -> fp;
+
+	fprintf(fp, ".source %s\n", proc -> module -> name);
+	fprintf(fp, ".class  public %s\n", cname);
+	fprintf(fp, ".super  %s\n\n", abscname);
+
+	fprintf(fp, ".field public static pointer %s\n\n", absdesc);
+
+	fprintf(fp, ".method private <init>()V\n");
+	fprintf(fp, "  aload_0\n");
+	fprintf(fp, "  invokespecial %s/<init>()V\n", abscname);
+	fprintf(fp, "  return\n");
+	fprintf(fp, ".end method\n\n");
+
+	fprintf(fp, ".method static <clinit>()V\n");
+	fprintf(fp, "  .limit stack 2\n");
+	fprintf(fp, "  new %s\n", cname);
+	fprintf(fp, "  dup\n");
+	fprintf(fp, "  invokespecial %s/<init>()V\n", cname);
+	fprintf(fp, "  putstatic %s/pointer %s\n", cname, absdesc);
+	fprintf(fp, "  return\n");
+	fprintf(fp, ".end method\n\n");
+
+	signature = jvm_get_procedure_signature(proc -> type);
+
+	gen_proc_t * p = jvm_create_proc(class);
+	jvm_generate_function_header(p, "public", "invoke", signature);
+	jvm_alloc_register_untyped(p -> rf, false);
+
+	int use_size = 0;
+	int num = proc -> type -> num_decl;
+	oberon_object_t * param = proc -> type -> decl;
+	for(int i = 0; i < num; i++)
+	{
+		gen_type_t * t = param -> type -> gen_type;
+		if(param -> class == OBERON_CLASS_VAR_PARAM)
+		{
+			int reg = jvm_alloc_register_untyped(p -> rf, true);
+			jvm_generate(p, 0, 1, "aload %i", reg);
+			jvm_generate(p, 0, 1, "iload %i", reg + 1);
+		}
+		else
+		{
+			int reg = jvm_alloc_register_untyped(p -> rf, t -> wide);
+			jvm_generate(p, 0, t -> cell_size, "%cload %i", t -> prefix, reg);
+		}
+		use_size += t -> cell_size;
+		param = param -> next;
+	}
+	
+	char * full_name = jvm_get_field_full_name(proc);
+	int cell_size = jvm_cell_size_for_type(proc -> type -> base);
+	jvm_generate(p, use_size, cell_size, "invokestatic %s%s", full_name, signature);
+
+	if(proc -> type -> base -> class == OBERON_TYPE_NOTYPE)
+	{
+		jvm_generate(p, 0, 0, "return");
+	}
+	else
+	{
+		char prefix = jvm_get_prefix(proc -> type -> base);
+		jvm_generate(p, cell_size, 0, "%creturn", prefix);
+	}
+
+	jvm_generate_function_end(p);
+
+	jvm_destroy_class(class);
+}
+
+static void
+oberon_generate_record_class(const char * dir, gen_module_t * m, oberon_type_t * rec)
+{
+	char * cname;
+	struct gen_class * class;
 
 	/* Устанавливаем новоый id */
-	rec -> gen_type -> rec_id = rec -> module -> gen_mod -> rec_id;
-	rec -> module -> gen_mod -> rec_id += 1;
+	rec -> gen_type -> rec_id = m -> rec_id;
+	m -> rec_id += 1;
 
-	cname = get_class_full_name(ctx, rec);
-	fname = new_string("%s.j", cname);
+	cname = jvm_get_class_full_name(rec);
+	class = jvm_create_class(dir, cname);
 
-	fp = fopen(fname, "w");
+	fprintf(class -> fp, ".source %s\n", rec -> module -> name);
+	fprintf(class -> fp, ".class  public %s\n", cname);
 
-	fprintf(fp, ".source %s\n", rec -> module -> name);
-	fprintf(fp, ".class  public %s\n", cname);
-	fprintf(fp, ".super  java/lang/Object\n\n");
+	if(rec -> base == NULL)
+	{
+		fprintf(class -> fp, ".super  java/lang/Object\n\n");
+	}
+	else
+	{
+		class -> base = rec -> base -> gen_type -> class;
+		fprintf(class -> fp, ".super  %s\n\n", class -> base -> full_name);
+	}
 
-	rec -> gen_type -> fp = fp;
+	rec -> gen_type -> class = class;
 }
 
 void
@@ -267,111 +567,258 @@ oberon_generator_init_type(oberon_context_t * ctx, oberon_type_t * type)
 	memset(t, 0, sizeof *t);
 	type -> gen_type = t;
 
+	gen_context_t * c;
+	c = ctx -> gen_context;
+
+	gen_module_t * m;
 	switch(type -> class)
 	{
-		case OBERON_TYPE_VOID:
+		case OBERON_TYPE_NOTYPE:
 		case OBERON_TYPE_INTEGER:
 		case OBERON_TYPE_BOOLEAN:
 		case OBERON_TYPE_ARRAY:
+		case OBERON_TYPE_POINTER:
 		case OBERON_TYPE_REAL:
+		case OBERON_TYPE_CHAR:
+		case OBERON_TYPE_STRING:
+		case OBERON_TYPE_SET:
+		case OBERON_TYPE_NIL:
+		case OBERON_TYPE_SYSTEM_BYTE:
+		case OBERON_TYPE_SYSTEM_PTR:
 			break;
 		case OBERON_TYPE_RECORD:
-			oberon_generate_record_class(ctx, type);
+			m = type -> module -> gen_mod;
+			t -> full_name = jvm_get_class_full_name(type);
+			oberon_generate_record_class(c -> dir, m, type);
 			break;
 		case OBERON_TYPE_PROCEDURE:
-			oberon_generate_procedure_class(ctx, type);
-			break;
-		case OBERON_TYPE_POINTER:
-			assert(type -> base -> class == OBERON_TYPE_VOID);
+			oberon_generate_procedure_class(c -> dir, type);
 			break;
 		default:
-			oberon_error(ctx, "oberon_generator_init_type: unk calss %i", type -> class);
+			gen_error("oberon_generator_init_type: unk calss %i", type -> class);
 			break;
 	}
-}
 
-static void
-oberon_generate_object(oberon_context_t * ctx, FILE * fp, oberon_object_t * x)
-{
-	char * name;
-	char * desc;
+	if(type -> class != OBERON_TYPE_NOTYPE)
+	{
+		t -> wide = jvm_is_wide_type(type);
+		t -> prefix = jvm_get_prefix(type);
+		t -> postfix = jvm_get_postfix(type);
+	}
 
-	name = x -> name;
-	desc = get_descriptor(ctx, x -> type);
-	switch(x -> class)
+	if((type -> class == OBERON_TYPE_POINTER && type -> base -> class == OBERON_TYPE_RECORD) ||
+		type -> class == OBERON_TYPE_PROCEDURE ||
+		type -> class == OBERON_TYPE_RECORD ||
+		type -> class == OBERON_TYPE_SYSTEM_PTR)
 	{
-		case OBERON_CLASS_VAR:
-			fprintf(fp, ".field public static %s %s\n\n", name, desc);
-			break;
-		case OBERON_CLASS_FIELD:
-			fprintf(fp, ".field public %s %s\n\n", name, desc);
-			break;
-		default:
-			oberon_error(ctx, "oberon_generate_object: unk class %i", x -> class);
-			break;
+		t -> full_name = jvm_get_class_full_name(type);
+	}
+
+	t -> cell_size = jvm_cell_size_for_type(type);
+
+	if(type -> class != OBERON_TYPE_NIL)
+	{
+		t -> desc = jvm_get_descriptor(type);
 	}
 }
 
 void
 oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * rec)
 {
-	FILE * fp;
-
-	fp = rec -> gen_type -> fp;
+	struct gen_class * class;
+	class = rec -> gen_type -> class;
 
 	int num = rec -> num_decl;
 	oberon_object_t * field = rec -> decl;
 	for(int i = 0; i < num; i++)
 	{
-		oberon_generate_object(ctx, fp, field);
+		jvm_generate_var(field -> gen_var);
 		field = field -> next;
 	}
 
-	fprintf(fp, ".method public <init>()V\n");
-	fprintf(fp, "  aload_0\n");
-	fprintf(fp, "  invokespecial java/lang/Object/<init>()V\n");
-	fprintf(fp, "  return\n");
-	fprintf(fp, ".end method\n");
+	/* Стандартный конструктор класса */
+	/* Инициализирует внутренние статические записи и массивы */
+	gen_proc_t * p = jvm_create_proc(class);
+	jvm_generate_function_header(p, "public", "<init>", "()V");
+	jvm_alloc_register_untyped(p -> rf, false);
+	jvm_generate(p, 0, 1, "aload_0");
+	if(class -> base)
+	{
+		jvm_generate(p, 1, 0, "invokespecial %s/<init>()V", class -> base -> full_name);
+	}
+	else
+	{
+		jvm_generate(p, 1, 0, "invokespecial java/lang/Object/<init>()V");
+	}
+	num = rec -> num_decl;
+	field = rec -> decl;
+	for(int i = 0; i < num; i++)
+	{
+		jvm_generate(p, 0, 1, "aload_0");
+		jvm_generate_var_initialization(p, field -> gen_var);
 
-	fclose(fp);
+		if(field -> type -> class == OBERON_TYPE_RECORD
+			|| field -> type -> class == OBERON_TYPE_ARRAY)
+		{
+			jvm_generate(p, 0, 1, "aload_0");
+			jvm_generate_ldst_prepare(p, field -> gen_var);
+			jvm_generate_new(p, field -> type, 0);
+			jvm_generate_store(p, field -> gen_var);
+		}
+		field = field -> next;
+	}
+	jvm_generate(p, 0, 0, "return");
+	jvm_generate_function_end(p);
+
+	/* Метод для копирования полей класса */
+	/* reg0 == src -> reg1 == dst */
+	p = jvm_create_proc(class);
+	char * signature = new_string("(%s%s)V", rec -> gen_type -> desc, rec -> gen_type -> desc);
+	jvm_generate_function_header(p, "public static", "$COPY$", signature);
+
+	gen_var_t * copy_dst = jvm_create_function_var(p, JVM_STORAGE_REGISTER, "dst", rec -> gen_type);
+	gen_var_t * copy_src = jvm_create_function_var(p, JVM_STORAGE_REGISTER, "src", rec -> gen_type);
+	jvm_generate_var(copy_dst);
+	jvm_generate_var(copy_src);
+	jvm_generate_var_initialization(p, copy_dst);
+	jvm_generate_var_initialization(p, copy_src);
+
+	if(rec -> base)
+	{
+		jvm_generate_load(p, copy_dst);
+		jvm_generate_load(p, copy_src);
+		jvm_generate_copy_record(p, rec -> base);
+	}
+
+	num = rec -> num_decl;
+	field = rec -> decl;
+	for(int i = 0; i < num; i++)
+	{
+		if(field -> type -> class == OBERON_TYPE_RECORD)
+		{
+			jvm_generate_load(p, copy_dst);
+			jvm_generate_load(p, field -> gen_var);
+			jvm_generate_load(p, copy_src);
+			jvm_generate_load(p, field -> gen_var);
+			jvm_generate_copy_record(p, field -> type);
+		}
+		else if(field -> type -> class == OBERON_TYPE_ARRAY)
+		{
+			jvm_generate_load(p, copy_dst);
+			jvm_generate_load(p, field -> gen_var);
+			jvm_generate_load(p, copy_src);
+			jvm_generate_load(p, field -> gen_var);
+			jvm_generate_copy_array(p, field -> type);
+		}
+		else
+		{
+			jvm_generate_load(p, copy_dst);
+			jvm_generate_ldst_prepare(p, field -> gen_var);
+			jvm_generate_load(p, copy_src);
+			jvm_generate_load(p, field -> gen_var);
+			jvm_generate_store(p, field -> gen_var);
+		}
+		field = field -> next;
+	}
+	jvm_generate(p, 0, 0, "return");
+	jvm_generate_function_end(p);
+
+	jvm_destroy_class(class);
 }
 
 void
 oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
 {
-	gen_var_t * v = GC_MALLOC(sizeof *v);
-	memset(v, 0, sizeof *v);
-	var -> gen_var = v;
+	gen_module_t * m;
+	m = ctx -> mod -> gen_mod;
+
+	struct gen_class * class;
+	class = m -> class;
 
-	gen_module_t * m = ctx -> mod -> gen_mod;	
+	gen_proc_t * p;
+	struct gen_class * c;
+	char * name = var -> name;
+	gen_type_t * t = var -> type -> gen_type;
+
+	assert(name);
+	if(t == NULL)
+	{
+		gen_error("uninitialized type class %i", var -> type -> class);
+	}
 
 	switch(var -> class)
 	{
+		case OBERON_CLASS_VAR_PARAM:
+			p = var -> parent -> gen_proc;
+			var -> gen_var = jvm_create_function_var(p, JVM_STORAGE_FRAME_PARAM_VARPTR, name, t);
+			break;
 		case OBERON_CLASS_PARAM:
+			p = var -> parent -> gen_proc;
+			var -> gen_var = jvm_create_function_var(p, JVM_STORAGE_FRAME_PARAM_VAR, name, t);
+			break;
 		case OBERON_CLASS_FIELD:
+			c = var -> parent_type -> gen_type -> class;
+			var -> gen_var = jvm_create_class_var(c, JVM_STORAGE_FIELD_VAR, name, t);
 			break;
 		case OBERON_CLASS_VAR:
-			oberon_generate_object(ctx, m -> fp, var);
+			if(var -> local)
+			{
+				p = var -> parent -> gen_proc;
+				var -> gen_var = jvm_create_function_var(p, JVM_STORAGE_FRAME_VAR, name, t);
+			}
+			else
+			{
+				var -> gen_var = jvm_create_class_var(class, JVM_STORAGE_STATIC_VAR, name, t);
+				jvm_generate_var(var -> gen_var);
+			}
 			break;
 		default:
-			oberon_error(ctx, "oberon_generator_init_var: unk var class %i", var -> class);
+			gen_error("oberon_generator_init_var: unk var class %i", var -> class);
 			break;
 	}
 }
 
-void
-oberon_generator_init_proc(oberon_context_t * ctx, oberon_object_t * proc)
+static void
+oberon_generate_static_initialization(gen_proc_t * p, oberon_object_t * x)
 {
-	gen_proc_t * p = GC_MALLOC(sizeof *p);
-	memset(p, 0, sizeof *p);
-	proc -> gen_proc = p;
-
-	if(proc -> local)
+	if(x -> type -> class == OBERON_TYPE_ARRAY
+		|| x -> type -> class == OBERON_TYPE_RECORD)
 	{
-		oberon_error(ctx, "generator: local procedures not implemented");
+		jvm_generate_ldst_prepare(p, x -> gen_var);
+		jvm_generate_new(p, x -> type, 0);
+		jvm_generate_store(p, x -> gen_var);
 	}
 }
 
+void
+oberon_generator_init_temp_var(oberon_context_t * ctx, oberon_object_t * var)
+{
+	assert(var -> class == OBERON_CLASS_VAR);
+
+	gen_module_t * m;
+	m = ctx -> mod -> gen_mod;
+
+	gen_proc_t * p;
+	p = m -> class -> p;
+
+	gen_type_t * t;
+	t = var -> type -> gen_type;
+
+	var -> gen_var = jvm_create_function_temp_var(p, t);
+	jvm_generate_var(var -> gen_var);
+	jvm_generate_var_initialization(p, var -> gen_var);
+	oberon_generate_static_initialization(p, var);
+}
+
+void
+oberon_generator_init_proc(oberon_context_t * ctx, oberon_object_t * proc)
+{
+	struct gen_class * class = proc -> module -> gen_mod -> class;
+	proc -> gen_proc = jvm_create_proc(class);
+	proc -> gen_proc -> full_name = jvm_get_field_full_name_safe(proc);
+	jvm_create_static_links(proc);
+}
+
 void
 oberon_generator_init_module(oberon_context_t * ctx, oberon_module_t * mod)
 {
@@ -379,275 +826,961 @@ oberon_generator_init_module(oberon_context_t * ctx, oberon_module_t * mod)
 	memset(m, 0, sizeof *m);
 	mod -> gen_mod = m;
 
-	int fnamesz = strlen(mod -> name) + 3;
-	char fname[fnamesz + 1];
-	snprintf(fname, fnamesz, "%s.j", mod -> name);
+	gen_context_t * c;
+	c = ctx -> gen_context;
 
-	FILE * fp;
-	fp = fopen(fname, "w");
-	assert(fp != NULL);
+	struct gen_class * class;
+	class = jvm_create_class(c -> dir, mod -> name);
+
+	fprintf(class -> fp, ".source %s\n", mod -> name);
+	fprintf(class -> fp, ".class %s\n", mod -> name);
+	fprintf(class -> fp, ".super java/lang/Object\n\n");
+
+	fprintf(class -> fp, ".field private static $INITIALIZED$ Z\n\n");
+
+	m -> class = class;
 
-	fprintf(fp, ".source %s\n", mod -> name);
-	fprintf(fp, ".class %s\n", mod -> name);
-	fprintf(fp, ".super java/lang/Object\n\n");
+	c -> current_m = m;
+}
 
-	m -> fp = fp;
+void
+oberon_generator_fini_module(oberon_module_t * mod)
+{
+	jvm_destroy_class(mod -> gen_mod -> class);
 }
 
-// =======================================================================
-//   GENERATOR
-// ======================================================================= 
+static void
+push_expr(gen_proc_t * p, oberon_expr_t * expr);
 
 void
 oberon_generate_begin_module(oberon_context_t * ctx)
 {
-	gen_module_t * m = ctx -> mod -> gen_mod;
-	fprintf(m -> fp, ".method public <init>()V\n");
-	fprintf(m -> fp, "  aload_0\n");
-	fprintf(m -> fp, "  invokespecial java/lang/Object/<init>()V\n");
+	gen_proc_t * p;
+	int label_cont;
+	struct gen_class * class;
+
+	class = ctx -> mod -> gen_mod -> class;
+
+	p = jvm_create_proc(class);
+	jvm_generate_function_header(p, "public static", "BEGIN", "()V");
+
+	label_cont = jvm_new_label_id(p);
+	jvm_generate(p, 0, 1, "getstatic %s/$INITIALIZED$ Z", class -> full_name);
+	jvm_generate(p, 1, 0, "ifeq L%i", label_cont);
+	jvm_generate(p, 0, 0, "return");
+	jvm_generate_label(p, label_cont);
+
+	jvm_generate(p, 0, 1, "iconst_1");
+	jvm_generate(p, 1, 0, "putstatic %s/$INITIALIZED$ Z", class -> full_name);
+
+	/* Инициализация переменных объявленных в модуле */
+	oberon_object_t * x = ctx -> mod -> decl -> list -> next;
+	while(x != NULL)
+	{
+		if(x -> class == OBERON_CLASS_MODULE)
+		{
+			if(!x -> module -> intrinsic)
+			{
+				jvm_generate(p, 0, 0, "invokestatic %s/BEGIN()V", x -> module -> gen_mod -> class -> full_name);
+			}
+		}
+		else if(x -> class == OBERON_CLASS_VAR)
+		{
+			jvm_generate_var_initialization(p, x -> gen_var);
+			oberon_generate_static_initialization(p, x);
+		}
+
+		x = x -> next;
+	}
 }
 
 void
 oberon_generate_end_module(oberon_context_t * ctx)
 {
-	gen_module_t * m = ctx -> mod -> gen_mod;
+	struct gen_class * class = ctx -> mod -> gen_mod -> class;
+	gen_proc_t * p = class -> p;
+
+	jvm_generate(p, 0, 0, "return");
+	jvm_generate_function_end(class -> p);
+
+	p = jvm_create_proc(class);
+	jvm_generate_function_header(p, "private", "<init>", "()V");
+	jvm_alloc_register_untyped(p -> rf, false);
+	jvm_generate(p, 0, 1, "aload_0");
+	jvm_generate(p, 1, 0, "invokespecial java/lang/Object/<init>()V");
+	jvm_generate(p, 0, 0, "return");
+	jvm_generate_function_end(class -> p);
+}
 
-	fprintf(m -> fp, "  .limit stack 32\n");
-	fprintf(m -> fp, "  .limit locals 32\n");
-	fprintf(m -> fp, "  return\n");
-	fprintf(m -> fp, ".end method\n");
+/*
+ * Генерирует код для получения размера измерения массива
+ * Аналог Обероновского LEN(v, n); где n = 0 - первое измерение.
+ * ( aref -- int )
+ */
+
+static void
+jvm_generate_array_len(gen_proc_t * p, int dim)
+{
+	while(dim > 0)
+	{
+		jvm_generate(p, 0, 1, "iconst_0");
+		jvm_generate(p, 2, 1, "aaload");
+		dim -= 1;
+	}
+	jvm_generate(p, 1, 1, "arraylength");
+}
+
+static void
+jvm_generate_array_duplicate_and_replace(gen_proc_t * p, gen_var_t * v, oberon_type_t * arr)
+{
+	jvm_generate_ldst_prepare(p, v);
+
+	int dim = 0;
+	oberon_type_t * base = arr;
+	while(base -> class == OBERON_TYPE_ARRAY)
+	{
+		if(base -> size == 0)
+		{
+			jvm_generate_load(p, v);
+			jvm_generate_array_len(p, dim);
+			dim += 1;
+		}
+		base = base -> base;
+	}
+
+	jvm_generate_new(p, arr, dim);
+	jvm_generate(p, 1, 2, "dup");
+	jvm_generate_load(p, v);
+	jvm_generate_copy_array(p, arr);
+	jvm_generate_store(p, v);
+}
+
+static void
+jvm_generate_record_duplicate_and_replace(gen_proc_t * p, gen_var_t * v, oberon_type_t * rec)
+{
+	jvm_generate_ldst_prepare(p, v);
+	jvm_generate_new(p, rec, 0);
+	jvm_generate(p, 1, 2, "dup");
+	jvm_generate_load(p, v);
+	jvm_generate_copy_record(p, rec);
+	jvm_generate_store(p, v);
+}
+
+static void
+jvm_generate_local_object(gen_proc_t * p, oberon_object_t * x)
+{
+	gen_var_t * v;
+	struct gen_class * class;
+
+	v = x -> gen_var;
+	class = p -> class;
+
+	// Убеждаемся что сейчас находимся в функции
+	assert(class -> p);
+	assert(x -> local);
+
+	switch(x -> class)
+	{
+		case OBERON_CLASS_VAR_PARAM:
+		case OBERON_CLASS_PARAM:
+		case OBERON_CLASS_VAR:
+			jvm_generate_var(v);
+			break;
+		case OBERON_CLASS_CONST:
+		case OBERON_CLASS_TYPE:
+		case OBERON_CLASS_PROC:
+			break;
+		default:
+			gen_error("jvm_generate_local_initialization: wat class %i", x -> class);
+			break;
+	}
+}
+
+static void
+jvm_generate_local_initialization(gen_proc_t * p, oberon_object_t * x)
+{
+	gen_var_t * v;
+	struct gen_class * class;
+
+	v = x -> gen_var;
+	class = p -> class;
+
+	// Убеждаемся что сейчас находимся в функции
+	assert(class -> p);
+	assert(x -> local);
+
+	switch(x -> class)
+	{
+		case OBERON_CLASS_VAR_PARAM:
+			jvm_generate_var_initialization(p, v);
+			break;
+		case OBERON_CLASS_PARAM:
+			jvm_generate_var_initialization(p, v);
+			if(x -> type -> class == OBERON_TYPE_ARRAY)
+			{
+				jvm_generate_array_duplicate_and_replace(p, v, x -> type);
+			}
+			else if(x -> type -> class == OBERON_TYPE_RECORD)
+			{				
+				jvm_generate_record_duplicate_and_replace(p, v, x -> type);
+			}
+			break;
+		case OBERON_CLASS_VAR:
+			jvm_generate_var_initialization(p, v);
+			oberon_generate_static_initialization(p, x);
+			break;
+		case OBERON_CLASS_CONST:
+		case OBERON_CLASS_TYPE:
+		case OBERON_CLASS_PROC:
+			break;
+		default:
+			gen_error("jvm_generate_local_initialization: wat class %i", x -> class);
+			break;
+	}
 }
 
 void
 oberon_generate_begin_proc(oberon_context_t * ctx, oberon_object_t * proc)
 {
-	gen_module_t * m;
+	gen_proc_t * p;
+	char * name;
 	char * signature;
+	oberon_object_t * var;
+
+	p = proc -> gen_proc;
+
+	if(proc -> local)
+	{
+		signature = jvm_get_local_procedure_signature(proc);
+	}
+	else
+	{
+		oberon_generate_procedure_pointer_class(p -> class -> dir, proc);
+		signature = jvm_get_procedure_signature(proc -> type);
+	}
+
+	name = jvm_get_name(proc);
+	p -> ret_prefix = jvm_get_prefix(proc -> type -> base);
+	jvm_generate_function_header(p, "public static", name, signature);
+
+	if(proc -> local)
+	{
+		jvm_generate_staticlinks(proc);
+	}
+
+	jvm_generate_procedure_frame(proc);
+
+	/* Создание параметров и переменных */
+	var = proc -> scope -> list -> next;
+	while(var)
+	{
+		jvm_generate_local_object(p, var);
+		var = var -> next;
+	}
+
+	jvm_generate_frame_initialization(p);
+
+	/* Инициализация парамеров и переменных */
+	var = proc -> scope -> list -> next;
+	while(var)
+	{
+		jvm_generate_local_initialization(p, var);
+		var = var -> next;
+	}
+}
+
+void
+oberon_generate_end_proc(oberon_context_t * ctx)
+{
+	gen_module_t * m;
+	gen_proc_t * p;
 
 	m = ctx -> mod -> gen_mod;
-	signature = get_procedure_signature(ctx, proc -> type);
+	p = m -> class -> p;
 
-	fprintf(m -> fp, ".method public static %s%s\n", proc -> name, signature);
+	oberon_generate_trap(ctx, -4);
+
+	if(p -> ret_prefix == ' ')
+	{
+		jvm_generate(p, 0, 0, "return");
+	}
+	else
+	{
+		int sz = jvm_cell_size_for_postfix(p -> ret_prefix);
+		switch(p -> ret_prefix)
+		{
+			case 'a':
+				jvm_generate(p, 0, 1, "aconst_null");
+				break;
+			case 'l':
+				jvm_generate_push_int_size(p, 0, 8);
+				break;
+			case 'f':
+				jvm_generate_push_float(p, 0, 4);
+				break;
+			case 'd':
+				jvm_generate_push_float(p, 0, 8);
+				break;
+			default:
+				jvm_generate_push_int(p, 0);
+				break;
+		}
+		jvm_generate(p, sz, 0, "%creturn", p -> ret_prefix);
+	}
+
+	jvm_generate_function_end(p);
+}
+
+gen_label_t *
+oberon_generator_reserve_label(oberon_context_t * ctx)
+{
+	gen_module_t * m;
+	gen_proc_t * p;
+	gen_label_t * l;
+
+	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	l = GC_MALLOC(sizeof *l);
+	memset(l, 0, sizeof *l);
+
+	l -> id = jvm_new_label_id(p);
+	return l;
 }
 
 void
-oberon_generate_call_proc(oberon_context_t * ctx, oberon_expr_t * desig)
+oberon_generate_label(oberon_context_t * ctx, gen_label_t * l)
 {
-	printf("call proc\n");
+	gen_module_t * m;
+	gen_proc_t * p;
+
+	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	jvm_generate_label(p, l -> id);
 }
 
 void
-oberon_generate_end_proc(oberon_context_t * ctx)
+oberon_generate_goto(oberon_context_t * ctx, gen_label_t * l)
 {
 	gen_module_t * m;
+	gen_proc_t * p;
+
 	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	jvm_generate(p, 0, 0, "goto L%i", l -> id);
+}
+
+void
+oberon_generate_branch(oberon_context_t * ctx, oberon_expr_t * cond, bool gotoif, gen_label_t * l)
+{
+	gen_module_t * m;
+	gen_proc_t * p;
+
+	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	push_expr(p, cond);
 
-	fprintf(m -> fp, "  .limit stack 32\n");
-	fprintf(m -> fp, "  .limit locals 32\n");
-	fprintf(m -> fp, ".end method\n\n");
+	if(gotoif == false)
+	{
+		/* переход если false */
+		jvm_generate(p, 1, 0, "ifeq L%i", l -> id);
+	}
+	else
+	{
+		/* переход если true */
+		jvm_generate(p, 1, 0, "ifne L%i", l -> id);
+	}
+}
+
+static void
+push_varptr(gen_proc_t * p, oberon_expr_t * expr)
+{
+	assert(expr -> is_item);
+
+	switch(expr -> item.mode)
+	{
+		case MODE_VAR:
+			jvm_generate_ldst_prepare(p, expr -> item.var -> gen_var);
+			break;
+		case MODE_INDEX:
+			push_item(p, expr -> item.parent);
+			push_expr(p, expr -> item.args);
+			check_index(p, expr -> item.args -> result);
+			break;
+		case MODE_FIELD:
+			push_item(p, expr -> item.parent);
+			jvm_generate_ldst_prepare(p, expr -> item.var -> gen_var);
+			break;
+		case MODE_DEREF:
+			push_varptr(p, (oberon_expr_t *) expr -> item.parent);
+			break;
+		default:
+			gen_error("push_varptr: wat %i", expr -> item.mode);
+			break;
+	}
+}
+
+static void
+jvm_generate_call_proc(gen_proc_t * p, oberon_item_t * desig)
+{
+	assert(desig -> var == NULL);
+	assert(desig -> mode == MODE_CALL);
+
+	bool direct_call = false;
+	if(desig -> parent -> mode == MODE_VAR)
+	{
+		if(desig -> parent -> var -> class == OBERON_CLASS_PROC)
+		{
+			direct_call = true;
+		}
+	}
+
+	oberon_type_t * procsig;
+	procsig = desig -> parent -> result;
+
+	if(direct_call == false)
+	{
+		/* Загружаем указатель на процедуру */
+		push_item(p, desig -> parent);
+	}
+
+	if(direct_call)
+	{
+		jvm_generate_push_static_links(p, desig -> parent -> var);
+	}
+
+	int args_cells = 0;
+	int result_cells = jvm_cell_size_for_type(procsig -> base);
+
+	int num = desig -> num_args;
+	oberon_expr_t * arg = desig -> args;
+	oberon_object_t * param = procsig -> decl;
+	for(int i = 0; i < num; i++)
+	{
+		if(param -> class == OBERON_CLASS_VAR_PARAM)
+		{
+			args_cells += 2;
+			push_varptr(p, arg);
+		}
+		else
+		{
+			args_cells += jvm_cell_size_for_type(arg -> result);
+			push_expr(p, arg);
+		}
+		arg = arg -> next;
+		param = param -> next;
+	}
+
+	if(direct_call)
+	{
+		char * full_name = jvm_get_field_full_name(desig -> parent -> var);
+		char * signature = jvm_get_local_procedure_signature(desig -> parent -> var);
+		jvm_generate(p, args_cells, result_cells, "invokestatic %s%s", full_name, signature);
+	}
+	else
+	{
+		char * cname = jvm_get_class_full_name(procsig);
+		char * signature = jvm_get_procedure_signature(procsig);
+		jvm_generate(p, 1 + args_cells, result_cells, "invokevirtual %s/invoke%s", cname, signature);
+	}
+}
+
+void
+oberon_generate_call_proc(oberon_context_t * ctx, oberon_expr_t * desig)
+{
+	assert(desig -> is_item);
+	jvm_generate_call_proc(ctx -> mod -> gen_mod -> class -> p, (oberon_item_t *) desig);
 }
 
 void
 oberon_generate_return(oberon_context_t * ctx, oberon_expr_t * expr)
 {
 	gen_module_t * m;
+	gen_proc_t * p;
+	char prefix;
+	int cell_size;
 
 	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
 
 	if(expr)
 	{
-		oberon_error(ctx, "oberon_generate_return: TODO return expr");
+		push_expr(p, expr);
+		prefix = jvm_get_prefix(expr -> result);
+		cell_size = jvm_cell_size_for_type(expr -> result);
+		jvm_generate(p, cell_size, 0, "%creturn", prefix);
 	}
 	else
 	{
-		fprintf(m -> fp, "  return\n");
+		jvm_generate(p, 0, 0, "return");
 	}
 }
 
 static void
-push_int(FILE * fp, long i)
+jvm_generate_expr_new_pointer(gen_proc_t * p, oberon_type_t * type, int num, oberon_expr_t * arg)
 {
-	if(i == -1)
-	{
-		fprintf(fp, "iconst_m1\n");
-	}
-	else if(i >= 0 && i <= 5)
-	{
-		fprintf(fp, "iconst_%li\n", i);
-	}
-	else if(i >= -128 && i <= 127)
-	{
-		fprintf(fp, "bipush %li\n", i);
-	}
-	else if(i >= -32768 && i <= 32767)
+	assert(type -> class == OBERON_TYPE_POINTER);
+
+	for(int i = 0; i < num; i++)
 	{
-		fprintf(fp, "sipush %li\n", i);		
+		push_expr(p, arg);
+		check_index(p, arg -> result);
+		arg = arg -> next;
 	}
-	else if(i >= -2147483648 && i <= 2147483647)
+
+	jvm_generate_new(p, type -> base, num);
+}
+
+static void
+push_item(gen_proc_t * p, oberon_item_t * item)
+{
+	switch(item -> mode)
 	{
-		fprintf(fp, "ldc %li\n", i);
+		case MODE_VAR:
+			if(item -> var -> class == OBERON_CLASS_PROC)
+			{
+				jvm_generate_push_procedure_pointer(p, item -> var);
+			}
+			else
+			{
+				jvm_generate_load(p, item -> var -> gen_var);
+			}
+			break;
+		case MODE_INTEGER:
+		case MODE_BOOLEAN:
+		case MODE_CHAR:
+		case MODE_SET:
+			jvm_generate_push_int_size(p, item -> integer, item -> result -> size);
+			break;
+		case MODE_CALL:
+			jvm_generate_call_proc(p, item);
+			break;
+		case MODE_INDEX:
+			;
+			char postfix = jvm_get_postfix(item -> result);
+			int cell_size = jvm_cell_size_for_postfix(postfix);
+			push_item(p, item -> parent);
+			push_expr(p, item -> args);
+			check_index(p, item -> args -> result);
+			jvm_generate(p, 1 + 1, cell_size, "%caload", postfix);
+			break;
+		case MODE_FIELD:
+			push_item(p, item -> parent);
+			jvm_generate_load(p, item -> var -> gen_var);
+			break;
+		case MODE_DEREF:
+			/* Все объекты в jvm представляются как указатели */
+			push_item(p, item -> parent);
+			break;
+		case MODE_NIL:
+			jvm_generate(p, 0, 1, "aconst_null");
+			break;
+		case MODE_NEW:
+			jvm_generate_expr_new_pointer(p, item -> result, item -> num_args, item -> args);
+			break;
+		case MODE_REAL:
+			jvm_generate_push_float(p, item -> real, item -> result -> size);
+			break;
+		case MODE_STRING:
+			jvm_generate_push_string(p, item -> string, item -> result -> size);
+			break;
+		case MODE_LEN:
+			push_item(p, item -> parent);
+			jvm_generate_array_len(p, item -> integer);
+			jvm_generate_cast_prefix(p, 'i', jvm_get_postfix(item -> result));
+			break;
+		case MODE_AS:
+			push_item(p, item -> parent);
+			jvm_generate_cast_type(p, item -> parent -> result, item -> result);
+			break;
+		default:
+			gen_error("push_item: unk mode %i", item -> mode);
+			break;
 	}
-	else
+}
+
+static void
+jvm_generate_logical_not(gen_proc_t * p)
+{
+	int label_done = jvm_new_label_id(p);
+	int label_false = jvm_new_label_id(p);
+
+	jvm_generate(p, 1, 0, "ifne L%i", label_false);
+	jvm_generate(p, 0, 1, "iconst_1");
+	jvm_generate(p, 0, 0, "goto L%i", label_done);
+	jvm_generate_label(p, label_false);
+	jvm_generate(p, 0, 1, "iconst_0");
+	jvm_generate_label(p, label_done);
+}
+
+static void
+jvm_generate_abs(gen_proc_t * p, char prefix)
+{
+	char t = jvm_get_type_of_prefix(prefix);
+	int cell_size = jvm_cell_size_for_postfix(prefix);
+	jvm_generate(p, cell_size, cell_size, "invokestatic java/lang/Math/abs(%c)%c", t, t);
+}
+
+static char *
+jvm_get_compare_postfix(int op)
+{
+	char * cmpop = "";
+	switch(op)
 	{
-		fprintf(fp, "ldc2 %li\n", i);
+		case OP_EQ:
+			cmpop = "eq";
+			break;
+		case OP_NEQ:
+			cmpop = "ne";
+			break;
+		case OP_LSS:
+			cmpop = "lt";
+			break;
+		case OP_LEQ:
+			cmpop = "le";
+			break;
+		case OP_GRT:
+			cmpop = "gt";
+			break;
+		case OP_GEQ:
+			cmpop = "ge";
+			break;
+		default:
+			gen_error("jvm_generate_compare_op: wat");
+			break;
 	}
+	return cmpop;
 }
 
 static void
-push_float(FILE * fp, double f, int size)
+jvm_generate_compare_op(gen_proc_t * p, oberon_type_t * t, int op)
 {
-	if(size <= 4)
+	char prefix = jvm_get_prefix(t);
+	int label_true = jvm_new_label_id(p);
+	int label_done = jvm_new_label_id(p);
+	int cell_size = jvm_cell_size_for_type(t);
+	char * cmpop = jvm_get_compare_postfix(op);
+
+	if(prefix == 'l')
 	{
-		if(f == 0.0)
-		{
-			fprintf(fp, "fconst_0\n");
-		}
-		if(f == 1.0)
-		{
-			fprintf(fp, "fconst_1\n");
-		}
-		if(f == 2.0)
+		jvm_generate(p, 2 * cell_size, 1, "lcmp");
+		jvm_generate(p, 1, 1, "if%s L%i", cmpop, label_true);
+	}
+	else if(prefix == 'f' || prefix == 'd')
+	{
+		char fop;
+		if(op == OP_EQ || op == OP_NEQ || op == OP_GRT || op == OP_GEQ)
 		{
-			fprintf(fp, "fconst_2\n");
+			fop = 'l';
 		}
 		else
 		{
-			fprintf(fp, "ldc %lf\n", f);
+			fop = 'g';
 		}
+		jvm_generate(p, 2 * cell_size, 1, "%ccmp%c", prefix, fop);
+		jvm_generate(p, 1, 1, "if%s L%i", cmpop, label_true);
 	}
-	else
+	else if(prefix == 'a')
 	{
-		if(f == 0.0)
-		{
-			fprintf(fp, "dconst_0\n");
-		}
-		if(f == 1.0)
+		if(oberon_is_array_of_char_type(t) || oberon_is_string_type(t))
 		{
-			fprintf(fp, "dconst_1\n");
+			jvm_generate(p, 2, 1, "invokestatic SYSTEM/STRCMP([B[B)I");
+			jvm_generate(p, 1, 0, "if%s L%i", cmpop, label_true);
 		}
 		else
 		{
-			fprintf(fp, "ldc2 %lf\n", f);
+			jvm_generate(p, 1, 0, "if_acmp%s L%i", cmpop, label_true);
 		}
 	}
-}
-
-static void push_expr(oberon_context_t * ctx, FILE * fp, oberon_expr_t * expr);
-
-static void
-push_var(oberon_context_t * ctx, FILE * fp, oberon_object_t * var)
-{
-	if(var -> local)
-	{
-		int reg = var -> gen_var -> reg;
-		char prefix = get_prefix(ctx, var -> type);
-		fprintf(fp, "%cload %i\n", prefix, reg);
-	}
 	else
 	{
-		char * fullname = get_field_full_name(ctx, var);
-		char * desc = get_descriptor(ctx, var -> type);
-		fprintf(fp, "getstatic %s %s\n", fullname, desc);
+		jvm_generate(p, 2 * cell_size, 0, "if_%ccmp%s L%i", prefix, cmpop, label_true);
 	}
+
+	jvm_generate(p, 0, 1, "iconst_0");
+	jvm_generate(p, 0, 0, "goto L%i", label_done);
+	jvm_generate_label(p, label_true);
+	jvm_generate(p, 0, 1, "iconst_1");
+	jvm_generate_label(p, label_done);
 }
 
 static void
-push_item(oberon_context_t * ctx, FILE * fp, oberon_item_t * item)
+jvm_generate_operator(gen_proc_t * p, oberon_type_t * t, int op)
 {
-	switch(item -> mode)
+	char prefix = jvm_get_prefix(t);
+	int cell_size = jvm_cell_size_for_type(t);
+	switch(op)
 	{
-		case MODE_VAR:
-			push_var(ctx, fp, item -> var);
+		case OP_UNARY_MINUS:
+			jvm_generate(p, cell_size, cell_size, "%cneg", prefix);
 			break;
-		case MODE_INTEGER:
-			push_int(fp, item -> integer);
+		case OP_COMPLEMENTATION:
+			jvm_generate_push_int_size(p, -1, t -> size);
+			jvm_generate(p, 2 * cell_size, cell_size, "%cxor", prefix);
 			break;
-		case MODE_BOOLEAN:
-			push_int(fp, item -> boolean);
+		case OP_LOGIC_NOT:
+			jvm_generate_logical_not(p);
 			break;
-		case MODE_CALL:
-			oberon_error(ctx, "push_item: TODO call");
+		case OP_ABS:
+			jvm_generate_abs(p, prefix);
 			break;
-		case MODE_INDEX:
-			oberon_error(ctx, "push_item: TODO index");
+		case OP_CAP:
+			jvm_generate(p, cell_size, cell_size, "invokestatic java/lang/Character/toUpperCase(I)I");
 			break;
-		case MODE_FIELD:
-			oberon_error(ctx, "push_item: TODO field");
+
+		case OP_ADD:
+			jvm_generate(p, 2 * cell_size, cell_size, "%cadd", prefix);
 			break;
-		case MODE_DEREF:
-			oberon_error(ctx, "push_item: TODO deref");
+		case OP_SUB:
+			jvm_generate(p, 2 * cell_size, cell_size, "%csub", prefix);
 			break;
-		case MODE_NIL:
-			fprintf(fp, "aconst_null\n");
+		case OP_MUL:
+			jvm_generate(p, 2 * cell_size, cell_size, "%cmul", prefix);
 			break;
-		case MODE_NEW:
-			oberon_error(ctx, "push_item: TODO new");
+		case OP_DIV:
+			jvm_generate(p, 2 * cell_size, cell_size, "%cdiv", prefix);
 			break;
-		case MODE_REAL:
-			push_float(fp, item -> real, item -> result -> size);
+		case OP_MOD:
+			jvm_generate(p, 2 * cell_size, cell_size, "%crem", prefix);
+			break;
+		case OP_UNION:
+			jvm_generate(p, 2 * cell_size, cell_size, "%cor", prefix);
+			break;
+		case OP_INTERSECTION:
+			jvm_generate(p, 2 * cell_size, cell_size, "%cand", prefix);
+			break;
+		case OP_DIFFERENCE:
+			/* (a - b) == a & ~b */
+			jvm_generate_push_int_size(p, -1, t -> size);
+			jvm_generate(p, 2 * cell_size, cell_size, "%cxor", prefix);
+			jvm_generate(p, 2 * cell_size, cell_size, "%cand", prefix);
+			break;
+		case OP_SYM_DIFFERENCE:
+			jvm_generate(p, 2 * cell_size, cell_size, "%cxor", prefix);
+			break;
+
+		case OP_EQ:
+		case OP_NEQ:
+		case OP_LSS:
+		case OP_LEQ:
+		case OP_GRT:
+		case OP_GEQ:
+			jvm_generate_compare_op(p, t, op);
 			break;
 		default:
-			oberon_error(ctx, "push_item: unk mode %i", item -> mode);
+			gen_error("jvm_generate_operator: unk op %i", op);
+			break;
+	}	
+}
+
+static void
+jvm_generate_logical_or(gen_proc_t * p, oberon_expr_t * a, oberon_expr_t * b)
+{
+	int label_calc_b = jvm_new_label_id(p);
+	int label_done = jvm_new_label_id(p);
+
+	/* a OR b -- если a, то TRUE, иначе b */
+
+	push_expr(p, a);
+	jvm_generate(p, 1, 0, "ifeq L%i", label_calc_b);
+	jvm_generate(p, 0, 1, "iconst_1");
+	jvm_generate(p, 0, 0, "goto L%i", label_done);
+	jvm_generate_label(p, label_calc_b);
+	push_expr(p, b);
+	jvm_generate_label(p, label_done);
+}
+
+static void
+jvm_generate_logical_and(gen_proc_t * p, oberon_expr_t * a, oberon_expr_t * b)
+{
+	int label_false = jvm_new_label_id(p);
+	int label_done = jvm_new_label_id(p);
+
+	/* a AND b -- если a, то b, иначе FALSE */
+
+	push_expr(p, a);
+	jvm_generate(p, 1, 0, "ifeq L%i", label_false);
+	push_expr(p, b);
+	jvm_generate(p, 0, 0, "goto L%i", label_done);
+	jvm_generate_label(p, label_false);
+	jvm_generate(p, 0, 1, "iconst_0");
+	jvm_generate_label(p, label_done);
+}
+
+static void
+jvm_generate_range(gen_proc_t * p, oberon_expr_t * a, oberon_expr_t * b)
+{
+	/* { a } == 1 << a */
+	/* { a..b } == (a <= b) ? ((2 << b) - (1 << a)) : (0); */
+
+	char prefix;
+	int cell_size;
+	oberon_type_t * type;
+	gen_var_t * ra;
+	gen_var_t * rb;
+	int label_else;
+	int label_end;
+
+	type = a -> result;
+	cell_size = jvm_cell_size_for_type(type);
+	prefix = jvm_get_prefix(type);
+
+	if(b == NULL)
+	{
+		jvm_generate_push_int_size(p, 1, type -> size);
+		push_expr(p, a);
+		jvm_generate(p, 2 * cell_size, cell_size, "%cshl", prefix);
+	}
+	else
+	{
+		ra = jvm_create_function_temp_var(p, type -> gen_type);
+		rb = jvm_create_function_temp_var(p, type -> gen_type);
+		jvm_generate_var(ra);
+		jvm_generate_var(rb);
+		jvm_generate_var_initialization(p, ra);
+		jvm_generate_var_initialization(p, rb);
+		label_else = jvm_new_label_id(p);
+		label_end = jvm_new_label_id(p);
+
+		push_expr(p, a);
+		jvm_generate_store(p, ra);
+		push_expr(p, b);
+		jvm_generate_store(p, rb);
+
+		jvm_generate_load(p, ra);
+		jvm_generate_load(p, rb);
+		jvm_generate(p, 2 * cell_size, 0, "if_%ccmpgt L%i", prefix, label_else);
+
+		jvm_generate_push_int_size(p, 2, type -> size);
+		jvm_generate_load(p, rb);
+		jvm_generate(p, 2 * cell_size, cell_size, "%cshl", prefix);
+		jvm_generate_push_int_size(p, 2, type -> size);
+		jvm_generate_load(p, ra);
+		jvm_generate(p, 2 * cell_size, cell_size, "%cshl", prefix);
+		jvm_generate(p, 2 * cell_size, cell_size, "%csub", prefix);
+		jvm_generate(p, 0, 0, "goto L%i", label_end);
+
+		jvm_generate_label(p, label_else);
+		jvm_generate_push_int_size(p, 0, type -> size);
+		jvm_generate_label(p, label_end);
+	}
+
+	/* TODO free registers */
+}
+
+static void
+jvm_generate_in(gen_proc_t * p, oberon_expr_t * a, oberon_expr_t * b)
+{
+	oberon_type_t * t = a -> result;
+	int cell_size = jvm_cell_size_for_type(t);
+	char prefix = jvm_get_prefix(t);
+	int label_else = jvm_new_label_id(p);
+	int label_end = jvm_new_label_id(p);
+
+	/* (a IN b) == (1 << a) & b */
+	jvm_generate_push_int_size(p, 1, t -> size);
+	push_expr(p, a);
+	jvm_generate(p, 2 * cell_size, cell_size, "%cshl", prefix);
+	push_expr(p, b);	
+	jvm_generate(p, 2 * cell_size, cell_size, "%cand", prefix);
+
+	if(cell_size > 1)
+	{
+		jvm_generate(p, cell_size, 0, "lcmp");
+	}
+
+	jvm_generate(p, 1, 0, "ifeq L%i", label_else);
+	jvm_generate(p, 0, 1, "iconst_1");
+	jvm_generate(p, 0, 0, "goto L%i", label_end);
+	jvm_generate_label(p, label_else);
+	jvm_generate(p, 0, 1, "iconst_0");	
+	jvm_generate_label(p, label_end);
+}
+
+static void
+jvm_generate_shift(gen_proc_t * p, int op, oberon_expr_t * a, oberon_expr_t * b)
+{
+	oberon_type_t * t = a -> result;
+	int cell_size = jvm_cell_size_for_type(t);
+	char prefix = jvm_get_prefix(t);
+	char dt = jvm_get_type_of_prefix(prefix);
+
+	push_expr(p, a);
+	jvm_generate_cast_type(p, a -> result, t);
+	push_expr(p, b);
+	jvm_generate_cast_type(p, b -> result, t);
+
+	char * opname;
+	switch(op)
+	{
+		case OP_ASH:
+			opname = "ASH";
 			break;
+		case OP_LSH:
+			opname = "LSH";
+			break;
+		case OP_ROT:
+			opname = "ROT";
+			break;
+		default:
+			gen_error("jvm_generate_shift: invalid op %i", op);
 	}
+
+	jvm_generate(p, 2 * cell_size, cell_size, "invokestatic SYSTEM/%s(%c%c)%c", opname, dt, dt, dt);
 }
 
 static void
-push_operator(oberon_context_t * ctx, FILE * fp, oberon_oper_t * oper)
+jvm_generate_entier(gen_proc_t * p, oberon_expr_t * x, oberon_type_t * res)
 {
-	char prefix = get_prefix(ctx, oper -> result);
-	switch(oper -> op)
+	char prefix = jvm_get_prefix(x -> result);
+	char postfix = jvm_get_postfix(res);
+
+	push_expr(p, x);
+	jvm_generate_cast_prefix(p, prefix, 'd');
+	jvm_generate(p, 2, 2, "invokestatic java/lang/Math/floor(D)D");
+	jvm_generate_cast_prefix(p, 'd', postfix);
+}
+
+static void
+push_operator(gen_proc_t * p, oberon_oper_t * oper)
+{
+	oberon_type_t * preq = oper -> left -> result;
+	int op = oper -> op;
+	switch(op)
 	{
+		case OP_CAST:
+			push_expr(p, oper -> left);
+			jvm_generate_cast_type(p, oper -> left -> result, oper -> result);
+			break;
+		case OP_HARDCAST:
+			push_expr(p, oper -> left);
+			jvm_generate_hard_cast_type(p, oper -> left -> result, oper -> result);
+			break;
+		case OP_COMPLEMENTATION:
 		case OP_UNARY_MINUS:
-			push_expr(ctx, fp, oper -> left);
-			fprintf(fp, "%cneg\n", prefix);
+		case OP_LOGIC_NOT:
+		case OP_ABS:
+		case OP_CAP:
+			push_expr(p, oper -> left);
+			jvm_generate_operator(p, preq, op);
 			break;
-		case OP_BITWISE_NOT:
-			push_expr(ctx, fp, oper -> left);
-			push_int(fp, -1);
-			fprintf(fp, "%cxor\n", prefix);
+		case OP_ENTIER:
+			jvm_generate_entier(p, oper -> left, oper -> result);
 			break;
 
 		case OP_ADD:
-			push_expr(ctx, fp, oper -> left);
-			push_expr(ctx, fp, oper -> right);
-			fprintf(fp, "%cadd\n", prefix);
-			break;
 		case OP_SUB:
-			push_expr(ctx, fp, oper -> left);
-			push_expr(ctx, fp, oper -> right);
-			fprintf(fp, "%csub\n", prefix);
-			break;
 		case OP_MUL:
-			push_expr(ctx, fp, oper -> left);
-			push_expr(ctx, fp, oper -> right);
-			fprintf(fp, "%cmul\n", prefix);
-			break;
 		case OP_DIV:
-			push_expr(ctx, fp, oper -> left);
-			push_expr(ctx, fp, oper -> right);
-			fprintf(fp, "%cdiv\n", prefix);
-			break;
 		case OP_MOD:
-			push_expr(ctx, fp, oper -> left);
-			push_expr(ctx, fp, oper -> right);
-			fprintf(fp, "%crem\n", prefix);
-			break;
-		case OP_BITWISE_AND:
-			push_expr(ctx, fp, oper -> left);
-			push_expr(ctx, fp, oper -> right);
-			fprintf(fp, "%cand\n", prefix);
-			break;
-		case OP_BITWISE_XOR:
-			push_expr(ctx, fp, oper -> left);
-			push_expr(ctx, fp, oper -> right);
-			fprintf(fp, "%cxor\n", prefix);
-			break;
-		case OP_BITWISE_OR:
-			push_expr(ctx, fp, oper -> left);
-			push_expr(ctx, fp, oper -> right);
-			fprintf(fp, "%cor\n", prefix);
-			break;
+
+		case OP_UNION:
+		case OP_INTERSECTION:
+		case OP_DIFFERENCE:
+		case OP_SYM_DIFFERENCE:
 
 		case OP_EQ:
 		case OP_NEQ:
@@ -655,54 +1788,102 @@ push_operator(oberon_context_t * ctx, FILE * fp, oberon_oper_t * oper)
 		case OP_LEQ:
 		case OP_GRT:
 		case OP_GEQ:
-		case OP_LOGIC_NOT:
-		case OP_ABS:
-			oberon_error(ctx, "push_oper: TODO op %i", oper -> op);
+			push_expr(p, oper -> left);
+			push_expr(p, oper -> right);
+			jvm_generate_operator(p, preq, op);
+			break;
+
+		case OP_LOGIC_OR:
+			jvm_generate_logical_or(p, oper -> left, oper -> right);
+			break;
+		case OP_LOGIC_AND:
+			jvm_generate_logical_and(p, oper -> left, oper -> right);
+			break;
+
+		case OP_IS:
+			preq = oper -> right -> result;
+			char * cname = jvm_get_class_full_name(preq);
+			push_expr(p, oper -> left);
+			jvm_generate(p, 1, 1, "instanceof %s", cname);
+			break;
+		case OP_RANGE:
+			jvm_generate_range(p, oper -> left, oper -> right);
+			break;
+		case OP_IN:
+			jvm_generate_in(p, oper -> left, oper -> right);
+			break;
+
+		case OP_ASH:
+		case OP_LSH:
+		case OP_ROT:
+			jvm_generate_shift(p, op, oper -> left, oper -> right);
 			break;
 		default:
-			oberon_error(ctx, "push_oper: unk op %i", oper -> op);
+			gen_error("push_oper: unk op %i", op);
 			break;
 	}
 }
 
 static void
-push_expr(oberon_context_t * ctx, FILE * fp, oberon_expr_t * expr)
+push_expr(gen_proc_t * p, oberon_expr_t * expr)
 {
 	if(expr -> is_item)
 	{
-		push_item(ctx, fp, (oberon_item_t *) expr);
+		push_item(p, (oberon_item_t *) expr);
 	}
 	else
 	{
-		push_operator(ctx, fp, (oberon_oper_t *) expr);
+		push_operator(p, (oberon_oper_t *) expr);
 	}
 }
 
 static void
-store_expr(oberon_context_t * ctx, FILE * fp, oberon_expr_t * expr)
+store_expr(gen_proc_t * p, oberon_expr_t * dst, oberon_expr_t * src)
 {
-	assert(expr -> is_item);
-	oberon_item_t * item = (oberon_item_t *) expr;
+	assert(dst -> is_item);
+	oberon_item_t * item = (oberon_item_t *) dst;
 
-	char prefix;
-	switch(item -> mode)
+	if(dst -> result -> class == OBERON_TYPE_ARRAY
+		|| src -> result -> class == OBERON_TYPE_ARRAY)
+	{
+		push_expr(p, dst);
+		push_expr(p, src);
+		jvm_generate_copy_array(p, dst -> result);
+	}
+	else if(dst -> result -> class == OBERON_TYPE_RECORD
+		|| src -> result -> class == OBERON_TYPE_RECORD)
+	{
+		push_expr(p, dst);
+		push_expr(p, src);
+		jvm_generate_copy_record(p, dst -> result);
+	}
+	else switch(item -> mode)
 	{
 		case MODE_VAR:
-			if(item -> var -> local)
-			{
-				int reg = item -> var -> gen_var -> reg;
-				prefix = get_prefix(ctx, item -> result);
-				fprintf(fp, "%cstore %i\n", prefix, reg);
-			}
-			else
-			{
-				char * fullname = get_field_full_name(ctx, item -> var);
-				char * desc = get_descriptor(ctx, item -> result);
-				fprintf(fp, "putstatic %s %s\n", fullname, desc);
-			}
+			jvm_generate_ldst_prepare(p, item -> var -> gen_var);
+			push_expr(p, src);
+			jvm_generate_store(p, item -> var -> gen_var);
+			break;
+		case MODE_INDEX:
+			;
+			char postfix = jvm_get_postfix(src -> result);
+			int cell_size = jvm_cell_size_for_postfix(postfix);
+			assert(item -> parent -> is_item);
+			push_item(p, (oberon_item_t *) item -> parent);
+			push_expr(p, item -> args);
+			check_index(p, item -> args -> result);
+			push_expr(p, src);
+			jvm_generate(p, 1 + 1 + cell_size, 0, "%castore", postfix);
+			break;
+		case MODE_FIELD:
+			assert(item -> parent -> is_item);
+			push_item(p, (oberon_item_t *) item -> parent);
+			jvm_generate_ldst_prepare(p, item -> var -> gen_var);
+			push_expr(p, src);
+			jvm_generate_store(p, item -> var -> gen_var);
 			break;
 		default:
-			oberon_error(ctx, "store_expr: unk mode %i", item -> mode);
+			gen_error("store_expr: unk mode %i", item -> mode);
 			break;
 	}
 }
@@ -711,34 +1892,117 @@ void
 oberon_generate_assign(oberon_context_t * ctx, oberon_expr_t * src, oberon_expr_t * dst)
 {
 	gen_module_t * m;
+	gen_proc_t * p;
+
+	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	store_expr(p, dst, src);
+}
+
+void
+oberon_generate_copy(oberon_context_t * ctx, oberon_expr_t * src, oberon_expr_t * dst)
+{
+	gen_module_t * m;
+	gen_proc_t * p;
+	char * desc;
+
+	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	push_expr(p, src);
+	push_expr(p, dst);
+
+	desc = jvm_get_descriptor(dst -> result);
+
+	jvm_generate(p, 2, 0, "invokestatic SYSTEM/COPY(%s%s)V", desc, desc);
+}
+
+void
+oberon_generate_assert(oberon_context_t * ctx, oberon_expr_t * cond)
+{
+	gen_module_t * m;
+	gen_proc_t * p;
+
+	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	push_expr(p, cond);
+	jvm_generate(p, 1, 0, "invokestatic SYSTEM/ASSERT(Z)V");
+}
+
+void
+oberon_generate_assert_n(oberon_context_t * ctx, oberon_expr_t * cond, int64_t n)
+{
+	gen_module_t * m;
+	gen_proc_t * p;
+
+	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	push_expr(p, cond);
+	jvm_generate_push_int_size(p, n, 8);
+	jvm_generate(p, 1 + 2, 0, "invokestatic SYSTEM/ASSERT(ZJ)V");
+}
+
+void
+oberon_generate_trap(oberon_context_t * ctx, int64_t n)
+{
+	gen_module_t * m;
+	gen_proc_t * p;
+
 	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
 
-	push_expr(ctx, m -> fp, src);
-	store_expr(ctx, m -> fp, dst);
+	jvm_generate_push_int_size(p, n, 8);
+	jvm_generate(p, 2, 0, "invokestatic SYSTEM/TRAP(J)V");
 }
 
 void
-oberon_generate_code(oberon_context_t * ctx)
+oberon_generate_halt(oberon_context_t * ctx, int64_t n)
 {
-	printf("generate code\n");
+	gen_module_t * m;
+	gen_proc_t * p;
+
+	m = ctx -> mod -> gen_mod;
+	p = m -> class -> p;
+
+	jvm_generate_push_int_size(p, n, 8);
+	jvm_generate(p, 2, 0, "invokestatic SYSTEM/HALT(J)V");
 }
 
 void
-oberon_generator_dump(oberon_context_t * ctx, char * path)
+oberon_set_out_directory(oberon_context_t * ctx, const char * path)
 {
-	printf("jit: dump code\n");
+	gen_context_t * c;
+
+	c = ctx -> gen_context;
+
+	c -> dir = new_string(path);
 }
 
-void *
-oberon_generator_get_procedure(oberon_context_t * ctx, const char * name)
+void
+oberon_set_typecheck(oberon_object_t * var, bool enable)
 {
-	printf("jit: get pointer to procedure %s\n", name);
-	return NULL;
+	var -> gen_var -> typecheck = enable;
+	var -> gen_var -> forcetype = (enable) ? (var -> type -> gen_type) : (NULL);
 }
 
-void *
-oberon_generator_get_var(oberon_context_t * ctx, const char * name)
+void oberon_set_line(oberon_context_t * ctx, int line)
 {
-	printf("jit: get pointer to var %s\n", name);
-	return NULL;
+	gen_module_t * m;
+	gen_proc_t * p;
+
+        m = ctx -> mod -> gen_mod;
+	if(m != NULL)
+	{
+		p = m -> class -> p;
+
+		if(p != NULL)
+		{
+			jvm_generate(p, 0, 0, ".line %i", line);
+		}
+
+		m -> line = line;
+	}
 }