+extern uint cpm_dpalloc(uint size, uint align);
+extern int cpm_dpfree(uint offset);
+extern uint cpm_dpalloc_fixed(uint offset, uint size, uint align);
+extern void cpm_dpdump(void);
+extern void *cpm_dpram_addr(uint offset);
+extern void cpm_setbrg(uint brg, uint rate);
+