check_attn_key 29 src/dps8/dps8_console.h int check_attn_key (void); check_attn_key 1900 src/dps8/dps8_cpu.c int con_unit_idx = check_attn_key (); check_attn_key 2226 src/dps8/dps8_cpu.c int con_unit_idx = check_attn_key ();