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Add restart_operation_fetch, to aid with testing.

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This commit is contained in:
Thomas Harte 2022-06-18 16:25:57 -04:00
parent b62f484d93
commit 586ef4810b
2 changed files with 15 additions and 1 deletions
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9
Processors/65816/65816.hpp
View File

@ -45,7 +45,8 @@ class ProcessorBase: protected ProcessorStorage {
inline bool get_is_resetting() const;
/*!
Returns the current state of all lines not ordinarily pushed to the BusHandler.
Returns the current state of all lines not ordinarily pushed to the BusHandler,
as listed in the ExtendedBusOutput enum.
*/
inline int get_extended_bus_output();
@ -54,6 +55,12 @@ class ProcessorBase: protected ProcessorStorage {
*/
inline bool is_jammed() const;
/*!
FOR TESTING PURPOSES ONLY: forces the processor into a state where
the next thing it intends to do is fetch a new opcode.
*/
inline void restart_operation_fetch();
void set_value_of_register(Register r, uint16_t value);
uint16_t get_value_of_register(Register r) const;
};

7
Processors/65816/Implementation/65816Implementation.hpp
View File

@ -1065,3 +1065,10 @@ int ProcessorBase::get_extended_bus_output() {
(registers_.mx_flags[1] ? ExtendedBusOutput::IndexSize : 0) |
(registers_.emulation_flag ? ExtendedBusOutput::Emulation : 0);
}
void ProcessorBase::restart_operation_fetch() {
// Find a OperationMoveToNextProgram, so that the main loop can make
// relevant decisions.
next_op_ = micro_ops_.data();
while(*next_op_ != OperationMoveToNextProgram) ++next_op_;
}