check_attn_key     26 src/dps8/dps8_console.h int check_attn_key (void);
check_attn_key   1936 src/dps8/dps8_cpu.c         int con_unit_idx = check_attn_key ();
check_attn_key   2281 src/dps8/dps8_cpu.c         int con_unit_idx = check_attn_key ();