mirror of
https://github.com/rkujawa/rk65c02.git
synced 2024-06-22 17:29:27 +00:00
63 lines
869 B
C
63 lines
869 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <string.h>
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#include "bus.h"
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#include "device.h"
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uint8_t device_ram_read_1(void *, uint16_t);
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void device_ram_write_1(void *, uint16_t, uint8_t);
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uint8_t
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device_ram_read_1(void *vd, uint16_t offset)
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{
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device_t *d;
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uint8_t *ram;
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d = (device_t *) vd;
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ram = d->aux;
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return ram[offset];
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}
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void
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device_ram_write_1(void *vd, uint16_t offset, uint8_t val)
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{
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device_t *d;
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uint8_t *ram;
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d = (device_t *) vd;
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ram = d->aux;
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ram[offset] = val;
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}
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device_t *
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device_ram_init(uint16_t size)
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{
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device_t *d;
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d = (device_t *) malloc(sizeof(device_t));
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assert(d != NULL);
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d->name = "RAM";
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d->size = size;
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d->read_1 = device_ram_read_1;
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d->write_1 = device_ram_write_1;
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d->aux = malloc(size);
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memset(d->aux, 0, size);
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return d;
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}
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void
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device_ram_finish(device_t *d)
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{
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free(d->aux);
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}
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