+PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);\r
+PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);\r
+\r
+// cd/buffering.c\r
+PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);\r
+\r
+// sound/sound.c\r
+PICO_INTERNAL void sound_reset(void);\r
+PICO_INTERNAL void sound_timers_and_dac(int raster);\r
+PICO_INTERNAL int sound_render(int offset, int length);\r
+PICO_INTERNAL void sound_clear(void);\r
+// z80 functionality wrappers\r
+PICO_INTERNAL void z80_init(void);\r
+PICO_INTERNAL void z80_resetCycles(void);\r
+PICO_INTERNAL void z80_int(void);\r
+PICO_INTERNAL int z80_run(int cycles);\r
+PICO_INTERNAL void z80_pack(unsigned char *data);\r
+PICO_INTERNAL void z80_unpack(unsigned char *data);\r
+PICO_INTERNAL void z80_reset(void);\r
+PICO_INTERNAL void z80_exit(void);\r