SUBS

SUBS is on Disk 1. It is loaded into $0800–$2000 by INIT very early on.

It contains subroutines shared by multiple files.

$0800 / $0AB5 — get a keypress

$081B / $0FD2 — print the following null-terminated string via the OS

$081E / $0F81 — set the current cursor location to the X, Y index registers then display the following null-terminated string (as in $0F85)

$0821 / $0F85 — display the following null-terminated string at the current cursor location

$0824 / $0FA9 — display the single character in the accumulator at the current cursor location

$082D / $1002 — set up $FE/$FF to point to the right character data vector based on $D4

$0833 / $107C — display a decimal-encoded byte (one decimal digit per nibble) in the accumulator at the current cursor location

$0842 / $1868 — request disk switch

$0845 / $10C3 — display player stats

$0866 / $108B — display the single digit number in the accumulator at the current cursor location

$0872 / $11E2 — display direction faced and level in dungeon

$1263 — persist the current cursor location

$126E — restore the saved cursor location and return

$104A — display name of character in slot $D4

$150C — process and buffer any keypress

SUBS

Table of contents