Module control 

Emulates the principal central components of the TX-2.

TX-2 Functionality implemented in this module

The functionality of this module is conceptually similar to the CPU of a modern computer, although on the real TX-2 these functions were split across several identifiably separate units (“elements”).

Functions of the In/Out Element

Other functions of the In/Out element are implemented in the io module.

Functions of the Exchange Element

• Remember the setting of the TSP (Toggle Start Point) register

Modules

op_configuration 🔒

Implementations of “Configuration Memory Class” opcodes

op_index 🔒

Implementations of “Index Register Class” opcodes

op_io 🔒

op_jump 🔒

op_loadstore 🔒

Implementations of “Load-Store Class” opcodes

timing 🔒

Instruction and event timing.

trap 🔒

Emulates the trap circuit and I/O Unit 42. See TX-2 User Handbook Chapter 4 section 42.

Structs

ControlRegisters

Registers from various elements of the TX-2.

ControlUnit

ControlUnit simulates the operation of the Control Element of the TX-2 computer.

OpcodeResult 🔒

SequenceFlags 🔒

Flags represent requests to run for instruction sequences (today one might describe these as threads). Some sequences are special:

Enums

ConfigurationMemorySetup

PanicOnUnmaskedAlarm

ProgramCounterChange 🔒

ResetMode

RunMode

Functions

ones_of_value_as_vec 🔒

please_poll_soon 🔒

sign_extend_index_value 🔒