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#include <stdint.h>
#include <sys/types.h>
#include <string.h>
#include <inttypes.h>
#include "cpu.h"
#include "mem.h"
#include "log.h"
uint8_t *MEM;
uint64_t mem_size = 64 * 1024 * 1024;
void store(size_t addr, uint32_t value)
{
if (addr & 0x2)
trap(TRP_UNALIGNED);
if (addr >= mem_size)
trap(TRP_SEGV);
memcpy(&MEM[addr], &value, 4);
}
uint32_t load(size_t addr)
{
uint32_t tmp32;
if (addr & 0x2)
trap(TRP_UNALIGNED);
if (addr >= mem_size)
trap(TRP_SEGV);
memcpy(&tmp32, &MEM[addr], 4);
return tmp32;
}
void push(uint32_t value)
{
//debug("push(%"PRIu32")", value);
GPR[StP] -= 4;
store(GPR[StP], value);
}
uint32_t pop(void)
{
uint32_t tmp32 = load(GPR[StP]);
//debug("pop(%"PRIu32")", tmp32);
GPR[StP] += 4;
return tmp32;
}
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