mem.h File Reference

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Functions
struct mem_t *	mem_new ()
void	mem_create (struct mem_t *)
void	mem_destroy (struct mem_t *)
void	byte_write (struct mem_t *, address_byte_t, byte_t)
byte_t	byte_read (struct mem_t *, address_byte_t)
void	word_write (struct mem_t *, address_word_t, word_t)
word_t	word_read (struct mem_t *, address_word_t)

Function Documentation

byte_read()

byte_t byte_read	(	struct mem_t *	memory,
		address_byte_t	addr
	)

{
    assert(__is_valid_addr(memory, addr, 1));
    if (!(memory->default_memory)) {
        return (byte_t) memory->mem_byte->read_byte(memory->mem_byte, addr);
    }
 
    // addr = __corect_addr_for_write_word(addr);
    assert(__is_valid_addr(memory, addr, 1));
 
    return (byte_t) memory->mem_word->read_byte(memory->mem_word, addr);
}

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byte_write()

void byte_write	(	struct mem_t *	memory,
		address_byte_t	addr,
		byte_t	data
	)

{
    assert(__is_valid_addr(memory, addr, 1));
    if (!(memory->default_memory)) {
        memory->mem_byte->write_byte(memory->mem_byte, addr, data);
        return;
    }
 
    // addr = __corect_addr_for_write_word(addr);
    assert(__is_valid_addr(memory, addr, 1));
 
    memory->mem_word->write_byte(memory->mem_word, addr, data);
}

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mem_create()

void mem_create

(

struct mem_t *

memory

)

{
    memory->default_memory = g_default_memory;
 
    if (!(memory->default_memory)) {
        memory->mem_byte = (mem_byte_t *) mem_byte_new();
        mem_byte_create((struct mem_byte_t *) memory->mem_byte,
                        __get_size_buffer());
        return;
    }
    memory->mem_word = (mem_word_t *) mem_word_new();
    mem_word_create((struct mem_word_t *) memory->mem_word,
                    __get_size_buffer());
}

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mem_destroy()

void mem_destroy

(

struct mem_t *

memory

)

{
    if (!(memory->default_memory)) {
        mem_byte_destroy((struct mem_byte_t *) memory->mem_byte);
        free(memory->mem_byte);
        return;
    }
    mem_word_destroy((struct mem_word_t *) memory->mem_word);
    free(memory->mem_word);
}

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mem_new()

struct mem_t * mem_new

(

)

{
    return (mem_t *) malloc(sizeof(mem_t));
}

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word_read()

word_t word_read	(	struct mem_t *	memory,
		address_word_t	addr
	)

{
    assert(__is_valid_addr(memory, addr, 2));
    if (!(memory->default_memory)) {
        return (word_t) memory->mem_byte->read_word(memory->mem_byte, addr);
    }
    if (addr & 1) {
        addr &= -1;
    }
 
    addr = __corect_addr_for_write_word(addr);
    assert(__is_valid_addr(memory, addr, 2));
    return (word_t) memory->mem_word->read_word(memory->mem_word, addr);
}

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word_write()

void word_write	(	struct mem_t *	memory,
		address_word_t	addr,
		word_t	data
	)

{
    addr = __corect_addr_for_write_word(addr);
    assert(__is_valid_addr(memory, addr, 2));
 
    if (!(memory->default_memory)) {
        memory->mem_byte->write_word(memory->mem_byte, addr, data);
        return;
    }
 
    memory->mem_word->write_word(memory->mem_word, addr, data);
}

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