• Constants
• BASIC language keyword tokens
• Configuration diagnostics
• int zx_basic_length()
• int zx_var_length()
• Interfacing to the ZX 81 BASIC
• int zx_line(int line)
• int zx_getstr(char variable, char *value)
• void zx_setstr(char variable, char *value)
• int zx_getint(char *variable)
• void zx_setint(char *variable, int value)
• double zx_getfloat(char *variable)
• void zx_setfloat(char *variable, float value)
• Example
• Miscellaneous functions
• invtxt()
• mirrortxt()
• zx_asciimode()
• zx_ascii(unsigned char character)
• ascii_zx(unsigned char character)
• zx_fast()
• zx_slow()
• hrg_tune_left()
• hrg_tune_right()
• blank()
• noblank()
• High resolution library related functions
• base_graphics global variable
• _clg_hr()
• hrg_off()
• hrg_on()
• invhrg()
• copytxt(int ovmode)