c64vm.c

/*
Copyright (c) 2023-2024 Noah Scholz

This file is part of the c64vm project.

c64vm is free software: you can redistribute it and/or modify
it under the terms of the MIT License.

c64vm is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the MIT License for more details.

You should have received a copy of the MIT License
along with c64vm. If not, see <https://mit-license.org/>.
*/
#include <c64vm.h>



static void c64vm_inject(c64mm_t *mm, uint64_t address, uint8_t *data, size_t size)
{
    for (size_t i = 0; i < size; i++)
    {
        c64mm_setUint8(mm, address + i, data[i]);
    }
}


static void c64vm_inject_file(c64mm_t *mm, uint64_t address, const char *filename)
{
    FILE *file = fopen(filename, "rb");
    if (file == NULL)
    {
        error("c64vm_inject_file: failed to open file %s\n", filename);
    }
    fseek(file, 0, SEEK_END);
    size_t size = ftell(file);
    fseek(file, 0, SEEK_SET);
    uint8_t *data = (uint8_t *)malloc(size);
    if (data == NULL)
    {
        error("c64vm_inject_file: malloc failed\n");
    }
    fread(data, 1, size, file);
    fclose(file);
    c64vm_inject(mm, address, data, size);
    free(data);
}

// Just for now
// will be modified into a more complex interface
void c64vm_run()
{
    c64mm_t *mm = c64mm_create();
    c64cpu_t *cpu = c64cpu_create(mm, 0x10000000);
    c64dev_t *mem = c64mem_createDevice(0x000000000fffffff, cpu);
    c64dev_t *stack = c64mem_createDevice(0x000000000fffffff, cpu);
    c64mm_map(mm, mem, 0x0000000000000000, 0x000000000fffffff, 1);
    c64mm_map(mm, stack, 0xfffffffff0000000, 0xffffffffffffffff, 1);

    const char *filename = "out.bin";

    c64vm_inject_file(mm, 0x0000000000000000, filename);

    c64cpu_viewMemoryAt(cpu, 0x0000000000000000, 64);


    c64cpu_run(cpu, 1);

    c64cpu_destroy(cpu);
}