/* image.c -- start a node from a capsule image.  See image.h.
 *
 * Nothing here uses the C library: the bare-metal kernel links this file.
 */
#include "v4/image.h"

int v4_image_boot(v4_node *n, v4_exec_state *es, v4_heat *h, const v4_image *im,
                  unsigned char *disk, unsigned blocks)
{
    unsigned i;

    if (im->cell_bits != (unsigned)V4_CELL_BITS || im->node_words != (unsigned)V4_NODE_WORDS
        || im->data_ring != (unsigned)V4_DATA_RING || im->ret_ring != (unsigned)V4_RET_RING)
        return 0;

    v4_node_reset(n);
    v4_exec_reset(es);
    v4_heat_reset(h);
    for (i = 0; i < im->count; i++)
        if (v4_node_addr_ok(im->cells[i].addr)) n->mem[im->cells[i].addr] = im->cells[i].value;

    v4_node_console_attach(n, im->console_tx);
    v4_node_console_input_attach(n, im->console_rx, im->console_status);
    v4_node_stack_regs_attach(n, im->dstack_reg, im->rstack_reg);
    v4_node_error_attach(n, im->node_error);
    v4_node_fault_attach(n, im->fault_table);
    if (disk && blocks) v4_node_storage_attach(n, im->storage_reg, disk, blocks);

    n->p = im->entry;
    return 1;
}

int v4_image_waiting(const v4_node *n, const v4_image *im)
{
    return n->input_pos == n->input_len && n->p >= im->key_start && n->p < im->key_end;
}