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Result of typing H{elp} into SIMH 1401 simulator
To see what version
sim> show version
IBM 1401 simulator V3.3-1 [32b data, 32b addresses, no Ethernet]
sim> show versionsim> help
sim>
r{eset} {ALL|<device>} reset simulator e{xamine} <list> examine menory or registers ie{xamine} <list> interactive examine menory or registers d{eposit} <list> <val> deposit in memory or registers id{eposit} <list> deposit in memory or registers ev{aluate} <expr> evaluate symbolic expression ru{n} {new PC} reset and start simulation go {new PC} start simulation s{tep} {n} simulate n instructions c{ont} continue simulation b{oot} <unit> bootstrap unit br{eak} <list> set breakpoints nobr{eak} <list> clear breakpoints at{tach} <unit> <file> attach file to simulated unit det{ach} <unit> detach file frim simulated unit as{sign} <device> <name> assign logical name for device dea{ssign} <device> deassign logical name for device sa{ve} <file> save simulator to file rest{ore}|ge{t} <file> restore simulator from file l{oad} <file> {<args>} load binary file du{mp} <file> {<args>} dump binary file exi{t}|q{uit}|by{e} exit from simulation set console arg{,arg...} set console options set <dev> OCT|DEC|HEX set device display radix set <dev> ENABLED enable device set <dev> DISABLED disable device set <dev> DEBUG={arg} set device debug flags set <dev> NODEBUG={arg} clear device debug flags set <dev> arg{,arg...} set device parameters set <unit> ENABLED enable unit set <unit> DISABLED disable unit set <unit> arg{,arg...} set unit parameters sh{ow} br{eak} <list> show breakpoints on address list sh{ow} con{figuration} show configuration sh{ow} cons{ole} {arg} show console options sh{ow} dev{ices} show devices sh{ow} m{odifiers} show modifiers sh{ow} n{ames} show logical names sh{ow} q{ueue} show event queue sh{ow} ti{me} show simulated time sh{ow} ve{rsion} show simulator version sh{ow} <dev> RADIX show device display radix sh{ow} <dev> DEBUG show device debug flags sh{ow} <dev> MODIFIERS show device modifiers sh{ow} <dev> NAMES show device logical name sh{ow} <dev> {arg,arg...} show device parameters sh{ow} <unit> {arg,arg...} show unit parameters do <file> {arg,arg...} process command file echo <string> display h{elp} type this message h{elp} <command> type help for command ! execute local command interpreter ! <command> execute local host command