From: DeaDDooMER <deaddoomer@deadsoftware.ru>
Date: Sun, 6 Aug 2017 16:23:41 +0000 (+0300)
Subject: JVM: Реализованы VAR-параметры
X-Git-Url: http://deadsoftware.ru/gitweb?a=commitdiff_plain;h=55d9ee92b95dd306ac80fb643ed21d3b733395d7;p=dsw-obn.git

JVM: Реализованы VAR-параметры
---

diff --git a/src/backends/jvm/generator-jvm-abi.c b/src/backends/jvm/generator-jvm-abi.c
new file mode 100644
index 0000000..ed4a19a
--- /dev/null
+++ b/src/backends/jvm/generator-jvm-abi.c
@@ -0,0 +1,196 @@
+#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 "generator-jvm.h"
+#include "generator-jvm-abi.h"
+#include "generator-jvm-asm.h"
+#include "generator-jvm-basic.h"
+
+/*
+ *   --- Каждый модуль является объектом.
+ *       Импортируемые модули представляются полями.
+ *       Каждая глобальная переменная представляется не статическим полем.
+ *       Каждая процедура представляется не статическим метеодом.
+ *       Процедура инициализации модуля имеет название BEGIN.
+ *       Процедура финализации модуля имеет название END.
+ *         Это позволит сделать динамическую загрузку и выгрузку.
+ *   +++ всем переменным и полям в дескриптор добавляется "["
+ *         Это позволит делать ссылки на переменные в VAR-параметрах.
+ *   --- Каждая процедура снабжается параметром-фреймом.
+ *       Это позволит реализовать локальные процедуры и средства рефлекции над стеком.
+ */ 
+
+void
+jvm_generate_ldst_prepare(gen_proc_t * p, gen_var_t * v)
+{
+	char * full_name = v -> full_name;
+	char * desc = v -> type -> desc;
+
+	switch(v -> storage)
+	{
+		case JVM_STORAGE_REGISTER:
+			break;
+		case JVM_STORAGE_STATIC:
+			jvm_generate(p, 0, 1, "getstatic %s [%s", full_name, desc);
+			jvm_generate(p, 0, 1, "iconst_0");
+			break;
+		case JVM_STORAGE_FIELD:
+			jvm_generate(p, 1, 1, "getfield %s [%s", full_name, desc);
+			jvm_generate(p, 0, 1, "iconst_0");
+			break;
+		case JVM_STORAGE_LOCAL:
+			jvm_generate(p, 0, 1, "aload %i", v -> reg);
+			jvm_generate(p, 0, 1, "iconst_0");
+			break;
+		case JVM_STORAGE_VARPTR:
+			jvm_generate(p, 0, 1, "aload %i", v -> reg);
+			jvm_generate(p, 0, 1, "iload %i", v -> reg + 1);
+			break;
+		default:
+			gen_error("jvm_abi_obn_generate_ldst_prepare: wat %i", v -> storage);
+	}
+}
+
+void
+jvm_generate_load(gen_proc_t * p, gen_var_t * src)
+{
+	char prefix = src -> type -> prefix;
+	int cell_size = src -> type -> cell_size;
+
+	switch(src -> storage)
+	{
+		case JVM_STORAGE_REGISTER:
+			jvm_generate(p, 0, cell_size, "%cload %i", prefix, src -> reg);
+			break;
+		case JVM_STORAGE_STATIC:
+		case JVM_STORAGE_FIELD:
+		case JVM_STORAGE_LOCAL:
+		case JVM_STORAGE_VARPTR:
+			jvm_generate_ldst_prepare(p, src);
+			jvm_generate(p, 1 + 1, cell_size, "%caload", prefix);
+			break;
+		default:
+			gen_error("jvm_generate_load: unknow storage type %i", src -> storage);
+			break;
+	}
+}
+
+void
+jvm_generate_store(gen_proc_t * p, gen_var_t * dst)
+{
+	char prefix = dst -> type -> prefix;
+	int cell_size = dst -> type -> cell_size;
+
+	switch(dst -> storage)
+	{
+		case JVM_STORAGE_REGISTER:
+			jvm_generate(p, cell_size, 0, "%cstore %i", prefix, dst -> reg);
+			break;
+		case JVM_STORAGE_STATIC:
+		case JVM_STORAGE_FIELD:
+		case JVM_STORAGE_LOCAL:
+		case JVM_STORAGE_VARPTR:
+			jvm_generate(p, 1 + 1 + cell_size, 0, "%castore", prefix);
+			break;
+		default:
+			gen_error("jvm_generate_store: unknow storage type %i", dst -> storage);
+			break;
+	}
+}
+
+void
+jvm_generate_and_init_global_var(struct gen_class * class, gen_var_t * v, char * name, gen_type_t * t)
+{
+	assert(class -> p == NULL);
+        fprintf(class -> fp, ".field public static %s [%s\n\n", name, t -> desc);
+
+        v -> storage = JVM_STORAGE_STATIC;
+        v -> full_name = new_string("%s/%s", class -> full_name, name);
+	v -> type = t;
+}
+
+void
+jvm_generate_and_init_field(struct gen_class * class, gen_var_t * v, char * name, gen_type_t * t)
+{
+	assert(class -> p == NULL);
+        fprintf(class -> fp, ".field public %s [%s\n\n", name, t -> desc);
+
+        v -> storage = JVM_STORAGE_FIELD;
+        v -> full_name = new_string("%s/%s", class -> full_name, name);
+	v -> type = t;
+}
+
+void
+jvm_generate_and_init_local_var(gen_proc_t * p, gen_var_t * v, gen_type_t * t)
+{
+	v -> storage = JVM_STORAGE_REGISTER;
+        v -> reg = jvm_alloc_register_untyped(p -> rf, t -> wide);
+	v -> type = t;
+}
+
+void
+jvm_generate_and_init_named_local_var(gen_proc_t * p, gen_var_t * v, char * name, gen_type_t * t)
+{
+	jvm_generate_and_init_local_var(p, v, t);
+        jvm_generate(p, 0, 0, ".var %i is %s %s from start to end", v -> reg, name, t -> desc);
+}
+
+void
+jvm_generate_and_init_var_param(gen_proc_t * p, gen_var_t * v, char * name, gen_type_t * t)
+{
+	v -> storage = JVM_STORAGE_VARPTR;
+        v -> reg = jvm_alloc_register_untyped(p -> rf, true);
+	v -> type = t;
+        jvm_generate(p, 0, 0, ".var %i is %s [%s from start to end", v -> reg, name, t -> desc);
+        jvm_generate(p, 0, 0, ".var %i is __%s_offset I from start to end", v -> reg + 1, name);
+}
+
+void
+jvm_generate_variable_initialization(gen_proc_t * p, gen_var_t * v)
+{
+	if(v -> storage == JVM_STORAGE_STATIC)
+	{
+		jvm_generate(p, 0, 1, "iconst_1");
+		jvm_generate(p, 1, 1, "multianewarray [%s 1", v -> type -> desc);
+		jvm_generate(p, 1, 0, "putstatic %s [%s", v -> full_name, v -> type -> desc);
+	}
+	else if(v -> storage == JVM_STORAGE_FIELD)
+	{
+		jvm_generate(p, 0, 1, "iconst_1");
+		jvm_generate(p, 1, 1, "multianewarray [%s 1", v -> type -> desc);
+		jvm_generate(p, 1, 0, "putfield %s [%s", v -> full_name, v -> type -> desc);
+	}
+}
+
+void
+jvm_generate_param_initialization(gen_proc_t * p, gen_var_t * v)
+{
+	assert(v -> storage == JVM_STORAGE_REGISTER);
+
+	int old_reg = v -> reg;
+	bool wide = v -> type -> wide;
+	int cell_size = v -> type -> cell_size;
+	char prefix = v -> type -> prefix;
+	char * desc = v -> type -> desc;
+
+	v -> storage = JVM_STORAGE_LOCAL;
+        v -> reg = jvm_alloc_register_untyped(p -> rf, wide);
+
+	jvm_generate(p, 0, 1, "iconst_1");
+	jvm_generate(p, 1, 1, "multianewarray [%s 1", desc);
+	jvm_generate(p, 1, 2, "dup");
+	jvm_generate(p, 1, 0, "astore %i", v -> reg);
+
+	jvm_generate(p, 0, 1, "iconst_0");
+	jvm_generate(p, 0, cell_size, "%cload %i", prefix, old_reg);
+	jvm_generate(p, 1 + 1 + cell_size, 0, "%castore", prefix);
+}
diff --git a/src/backends/jvm/generator-jvm-abi.h b/src/backends/jvm/generator-jvm-abi.h
new file mode 100644
index 0000000..01bfefc
--- /dev/null
+++ b/src/backends/jvm/generator-jvm-abi.h
@@ -0,0 +1,29 @@
+void 
+jvm_generate_ldst_prepare(gen_proc_t * p, gen_var_t * v);
+
+void
+jvm_generate_load(gen_proc_t * p, gen_var_t * src);
+
+void
+jvm_generate_store(gen_proc_t * p, gen_var_t * dst);
+
+void
+jvm_generate_and_init_global_var(struct gen_class * class, gen_var_t * v, char * name, gen_type_t * t);
+
+void
+jvm_generate_and_init_field(struct gen_class * class, gen_var_t * v, char * name, gen_type_t * t);
+
+void
+jvm_generate_and_init_local_var(gen_proc_t * p, gen_var_t * v, gen_type_t * t);
+
+void
+jvm_generate_and_init_named_local_var(gen_proc_t * p, gen_var_t * v, char * name, gen_type_t * t);
+
+void
+jvm_generate_and_init_var_param(gen_proc_t * p, gen_var_t * v, char * name, gen_type_t * t);
+
+void
+jvm_generate_variable_initialization(gen_proc_t * p, gen_var_t * v);
+
+void
+jvm_generate_param_initialization(gen_proc_t * p, gen_var_t * v);
diff --git a/src/backends/jvm/generator-jvm-asm.c b/src/backends/jvm/generator-jvm-asm.c
new file mode 100644
index 0000000..50f3af9
--- /dev/null
+++ b/src/backends/jvm/generator-jvm-asm.c
@@ -0,0 +1,302 @@
+#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 "generator-jvm.h"
+#include "generator-jvm-abi.h"
+#include "generator-jvm-asm.h"
+#include "generator-jvm-basic.h"
+
+gen_proc_t *
+jvm_create_proc(struct gen_class * class)
+{
+	gen_proc_t * p = GC_MALLOC(sizeof *p);
+	memset(p, 0, sizeof *p);
+
+	struct gen_register_file * rf = GC_MALLOC(sizeof *rf);
+	memset(rf, 0, sizeof *rf);
+
+	struct gen_stack * stack = GC_MALLOC(sizeof *stack);
+	memset(rf, 0, sizeof *stack);
+
+	p -> rf = rf;
+	p -> stack = stack;
+	p -> class = class;
+	p -> label_id = 0;
+
+	return p;
+}
+
+void
+jvm_generate_function_header(gen_proc_t * p, char * access, char * name, char * signature)
+{
+	struct gen_class * class;
+	class = p -> class;
+
+	/* Делаем процедуру текущей в этом классе */
+	assert(class -> p == NULL);
+	class -> p = p;
+
+	fprintf(class -> fp, ".method %s %s%s\n", access, name, signature);
+	fprintf(class -> fp, "  start:\n");
+}
+
+void
+jvm_generate_function_end(gen_proc_t * p)
+{
+	struct gen_class * class;
+	class = p -> class;
+
+	assert(class -> p);
+	class -> p = NULL;
+
+	int pointer = p -> stack -> pointer;
+	int max_pointer = p -> stack -> max_pointer;
+	int locals = p -> rf -> num_used;
+	int max_locals = p -> rf -> max_used;
+
+	fprintf(class -> fp, "  .limit stack %i \t; current(%i)\n", max_pointer, pointer);
+	fprintf(class -> fp, "  .limit locals %i \t; current(%i)\n", max_locals, locals);
+	fprintf(class -> fp, "  end:\n");
+	fprintf(class -> fp, ".end method\n\n");
+}
+
+struct gen_class *
+jvm_create_class(char * full_name)
+{
+	struct gen_class * class = GC_MALLOC(sizeof *class);
+	memset(class, 0, sizeof *class);
+
+	char * fname = new_string("%s.j", full_name);
+	class -> full_name = new_string(full_name);
+	class -> fp = fopen(fname, "w");
+	assert(class -> fp);
+
+	return class;
+}
+
+void
+jvm_destroy_class(struct gen_class * class)
+{
+	assert(class -> p == NULL);
+	fclose(class -> fp);
+}
+
+void
+jvm_stack_push(gen_proc_t * p, unsigned size)
+{
+	p -> stack -> pointer += size;
+	if(p -> stack -> pointer > p -> stack -> max_pointer)
+	{
+		p -> stack -> max_pointer = p -> stack -> pointer;
+	}
+}
+
+void
+jvm_stack_pop(gen_proc_t * p, unsigned size)
+{
+	p -> stack -> pointer -= size;
+
+	if(p -> stack -> pointer < 0)
+	{
+		printf("WARING: stack pointer %i\n", p -> stack -> pointer);
+	}
+}
+
+void
+jvm_generate(gen_proc_t * p, unsigned get, unsigned push, char * format, ...)
+{
+	va_list ptr;
+	va_start(ptr, format);
+
+	jvm_stack_pop(p, get);
+	fprintf(p -> class -> fp, "  ");
+	vfprintf(p -> class -> fp, format, ptr);
+	jvm_stack_push(p, push);
+	fprintf(p -> class -> fp, " \t ;>>>> %i -- %i : current_stack(%i)\n", get, push, p -> stack -> pointer);
+
+	va_end(ptr);
+}
+
+void
+jvm_generate_comment(gen_proc_t * p, char * format, ...)
+{
+	va_list ptr;
+	va_start(ptr, format);
+
+	fprintf(p -> class -> fp, "  ;;;; ");
+	vfprintf(p -> class -> fp, format, ptr);
+	fprintf(p -> class -> fp, "\n");
+
+	va_end(ptr);
+}
+
+void
+jvm_generate_push_int(gen_proc_t * p, int64_t i)
+{
+	if(i == -1)
+	{
+		jvm_generate(p, 0, 1, "iconst_m1");
+	}
+	else if(i >= 0 && i <= 5)
+	{
+		jvm_generate(p, 0, 1, "iconst_%li", i);
+	}
+	else if(i >= -128 && i <= 127)
+	{
+		jvm_generate(p, 0, 1, "bipush %li", i);
+	}
+	else if(i >= -32768 && i <= 32767)
+	{
+		jvm_generate(p, 0, 1, "sipush %li", i);
+	}
+	else if(i >= -2147483648 && i <= 2147483647)
+	{
+		jvm_generate(p, 0, 1, "ldc %li", i);
+	}
+	else
+	{
+		jvm_generate(p, 0, 2, "ldc2_w %li", i);
+	}
+}
+
+void
+jvm_generate_push_int_size(gen_proc_t * p, int64_t i, int size)
+{
+	int pushed_cell = 1;
+
+	if(i == -1)
+	{
+		jvm_generate(p, 0, 1, "iconst_m1");
+	}
+	else if(i >= 0 && i <= 5)
+	{
+		jvm_generate(p, 0, 1, "iconst_%li", i);
+	}
+	else if(i >= -128 && i <= 127)
+	{
+		jvm_generate(p, 0, 1, "bipush %li", i);
+	}
+	else if(i >= -32768 && i <= 32767)
+	{
+		jvm_generate(p, 0, 1, "sipush %li", i);
+	}
+	else if(i >= -2147483648 && i <= 2147483647)
+	{
+		jvm_generate(p, 0, 1, "ldc %li", i);
+	}
+	else
+	{
+		pushed_cell = 2;
+		jvm_generate(p, 0, 2, "ldc2_w %li", i);
+	}
+
+	assert(size <= 8);
+	if(size > 4 && pushed_cell == 1)
+	{
+		jvm_generate(p, pushed_cell, 2, "i2l");
+	}
+	else if(size <= 4)
+	{
+		if(pushed_cell > 1)
+		{
+			jvm_generate(p, 2, 1, "l2i");
+		}
+
+		if(size == 2)
+		{
+			jvm_generate(p, 1, 1, "i2s");
+		}
+		else if(size == 1)
+		{
+			jvm_generate(p, 1, 1, "i2b");
+		}
+	}
+}
+
+void
+jvm_generate_push_float(gen_proc_t * p, double f, int size)
+{
+	if(size <= 4)
+	{
+		if(f == 0.0)
+		{
+			jvm_generate(p, 0, 1, "fconst_0");
+		}
+		if(f == 1.0)
+		{
+			jvm_generate(p, 0, 1, "fconst_1");
+		}
+		if(f == 2.0)
+		{
+			jvm_generate(p, 0, 1, "fconst_2");
+		}
+		else
+		{
+			jvm_generate(p, 0, 1, "ldc %lf", f);
+		}
+	}
+	else
+	{
+		if(f == 0.0)
+		{
+			jvm_generate(p, 0, 2, "dconst_0");
+		}
+		if(f == 1.0)
+		{
+			jvm_generate(p, 0, 2, "dconst_1");
+		}
+		else
+		{
+			jvm_generate(p, 0, 2, "ldc2_w %lf", f);
+		}
+	}
+}
+
+void
+jvm_generate_push_string(gen_proc_t * p, char * str, int char_size)
+{
+	assert(char_size == 1);
+	int len = strlen(str);
+
+	jvm_generate_push_int(p, len + 1);
+	jvm_generate(p, 1, 1, "newarray byte");
+
+	for(int i = 0; i < len; i++)
+	{
+		jvm_generate(p, 1, 2, "dup");
+		jvm_generate_push_int(p, i);
+		jvm_generate_push_int(p, str[i]);
+		jvm_generate(p, 3, 0, "bastore");
+	}
+}
+
+gen_var_t *
+oberon_generator_new_var()
+{
+	gen_var_t * v = GC_MALLOC(sizeof *v);
+	memset(v, 0, sizeof *v);
+	return v;	
+}
+
+int
+jvm_new_label_id(gen_proc_t * p)
+{
+	int label_id = p -> label_id;
+	p -> label_id += 1;
+	return label_id;
+}
+
+void
+jvm_generate_label(gen_proc_t * p, int label_id)
+{
+	jvm_generate(p, 0, 0, "L%i:", label_id);
+}
diff --git a/src/backends/jvm/generator-jvm-asm.h b/src/backends/jvm/generator-jvm-asm.h
new file mode 100644
index 0000000..da287a0
--- /dev/null
+++ b/src/backends/jvm/generator-jvm-asm.h
@@ -0,0 +1,53 @@
+struct gen_class *
+jvm_create_class(char * full_name);
+
+void
+jvm_destroy_class(struct gen_class * class);
+
+gen_proc_t *
+jvm_create_proc(struct gen_class * class);
+
+gen_var_t *
+oberon_generator_new_var();
+
+
+
+void
+jvm_generate_function_header(gen_proc_t * p, char * access, char * name, char * signature);
+
+void
+jvm_generate_function_end(gen_proc_t * p);
+
+int
+jvm_new_label_id(gen_proc_t * p);
+
+void
+jvm_generate_label(gen_proc_t * p, int label_id);
+
+
+
+void
+jvm_stack_push(gen_proc_t * p, unsigned size);
+
+void
+jvm_stack_pop(gen_proc_t * p, unsigned size);
+
+
+
+void
+jvm_generate(gen_proc_t * p, unsigned get, unsigned push, char * format, ...);
+
+void
+jvm_generate_comment(gen_proc_t * p, char * format, ...);
+
+void
+jvm_generate_push_int(gen_proc_t * p, int64_t i);
+
+void
+jvm_generate_push_int_size(gen_proc_t * p, int64_t i, int size);
+
+void
+jvm_generate_push_float(gen_proc_t * p, double f, int size);
+
+void
+jvm_generate_push_string(gen_proc_t * p, char * str, int char_size);
diff --git a/src/backends/jvm/generator-jvm-basic.c b/src/backends/jvm/generator-jvm-basic.c
index bcd82a2..277940c 100644
--- a/src/backends/jvm/generator-jvm-basic.c
+++ b/src/backends/jvm/generator-jvm-basic.c
@@ -126,6 +126,26 @@ jvm_get_descriptor(oberon_type_t * type)
 			desc = jvm_get_descriptor(type -> base);
 			return new_string("[%s", desc);
 			break;
+		case OBERON_TYPE_STRING:
+			switch(type -> size)
+			{
+				case 1:
+					return new_string("[B");
+					break;
+				case 2:
+					return new_string("[C");
+					break;
+				case 4:
+					return new_string("[I");
+					break;
+				case 8:
+					return new_string("[J");
+					break;
+				default:
+					gen_error("jvm_get_descriptor: unsupported string size %i", type -> size);
+					break;
+			}
+			break;
 		default:
 			gen_error("jvm_get_descriptor: unsupported type class %i", type -> class);
 			break;
@@ -173,13 +193,14 @@ jvm_get_prefix(oberon_type_t * type)
 		case OBERON_TYPE_ARRAY:
 		case OBERON_TYPE_RECORD:
 		case OBERON_TYPE_POINTER:
+		case OBERON_TYPE_STRING:
 			return 'a';
 			break;
 		case OBERON_TYPE_REAL:
 			return (size <= 4) ? ('f') : ('d');
 			break;
 		default:
-			gen_error("jvm_get_prefix: wat");
+			gen_error("jvm_get_prefix: wat %i", type -> class);
 			return '!';
 			break;
 	}
@@ -239,6 +260,7 @@ jvm_get_postfix(oberon_type_t * type)
 		case OBERON_TYPE_ARRAY:
 		case OBERON_TYPE_RECORD:
 		case OBERON_TYPE_POINTER:
+		case OBERON_TYPE_STRING:
 			return 'a';
 			break;
 		case OBERON_TYPE_REAL:
@@ -347,7 +369,14 @@ jvm_get_procedure_signature(oberon_type_t * proc)
 	for(int i = 0; i < num; i++)
 	{
 		desc = jvm_get_descriptor(arg -> type);
-		signature = new_string("%s%s", signature, desc);
+		if(arg -> class == OBERON_CLASS_VAR_PARAM)
+		{
+			signature = new_string("%s[%sI", signature, desc);
+		}
+		else
+		{
+			signature = new_string("%s%s", signature, desc);
+		}
 		arg = arg -> next;
 	}
 
diff --git a/src/backends/jvm/generator-jvm.c b/src/backends/jvm/generator-jvm.c
index a107efc..da8b06b 100644
--- a/src/backends/jvm/generator-jvm.c
+++ b/src/backends/jvm/generator-jvm.c
@@ -11,392 +11,12 @@
 #include "../../../include/oberon.h"
 #include "../../oberon-internals.h"
 #include "generator-jvm.h"
+#include "generator-jvm-abi.h"
+#include "generator-jvm-asm.h"
 #include "generator-jvm-basic.h"
 
-// ==========================================
-// ==========================================
-// ==========================================
-
-gen_proc_t *
-jvm_create_proc(struct gen_class * class)
-{
-	gen_proc_t * p = GC_MALLOC(sizeof *p);
-	memset(p, 0, sizeof *p);
-
-	struct gen_register_file * rf = GC_MALLOC(sizeof *rf);
-	memset(rf, 0, sizeof *rf);
-
-	struct gen_stack * stack = GC_MALLOC(sizeof *stack);
-	memset(rf, 0, sizeof *stack);
-
-	p -> rf = rf;
-	p -> stack = stack;
-	p -> class = class;
-	p -> label_id = 0;
-
-	return p;
-}
-
-void
-jvm_generate_function_header(gen_proc_t * p, char * access, char * name, char * signature)
-{
-	struct gen_class * class;
-	class = p -> class;
-
-	/* Делаем процедуру текущей в этом классе */
-	assert(class -> p == NULL);
-	class -> p = p;
-
-	fprintf(class -> fp, ".method %s %s%s\n", access, name, signature);
-	fprintf(class -> fp, "  start:\n");
-}
-
-void
-jvm_generate_function_end(gen_proc_t * p)
-{
-	struct gen_class * class;
-	class = p -> class;
-
-	assert(class -> p);
-	class -> p = NULL;
-
-	int pointer = p -> stack -> pointer;
-	int max_pointer = p -> stack -> max_pointer;
-	int locals = p -> rf -> num_used;
-	int max_locals = p -> rf -> max_used;
-
-	fprintf(class -> fp, "  .limit stack %i \t; current(%i)\n", max_pointer, pointer);
-	fprintf(class -> fp, "  .limit locals %i \t; current(%i)\n", max_locals, locals);
-	fprintf(class -> fp, "  end:\n");
-	fprintf(class -> fp, ".end method\n\n");
-}
-
-struct gen_class *
-jvm_create_class(char * full_name)
-{
-	struct gen_class * class = GC_MALLOC(sizeof *class);
-	memset(class, 0, sizeof *class);
-
-	char * fname = new_string("%s.j", full_name);
-	class -> full_name = new_string(full_name);
-	class -> fp = fopen(fname, "w");
-	assert(class -> fp);
-
-	return class;
-}
-
-static void
-jvm_destroy_class(struct gen_class * class)
-{
-	assert(class -> p == NULL);
-	fclose(class -> fp);
-}
-
-static void
-jvm_stack_push(gen_proc_t * p, unsigned size)
-{
-	p -> stack -> pointer += size;
-	if(p -> stack -> pointer > p -> stack -> max_pointer)
-	{
-		p -> stack -> max_pointer = p -> stack -> pointer;
-	}
-}
-
-static void
-jvm_stack_pop(gen_proc_t * p, unsigned size)
-{
-	p -> stack -> pointer -= size;
-
-	if(p -> stack -> pointer < 0)
-	{
-		printf("WARING: stack pointer %i\n", p -> stack -> pointer);
-	}
-}
-
-static void
-jvm_generate(gen_proc_t * p, unsigned get, unsigned push, char * format, ...)
-{
-	va_list ptr;
-	va_start(ptr, format);
-
-	jvm_stack_pop(p, get);
-	fprintf(p -> class -> fp, "  ");
-	vfprintf(p -> class -> fp, format, ptr);
-	jvm_stack_push(p, push);
-	fprintf(p -> class -> fp, " \t ;>>>> %i -- %i : current_stack(%i)\n", get, push, p -> stack -> pointer);
-
-	va_end(ptr);
-}
-
-static void
-jvm_generate_comment(gen_proc_t * p, char * format, ...)
-{
-	va_list ptr;
-	va_start(ptr, format);
-
-	fprintf(p -> class -> fp, "  ;;;; ");
-	vfprintf(p -> class -> fp, format, ptr);
-	fprintf(p -> class -> fp, "\n");
-
-	va_end(ptr);
-}
-
-static void
-jvm_generate_push_int(gen_proc_t * p, int64_t i)
-{
-	if(i == -1)
-	{
-		jvm_generate(p, 0, 1, "iconst_m1");
-	}
-	else if(i >= 0 && i <= 5)
-	{
-		jvm_generate(p, 0, 1, "iconst_%li", i);
-	}
-	else if(i >= -128 && i <= 127)
-	{
-		jvm_generate(p, 0, 1, "bipush %li", i);
-	}
-	else if(i >= -32768 && i <= 32767)
-	{
-		jvm_generate(p, 0, 1, "sipush %li", i);
-	}
-	else if(i >= -2147483648 && i <= 2147483647)
-	{
-		jvm_generate(p, 0, 1, "ldc %li", i);
-	}
-	else
-	{
-		jvm_generate(p, 0, 2, "ldc2_w %li", i);
-	}
-}
-
-static void
-jvm_generate_push_int_size(gen_proc_t * p, int64_t i, int size)
-{
-	int pushed_cell = 1;
-
-	if(i == -1)
-	{
-		jvm_generate(p, 0, 1, "iconst_m1");
-	}
-	else if(i >= 0 && i <= 5)
-	{
-		jvm_generate(p, 0, 1, "iconst_%li", i);
-	}
-	else if(i >= -128 && i <= 127)
-	{
-		jvm_generate(p, 0, 1, "bipush %li", i);
-	}
-	else if(i >= -32768 && i <= 32767)
-	{
-		jvm_generate(p, 0, 1, "sipush %li", i);
-	}
-	else if(i >= -2147483648 && i <= 2147483647)
-	{
-		jvm_generate(p, 0, 1, "ldc %li", i);
-	}
-	else
-	{
-		pushed_cell = 2;
-		jvm_generate(p, 0, 2, "ldc2_w %li", i);
-	}
-
-	assert(size <= 8);
-	if(size > 4 && pushed_cell == 1)
-	{
-		jvm_generate(p, pushed_cell, 2, "i2l");
-	}
-	else if(size <= 4)
-	{
-		if(pushed_cell > 1)
-		{
-			jvm_generate(p, 2, 1, "l2i");
-		}
-
-		if(size == 2)
-		{
-			jvm_generate(p, 1, 1, "i2s");
-		}
-		else if(size == 1)
-		{
-			jvm_generate(p, 1, 1, "i2b");
-		}
-	}
-}
-
-static void
-jvm_generate_push_float(gen_proc_t * p, double f, int size)
-{
-	if(size <= 4)
-	{
-		if(f == 0.0)
-		{
-			jvm_generate(p, 0, 1, "fconst_0");
-		}
-		if(f == 1.0)
-		{
-			jvm_generate(p, 0, 1, "fconst_1");
-		}
-		if(f == 2.0)
-		{
-			jvm_generate(p, 0, 1, "fconst_2");
-		}
-		else
-		{
-			jvm_generate(p, 0, 1, "ldc %lf", f);
-		}
-	}
-	else
-	{
-		if(f == 0.0)
-		{
-			jvm_generate(p, 0, 2, "dconst_0");
-		}
-		if(f == 1.0)
-		{
-			jvm_generate(p, 0, 2, "dconst_1");
-		}
-		else
-		{
-			jvm_generate(p, 0, 2, "ldc2_w %lf", f);
-		}
-	}
-}
-
-static void
-jvm_generate_push_string(gen_proc_t * p, char * str, int char_size)
-{
-	assert(char_size == 1);
-	int len = strlen(str);
-
-	jvm_generate_push_int(p, len + 1);
-	jvm_generate(p, 1, 1, "newarray byte");
-
-	for(int i = 0; i < len; i++)
-	{
-		jvm_generate(p, 1, 2, "dup");
-		jvm_generate_push_int(p, i);
-		jvm_generate_push_int(p, str[i]);
-		jvm_generate(p, 3, 0, "bastore");
-	}
-}
-
-static gen_var_t *
-oberon_generator_new_var()
-{
-	gen_var_t * v = GC_MALLOC(sizeof *v);
-	memset(v, 0, sizeof *v);
-	return v;	
-}
-
-static void
-jvm_generate_and_init_global_var(gen_var_t * v, struct gen_class * class, char * access, char * name, char * desc)
-{
-	assert(class -> p == NULL);
-	fprintf(class -> fp, ".field %s static %s %s\n\n", access, name, desc);
-
-	v -> storage = JVM_STORAGE_STATIC;
-	v -> full_name = new_string("%s/%s", class -> full_name, name);
-	v -> desc = new_string(desc);
-}
-
-static void
-jvm_generate_and_init_field(gen_var_t * v, struct gen_class * class, char * access, char * name, char * desc)
-{
-	assert(class -> p == NULL);
-	fprintf(class -> fp, ".field %s %s %s\n\n", access, name, desc);
-
-	v -> storage = JVM_STORAGE_FIELD;
-	v -> full_name = new_string("%s/%s", class -> full_name, name);
-	v -> desc = new_string(desc);
-}
-
-static void
-jvm_generate_and_init_local_var(gen_var_t * v, gen_proc_t * p, bool wide)
-{
-	v -> storage = JVM_STORAGE_REGISTER;
-	v -> reg = jvm_alloc_register_untyped(p -> rf, wide);
-}
-
-static void
-jvm_generate_and_init_named_local_var(gen_var_t * v, gen_proc_t * p, bool wide, char * name, char * desc)
-{
-	jvm_generate_and_init_local_var(v, p, wide);
-	v -> desc = new_string(desc);
-	jvm_generate(p, 0, 0, ".var %i is %s %s from start to end", v -> reg, name, desc);
-}
-
-static int
-jvm_new_label_id(gen_proc_t * p)
-{
-	int label_id = p -> label_id;
-	p -> label_id += 1;
-	return label_id;
-}
-
-static char *
-jvm_get_label_name(int label_id)
-{
-	return new_string("L%i", label_id);
-}
-
-static void
-jvm_generate_label(gen_proc_t * p, int label_id)
-{
-	jvm_generate(p, 0, 0, "L%i:", label_id);
-}
-
-static void
-jvm_generate_load(gen_proc_t * p, oberon_type_t * src_type, gen_var_t * src)
-{
-	char prefix;
-	int cell_size;
-
-	cell_size = jvm_cell_size_for_type(src_type);
-
-	switch(src -> storage)
-	{
-		case JVM_STORAGE_REGISTER:
-			prefix = jvm_get_prefix(src_type);
-			jvm_generate(p, 0, cell_size, "%cload %i", prefix, src -> reg);
-			break;
-		case JVM_STORAGE_STATIC:
-			jvm_generate(p, 0, cell_size, "getstatic %s %s", src -> full_name, src -> desc);
-			break;
-		case JVM_STORAGE_FIELD:
-			jvm_generate(p, 1, cell_size, "getfield %s %s", src -> full_name, src -> desc);
-			break;
-		default:
-			gen_error("jvm_generate_load: unknow storage type %i", src -> storage);
-			break;
-	}
-}
-
 static void
-jvm_generate_store(gen_proc_t * p, oberon_type_t * src_type, gen_var_t * dst)
-{
-	char prefix;
-	int cell_size;
-
-	cell_size = jvm_cell_size_for_type(src_type);
-
-	switch(dst -> storage)
-	{
-		case JVM_STORAGE_REGISTER:
-			prefix = jvm_get_prefix(src_type);
-			jvm_generate(p, cell_size, 0, "%cstore %i", prefix, dst -> reg);
-			break;
-		case JVM_STORAGE_STATIC:
-			jvm_generate(p, cell_size, 0, "putstatic %s %s", dst -> full_name, dst -> desc);
-			break;
-		case JVM_STORAGE_FIELD:
-			jvm_generate(p, 1 + cell_size, 0, "putfield %s %s", dst -> full_name, dst -> desc);
-			break;
-		default:
-			gen_error("jvm_generate_store: unknow storage type %i", dst -> storage);
-			break;
-	}
-}
+push_item(gen_proc_t * p, oberon_item_t * item);
 
 static void
 jvm_generate_new(gen_proc_t * p, oberon_type_t * type, int num);
@@ -424,15 +44,15 @@ jvm_generate_array_initialization(gen_proc_t * p, oberon_type_t * arr)
 	}
 
 	struct {
-		gen_var_t * index;
-		gen_var_t * length;
+		int reg_index;
+		int reg_length;
 		int start;
 		int end;
 	} loop[dim];
 
-	gen_var_t * dst = oberon_generator_new_var();
-	jvm_generate_and_init_local_var(dst, p, false);
-	jvm_generate_store(p, arr, dst);
+	int reg_dst;
+	reg_dst = jvm_alloc_register_untyped(p -> rf, false);
+	jvm_generate(p, 1, 0, "astore %i", reg_dst);
 
 	/*
 	 * Входящие параметры заграблены.
@@ -453,42 +73,38 @@ jvm_generate_array_initialization(gen_proc_t * p, oberon_type_t * arr)
 
 	for(int i = 0; i < dim; i++)
 	{
-		loop[i].index = oberon_generator_new_var();
-		loop[i].length = oberon_generator_new_var();
+		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_and_init_local_var(loop[i].index, p, false);
-		jvm_generate_and_init_local_var(loop[i].length, p, false);
-
-		/* TODO преределать через jvm_generate_load{{store}} */
 
 		jvm_generate(p, 0, 1, "iconst_0");
-		jvm_generate(p, 1, 0, "istore %i", loop[i].index -> reg);
+		jvm_generate(p, 1, 0, "istore %i", loop[i].reg_index);
 
-		jvm_generate_load(p, arr, dst);
+		jvm_generate(p, 0, 1, "aload %i", reg_dst);
 		jvm_generate(p, 1, 1, "arraylength");
-		jvm_generate(p, 1, 0, "istore %i", loop[i].length -> reg);
+		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].index -> reg);
-		jvm_generate(p, 0, 1, "iload %i", loop[i].length -> reg);
+		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_load(p, arr, dst);
-	jvm_generate(p, 0, 1, "iload %i", loop[0].index -> reg);
+	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].index -> reg);
+		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].index -> reg);
+		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);
 	}
@@ -582,19 +198,16 @@ jvm_generate_copy_array(gen_proc_t * p, oberon_type_t * arr)
 	}
 
 	struct {
-		gen_var_t * index;
-		gen_var_t * length;
+		int reg_index;
+		int reg_length;
 		int start;
 		int end;
 	} loop[dim];
 
-	gen_var_t * dst = oberon_generator_new_var();
-	gen_var_t * src = oberon_generator_new_var();
-	jvm_generate_and_init_local_var(dst, p, false);
-	jvm_generate_and_init_local_var(src, p, false);
-
-	jvm_generate_store(p, arr, src);
-	jvm_generate_store(p, arr, dst);
+	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.
@@ -615,26 +228,22 @@ jvm_generate_copy_array(gen_proc_t * p, oberon_type_t * arr)
 
 	for(int i = 0; i < dim; i++)
 	{
-		loop[i].index = oberon_generator_new_var();
-		loop[i].length = oberon_generator_new_var();
+		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_and_init_local_var(loop[i].index, p, false);
-		jvm_generate_and_init_local_var(loop[i].length, p, false);
-
-		/* TODO преределать через jvm_generate_load{{store}} */
 
 		jvm_generate(p, 0, 1, "iconst_0");
-		jvm_generate(p, 1, 0, "istore %i", loop[i].index -> reg);
+		jvm_generate(p, 1, 0, "istore %i", loop[i].reg_index);
 
-		jvm_generate_load(p, arr, src);
+		jvm_generate(p, 0, 1, "aload %i", reg_src);
 		jvm_generate(p, 1, 1, "arraylength");
-		jvm_generate(p, 1, 0, "istore %i", loop[i].length -> reg);
+		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].index -> reg);
-		jvm_generate(p, 0, 1, "iload %i", loop[i].length -> reg);
+		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);
 	}
 
@@ -642,17 +251,17 @@ jvm_generate_copy_array(gen_proc_t * p, oberon_type_t * arr)
 	{
 		/* Получаем записи по индексам ( -- dst src ) */
 
-		jvm_generate_load(p, arr, dst);
+		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].index -> reg);
+			jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
 			jvm_generate(p, 2, 1, "aaload");
 		}
 
-		jvm_generate_load(p, arr, src);
+		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].index -> reg);
+			jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
 			jvm_generate(p, 2, 1, "aaload");
 		}
 
@@ -666,20 +275,20 @@ jvm_generate_copy_array(gen_proc_t * p, oberon_type_t * arr)
 
 		/* Получаем массивы и индексы ( -- dst i src i ) */
 
-		jvm_generate_load(p, arr, dst);
-		jvm_generate(p, 0, 1, "iload %i", loop[0].index -> reg);
+		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].index -> reg);
+			jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
 		}
 
-		jvm_generate_load(p, arr, src);
-		jvm_generate(p, 0, 1, "iload %i", loop[0].index -> reg);
+		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].index -> reg);
+			jvm_generate(p, 0, 1, "iload %i", loop[i].reg_index);
 		}
 
 		/* Копируем значения ( dst i src i -- ) */
@@ -689,7 +298,7 @@ jvm_generate_copy_array(gen_proc_t * p, oberon_type_t * arr)
 
 	for(int i = dim - 1; i >= 0; i--)
 	{
-		jvm_generate(p, 0, 0, "iinc %i 1", loop[i].index -> reg);
+		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);
 	}
@@ -703,13 +312,6 @@ jvm_generate_push_procedure_pointer(gen_proc_t * p, oberon_object_t * proc)
 	jvm_generate(p, 0, 1, "getstatic %s/pointer %s", full_name, desc);
 }
 
-// ==========================================
-// ==========================================
-// ==========================================
-
-static void
-push_item(gen_proc_t * p, oberon_item_t * item);
-
 void
 oberon_generator_init_context(oberon_context_t * ctx)
 {
@@ -793,36 +395,34 @@ oberon_generate_procedure_pointer_class(oberon_object_t * proc)
 
 	signature = jvm_get_procedure_signature(proc -> type);
 
-	gen_proc_t * p;
-	gen_var_t * this_v;
-
-	p = jvm_create_proc(class);
+	gen_proc_t * p = jvm_create_proc(class);
 	jvm_generate_function_header(p, "public", "invoke", signature);
+	jvm_alloc_register_untyped(p -> rf, false);
 
-	this_v = oberon_generator_new_var();
-	jvm_generate_and_init_local_var(this_v, p, false);
-
-	gen_var_t * v;
 	int use_size = 0;
 	int num = proc -> type -> num_decl;
-	oberon_object_t * arg = proc -> type -> decl;
+	oberon_object_t * param = proc -> type -> decl;
 	for(int i = 0; i < num; i++)
 	{
-		v = oberon_generator_new_var();
-		bool wide = jvm_is_wide_type(arg -> type);
-		char * desc = jvm_get_descriptor(arg -> type);
-		jvm_generate_and_init_named_local_var(v, p, wide, arg -> name, desc);
-
-		jvm_generate_load(p, arg -> type, v);
-
-		use_size += (wide) ? (2) : (1);
-
-		arg = arg -> next;
+		gen_var_t * v = oberon_generator_new_var();
+		gen_type_t * t = param -> type -> gen_type;
+		use_size += t -> cell_size;
+		if(param -> class == OBERON_CLASS_VAR_PARAM)
+		{
+			jvm_generate_and_init_var_param(p, v, param -> name, t);
+			jvm_generate_ldst_prepare(p, v);
+		}
+		else
+		{
+			jvm_generate_and_init_named_local_var(p, v, param -> name, t);
+			jvm_generate_load(p, v);
+		}
+		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_VOID)
@@ -876,12 +476,22 @@ oberon_generator_init_type(oberon_context_t * ctx, oberon_type_t * type)
 	memset(t, 0, sizeof *t);
 	type -> gen_type = t;
 
+	if(type -> class != OBERON_TYPE_VOID)
+	{
+		t -> wide = jvm_is_wide_type(type);
+		t -> prefix = jvm_get_prefix(type);
+		t -> postfix = jvm_get_postfix(type);
+	}
+	t -> cell_size = jvm_cell_size_for_type(type);
+	t -> desc = jvm_get_descriptor(type);
+
 	switch(type -> class)
 	{
 		case OBERON_TYPE_VOID:
 		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:
@@ -896,8 +506,6 @@ oberon_generator_init_type(oberon_context_t * ctx, oberon_type_t * type)
 		case OBERON_TYPE_PROCEDURE:
 			oberon_generate_procedure_class(type);
 			break;
-		case OBERON_TYPE_POINTER:
-			break;
 		default:
 			gen_error("oberon_generator_init_type: unk calss %i", type -> class);
 			break;
@@ -914,10 +522,10 @@ oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * rec)
 	oberon_object_t * field = rec -> decl;
 	for(int i = 0; i < num; i++)
 	{
-		gen_var_t * v = field -> gen_var;
 		char * name = field -> name;
-		char * desc = jvm_get_descriptor(field -> type);
-		jvm_generate_and_init_field(v, class, "public", name, desc);
+		gen_var_t * v = field -> gen_var;
+		gen_type_t * t = field -> type -> gen_type;
+		jvm_generate_and_init_field(class, v, name, t);
 		field = field -> next;
 	}
 
@@ -939,12 +547,16 @@ oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * rec)
 	field = rec -> decl;
 	for(int i = 0; i < num; i++)
 	{
+		jvm_generate(p, 0, 1, "aload_0");
+		jvm_generate_variable_initialization(p, field -> gen_var);
+
 		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 -> type, field -> gen_var);
+			jvm_generate_store(p, field -> gen_var);
 		}
 		field = field -> next;
 	}
@@ -956,37 +568,37 @@ oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * rec)
 	p = jvm_create_proc(class);
 	gen_var_t * copy_dst = oberon_generator_new_var();
 	gen_var_t * copy_src = oberon_generator_new_var();
-	char * desc = jvm_get_descriptor(rec);
-	char * signature = new_string("(%s%s)V", desc, desc);
+	char * signature = new_string("(%s%s)V", rec -> gen_type -> desc, rec -> gen_type -> desc);
 	jvm_generate_function_header(p, "public static", "$COPY$", signature);
-	jvm_generate_and_init_named_local_var(copy_dst, p, false, "dst", desc);
-	jvm_generate_and_init_named_local_var(copy_src, p, false, "src", desc);
+	jvm_generate_and_init_named_local_var(p, copy_dst, "dst", rec -> gen_type);
+	jvm_generate_and_init_named_local_var(p, copy_src, "src", rec -> gen_type);
 	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, rec, copy_dst);
-			jvm_generate_load(p, field -> type, field -> gen_var);
-			jvm_generate_load(p, rec, copy_src);
-			jvm_generate_load(p, field -> type, field -> gen_var);
+			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, rec, copy_dst);
-			jvm_generate_load(p, field -> type, field -> gen_var);
-			jvm_generate_load(p, rec, copy_src);
-			jvm_generate_load(p, field -> type, field -> gen_var);
+			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, rec, copy_dst);
-			jvm_generate_load(p, rec, copy_src);
-			jvm_generate_load(p, field -> type, field -> gen_var);
-			jvm_generate_store(p, field -> type, field -> gen_var);
+			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;
 	}
@@ -1008,12 +620,9 @@ oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
 	struct gen_class * class;
 	class = m -> class;
 
-	char * desc;
 	switch(var -> class)
 	{
 		case OBERON_CLASS_VAR_PARAM:
-			gen_error("generator: VAR-parameters not implemented");
-			break;
 		case OBERON_CLASS_PARAM:
 			/* Заполняется при генерации функции */
 			/* смотри jvm_init_local_object() */
@@ -1025,10 +634,9 @@ oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
 		case OBERON_CLASS_VAR:
 			/* Локальные заполняются при генерации функции */
 			/* смотри jvm_init_local_object() */
-			if(var -> local == 0)
+			if(var -> local == false)
 			{
-				desc = jvm_get_descriptor(var -> type);
-				jvm_generate_and_init_global_var(v, class, "public", var -> name, desc);
+				jvm_generate_and_init_global_var(class, v, var -> name, var -> type -> gen_type);
 			}
 			break;
 		default:
@@ -1051,10 +659,7 @@ oberon_generator_init_temp_var(oberon_context_t * ctx, oberon_object_t * var)
 	gen_proc_t * p;
 	p = m -> class -> p;
 
-	bool wide;
-	wide = jvm_is_wide_type(var -> type);
-
-	jvm_generate_and_init_local_var(v, p, wide);
+	jvm_generate_and_init_local_var(p, v, var -> type -> gen_type);
 }
 
 void
@@ -1067,8 +672,10 @@ oberon_generator_init_proc(oberon_context_t * ctx, oberon_object_t * proc)
 	{
 		gen_error("generator: local procedures not implemented");
 	}
-
-	oberon_generate_procedure_pointer_class(proc);
+	else
+	{
+		oberon_generate_procedure_pointer_class(proc);
+	}
 }
 
 void
@@ -1116,11 +723,13 @@ oberon_generate_begin_module(oberon_context_t * ctx)
 	{
 		if(x -> class == OBERON_CLASS_VAR)
 		{
+			jvm_generate_variable_initialization(p, x -> gen_var);
 			if(x -> type -> class == OBERON_TYPE_ARRAY
 				|| x -> type -> class == OBERON_TYPE_RECORD)
 			{
+				jvm_generate_ldst_prepare(p, x -> gen_var);
 				jvm_generate_new(p, x -> type, 0);
-				jvm_generate_store(p, x -> type, x -> gen_var);
+				jvm_generate_store(p, x -> gen_var);
 			}
 		}
 
@@ -1138,35 +747,6 @@ oberon_generate_end_module(oberon_context_t * ctx)
 	jvm_generate_function_end(class -> p);
 }
 
-static void
-jvm_init_local_object(gen_proc_t * p, oberon_object_t * x)
-{
-	gen_var_t * v;
-	bool wide;
-	char * desc;
-	struct gen_class * class;
-
-	v = x -> gen_var;
-	class = p -> class;
-	wide = jvm_is_wide_type(x -> type);
-	desc = jvm_get_descriptor(x -> type);
-
-	// Убеждаемся что сейчас находимся в функции
-	assert(class -> p);
-	assert(x -> local);
-
-	switch(x -> class)
-	{
-		case OBERON_CLASS_VAR:
-		case OBERON_CLASS_PARAM:
-			jvm_generate_and_init_named_local_var(v, p, wide, x -> name, desc);
-			break;
-		default:
-			gen_error("jvm_init_local_object: wat");
-			break;
-	}
-}
-
 /*
  * Генерирует код для получения размера измерения массива
  * Аналог Обероновского LEN(v, n); где n = 0 - первое измерение.
@@ -1188,13 +768,15 @@ jvm_generate_array_len(gen_proc_t * p, int dim)
 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, arr, v);
+			jvm_generate_load(p, v);
 			jvm_generate_array_len(p, dim);
 			dim += 1;
 		}
@@ -1203,19 +785,77 @@ jvm_generate_array_duplicate_and_replace(gen_proc_t * p, gen_var_t * v, oberon_t
 
 	jvm_generate_new(p, arr, dim);
 	jvm_generate(p, 1, 2, "dup");
-	jvm_generate_load(p, arr, v);
+	jvm_generate_load(p, v);
 	jvm_generate_copy_array(p, arr);
-	jvm_generate_store(p, arr, v);
+	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, rec, v);
+	jvm_generate_load(p, v);
 	jvm_generate_copy_record(p, rec);
-	jvm_generate_store(p, rec, v);
+	jvm_generate_store(p, v);
+}
+
+static void
+jvm_init_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:
+			jvm_generate_and_init_var_param(p, v, x -> name, x -> type -> gen_type);
+			break;
+		case OBERON_CLASS_VAR:
+		case OBERON_CLASS_PARAM:
+			jvm_generate_and_init_named_local_var(p, v, x -> name, x -> type -> gen_type);
+			break;
+		default:
+			gen_error("jvm_init_local_object: wat");
+			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:
+			break;
+		case OBERON_CLASS_VAR:
+			jvm_generate_variable_initialization(p, v);
+			break;
+		case OBERON_CLASS_PARAM:
+			jvm_generate_param_initialization(p, v);
+			break;
+		default:
+			gen_error("jvm_generate_local_initialization: wat");
+			break;
+	}
 }
 
 void
@@ -1230,13 +870,21 @@ oberon_generate_begin_proc(oberon_context_t * ctx, oberon_object_t * proc)
 	jvm_generate_function_header(p, "public static", proc -> name, signature);
 
 	/* Выделение регистров под параметры и переменные */
-	oberon_object_t * var = proc -> type -> decl;
+	oberon_object_t * var = proc -> scope -> list -> next;
 	while(var)
 	{
 		jvm_init_local_object(p, var);
 		var = var -> next;
 	}
 
+	/* Инициализация */
+	var = proc -> scope -> list -> next;
+	while(var)
+	{
+		jvm_generate_local_initialization(p, var);
+		var = var -> next;
+	}
+
 	/* Копирование статических/открытых массивов и записей */
 	var = proc -> type -> decl;
 	while(var)
@@ -1332,6 +980,30 @@ oberon_generate_branch(oberon_context_t * ctx, oberon_expr_t * cond, bool gotoif
 	}
 }
 
+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, (oberon_item_t *) expr -> item.parent);
+			push_expr(p, expr -> item.args);
+			break;
+		case MODE_FIELD:
+			push_item(p, (oberon_item_t *) expr -> item.parent);
+			jvm_generate_ldst_prepare(p, expr -> item.var -> gen_var);
+			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)
 {
@@ -1366,11 +1038,21 @@ jvm_generate_call_proc(gen_proc_t * p, oberon_item_t * desig)
 
 	int num = desig -> num_args;
 	oberon_expr_t * arg = desig -> args;
+	oberon_object_t * param = procsig -> decl;
 	for(int i = 0; i < num; i++)
 	{
-		args_cells += jvm_cell_size_for_type(arg -> result);
-		push_expr(p, arg);
+		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)
@@ -1468,7 +1150,7 @@ push_item(gen_proc_t * p, oberon_item_t * item)
 			}
 			else
 			{
-				jvm_generate_load(p, item -> result, item -> var -> gen_var);
+				jvm_generate_load(p, item -> var -> gen_var);
 			}
 			break;
 		case MODE_INTEGER:
@@ -1494,7 +1176,7 @@ push_item(gen_proc_t * p, oberon_item_t * item)
 		case MODE_FIELD:
 			assert(item -> parent -> is_item);
 			push_item(p, (oberon_item_t *) item -> parent);
-			jvm_generate_load(p, item -> result, item -> var -> gen_var);
+			jvm_generate_load(p, item -> var -> gen_var);
 			break;
 		case MODE_DEREF:
 			/* Все объекты в jvm представляются как указатели */
@@ -1524,12 +1206,10 @@ jvm_generate_logical_not(gen_proc_t * p)
 {
 	int label_done = jvm_new_label_id(p);
 	int label_false = jvm_new_label_id(p);
-	char * label_name_done = jvm_get_label_name(label_done);
-	char * label_name_false = jvm_get_label_name(label_false);
 
-	jvm_generate(p, 1, 0, "ifne %s", label_name_false);
+	jvm_generate(p, 1, 0, "ifne L%i", label_false);
 	jvm_generate(p, 0, 1, "iconst_1");
-	jvm_generate(p, 0, 0, "goto %s", label_name_done);
+	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);
@@ -1684,15 +1364,13 @@ 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);
-	char * label_name_calc_b = jvm_get_label_name(label_calc_b);
-	char * label_name_done = jvm_get_label_name(label_done);
 
 	/* a OR b -- если a, то TRUE, иначе b */
 
 	push_expr(p, a);
-	jvm_generate(p, 1, 0, "ifeq %s", label_name_calc_b);
+	jvm_generate(p, 1, 0, "ifeq L%i", label_calc_b);
 	jvm_generate(p, 0, 1, "iconst_1");
-	jvm_generate(p, 0, 0, "goto %s", label_name_done);
+	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);
@@ -1703,15 +1381,13 @@ 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);
-	char * label_name_false = jvm_get_label_name(label_false);
-	char * label_name_done = jvm_get_label_name(label_done);
 
 	/* a AND b -- если a, то b, иначе FALSE */
 
 	push_expr(p, a);
-	jvm_generate(p, 1, 0, "ifeq %s", label_name_false);
+	jvm_generate(p, 1, 0, "ifeq L%i", label_false);
 	push_expr(p, b);
-	jvm_generate(p, 0, 0, "goto %s", label_name_done);
+	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);
@@ -1725,53 +1401,51 @@ jvm_generate_range(gen_proc_t * p, oberon_expr_t * a, oberon_expr_t * b)
 
 	char prefix;
 	int cell_size;
-	oberon_type_t * t;
+	oberon_type_t * type;
 	gen_var_t * ra;
 	gen_var_t * rb;
 	int label_else;
 	int label_end;
-	bool wide;
 
-	t = a -> result;
-	cell_size = jvm_cell_size_for_type(t);
-	prefix = jvm_get_prefix(t);
+	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, t -> size);
+		jvm_generate_push_int_size(p, 1, type -> size);
 		push_expr(p, a);
 		jvm_generate(p, 2 * cell_size, cell_size, "%cshl", prefix);
 	}
 	else
 	{
-		wide = jvm_is_wide_type(t);
 		ra = oberon_generator_new_var();
 		rb = oberon_generator_new_var();
-		jvm_generate_and_init_local_var(ra, p, wide);
-		jvm_generate_and_init_local_var(rb, p, wide);
+		jvm_generate_and_init_local_var(p, ra, type -> gen_type);
+		jvm_generate_and_init_local_var(p, rb, type -> gen_type);
 		label_else = jvm_new_label_id(p);
 		label_end = jvm_new_label_id(p);
 
 		push_expr(p, a);
-		jvm_generate_store(p, t, ra);
+		jvm_generate_store(p, ra);
 		push_expr(p, b);
-		jvm_generate_store(p, t, rb);
+		jvm_generate_store(p, rb);
 
-		jvm_generate_load(p, t, ra);
-		jvm_generate_load(p, t, 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, t -> size);
-		jvm_generate_load(p, t, rb);
+		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, t -> size);
-		jvm_generate_load(p, t, ra);
+		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, t -> size);
+		jvm_generate_push_int_size(p, 0, type -> size);
 		jvm_generate_label(p, label_end);
 	}
 
@@ -1908,8 +1582,9 @@ store_expr(gen_proc_t * p, oberon_expr_t * dst, oberon_expr_t * src)
 	else switch(item -> mode)
 	{
 		case MODE_VAR:
+			jvm_generate_ldst_prepare(p, item -> var -> gen_var);
 			push_expr(p, src);
-			jvm_generate_store(p, src -> result, item -> var -> gen_var);
+			jvm_generate_store(p, item -> var -> gen_var);
 			break;
 		case MODE_INDEX:
 			;
@@ -1924,8 +1599,9 @@ store_expr(gen_proc_t * p, oberon_expr_t * dst, oberon_expr_t * src)
 		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, src -> result, item -> var -> gen_var);
+			jvm_generate_store(p, item -> var -> gen_var);
 			break;
 		default:
 			gen_error("store_expr: unk mode %i", item -> mode);
diff --git a/src/backends/jvm/generator-jvm.h b/src/backends/jvm/generator-jvm.h
index 3095a49..242aa70 100644
--- a/src/backends/jvm/generator-jvm.h
+++ b/src/backends/jvm/generator-jvm.h
@@ -30,7 +30,9 @@ enum gen_storage
 	JVM_STORAGE_UNKNOWN,
 	JVM_STORAGE_REGISTER,
 	JVM_STORAGE_STATIC,
-	JVM_STORAGE_FIELD
+	JVM_STORAGE_FIELD,
+	JVM_STORAGE_LOCAL,
+	JVM_STORAGE_VARPTR
 };
 
 
@@ -46,14 +48,20 @@ struct gen_type_t
 {
 	int rec_id;
 	struct gen_class * class;
+
+	bool wide;
+	char prefix;
+	char postfix;
+	char * desc;
+	int cell_size;
 };
 
 struct gen_var_t
 {
 	enum gen_storage storage;
+	gen_type_t * type;
 	int reg;
 	char * full_name;
-	char * desc;
 };
 
 struct gen_context_t
diff --git a/src/oberon.c b/src/oberon.c
index e4b9157..58eb67c 100644
--- a/src/oberon.c
+++ b/src/oberon.c
@@ -1223,13 +1223,21 @@ oberon_autocast_call(oberon_context_t * ctx, oberon_item_t * desig)
 	{
 		if(param -> class == OBERON_CLASS_VAR_PARAM)
 		{
+			if(arg -> result != param -> type)
+			{
+				oberon_error(ctx, "incompatible type");
+			}
 			if(arg -> read_only)
 			{
 				oberon_error(ctx, "assign to read-only var");
 			}
+			casted[i] = arg;
+		}
+		else
+		{
+			casted[i] = oberon_autocast_to(ctx, arg, param -> type);
 		}
 
-		casted[i] = oberon_autocast_to(ctx, arg, param -> type);
 		arg = arg -> next;
 		param = param -> next;
 	}
diff --git a/src/test.c b/src/test.c
index dab2914..cd28a21 100644
--- a/src/test.c
+++ b/src/test.c
@@ -8,34 +8,24 @@ static char source_test[] =
 	"(* Main module *)"
 	"MODULE Test;"
 	"IMPORT Out;"
+	""
 	"TYPE"
-	"  R1 = POINTER TO R1Desc;"
-	"  R1Desc = RECORD a : INTEGER; END;"
-	"  R2 = POINTER TO R2Desc;"
-	"  R2Desc = RECORD (R1Desc) b : INTEGER; END;"
-	"  Y1 = POINTER TO Y1Desc;"
-	"  Y1Desc = RECORD END;"
+	"  R = RECORD iii : INTEGER; END;"
 	""
 	"VAR"
-	"  r1 : R1;"
-	"  r2 : R2;"
-	"  y1 : Y1;"
+	"  i : INTEGER;"
+	"  a : ARRAY 3 OF INTEGER;"
+	"  r : R;"
 	""
+	"PROCEDURE X(VAR x : INTEGER);"
 	"BEGIN"
-	"  NEW(r1);"
-	"  NEW(r2);"
-	"  NEW(y1);"
-	"  r1 := r2;"
-	"  Out.Open;"
-	"  WITH r1 : R2 DO"
-	"    r1.b := 666;"
-	"    Out.String('R2 branch');"
-	"  | y1 : Y1 DO"
-	"    Out.String('Y1 branch');"
-	"  ELSE"
-	"    Out.String('Something else');"
-	"  END;"
-	"  Out.Ln;"
+	"  x := x * 666;"
+	"END X;"
+	""
+	"BEGIN;"
+	"  r.iii := 2;"
+	"  X(r.iii);"
+	"  Out.Int(r.iii, 0); Out.Ln;"
 	"END Test."
 ;