int emu_step (emu *e, ut8 *buf)
{
int ret;
ut64 addr = r_reg_getv (e->reg, r_reg_get_name (e->reg, R_REG_NAME_PC)); //Check Breakboints here: new return stat for that
if (e->plugin->read) {
if (e->plugin->min_read_sz)
e->plugin->read (e, addr, buf, e->plugin->min_read_sz);
else e->plugin->read (e, addr, buf, sizeof(int));
} else {
if (e->plugin->min_read_sz)
emu_read (e, addr, buf, e->plugin->min_read_sz);
else emu_read (e, addr, buf, sizeof(int));
}
if (e->plugin->deps & EMU_PLUGIN_DEP_ASM) { //only disassemble if it is necessary
r_asm_set_pc (e->a, addr);
if (e->plugin->min_read_sz)
r_asm_disassemble (e->a, e->op, buf, e->plugin->min_read_sz);
else r_asm_disassemble (e->a, e->op, buf, sizeof(int));
}
if (e->plugin->deps & EMU_PLUGIN_DEP_ANAL) { //only analize if it is necessary
if (e->plugin->min_read_sz)
r_anal_op (e->anal, e->anop, addr, buf, e->plugin->min_read_sz);
else r_anal_op (e->anal, e->anop, addr, buf, sizeof(int));
}
ret = e->plugin->step (e, buf);
if (e->plugin->deps & EMU_PLUGIN_DEP_ANAL)
r_anal_op_fini (e->anop);
return ret;
}
int gb_read(emu *e, ut64 addr, ut8 *buf, ut32 len)
{
if(0x4000 <= addr && addr < 0x8000)
return emu_read(e, addr + (r_reg_getv(e->reg, "mbcrom") << 16), buf, len);
if(0xa000 <= addr && addr < 0xc000)
return emu_read(e, addr + (r_reg_getv(e->reg, "mbcram") << 16), buf, len);
return emu_read(e, addr, buf, len);
}
/*
* VOP_READ
*/
static
int
emufs_read(struct vnode *v, struct uio *uio)
{
struct emufs_vnode *ev = v->vn_data;
uint32_t amt;
size_t oldresid;
int result;
KASSERT(uio->uio_rw==UIO_READ);
while (uio->uio_resid > 0) {
amt = uio->uio_resid;
if (amt > EMU_MAXIO) {
amt = EMU_MAXIO;
}
oldresid = uio->uio_resid;
result = emu_read(ev->ev_emu, ev->ev_handle, amt, uio);
if (result) {
return result;
}
if (uio->uio_resid == oldresid) {
/* nothing read - EOF */
break;
}
}
return 0;
}
