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Edges almost up to an initially complete implementation.

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This commit is contained in:
Thomas Harte 2020-05-13 22:04:04 -04:00
parent 7c9d9ee048
commit 3709aa7555
2 changed files with 39 additions and 0 deletions
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30
Processors/Z80/State/State.cpp
View File

@ -35,6 +35,16 @@ State::State(const ProcessorBase &src): State() {
inputs.nmi = src.nmi_line_;
inputs.wait = src.wait_line_;
inputs.bus_request = src.bus_request_line_;
// Execution State.
execution_state.is_halted = src.halt_mask_ == 0x00;
execution_state.requests = src.request_status_;
execution_state.last_requests = src.last_request_status_;
execution_state.temp8 = src.temp8_;
execution_state.temp16 = src.temp16_.full;
execution_state.operation = src.operation_;
execution_state.flag_adjustment_history = src.flag_adjustment_history_;
execution_state.pc_increment = src.pc_increment_;
}
void State::apply(ProcessorBase &target) {
@ -62,6 +72,18 @@ void State::apply(ProcessorBase &target) {
target.nmi_line_ = inputs.nmi;
target.wait_line_ = inputs.wait;
target.bus_request_line_ = inputs.bus_request;
// Execution State.
target.halt_mask_ = execution_state.is_halted ? 0x00 : 0xff;
target.request_status_ = execution_state.requests;
target.last_request_status_ = execution_state.last_requests;
target.temp8_ = execution_state.temp8;
target.temp16_.full = execution_state.temp16;
target.operation_ = execution_state.operation;
target.flag_adjustment_history_ = execution_state.flag_adjustment_history;
target.pc_increment_ = execution_state.pc_increment;
// TODO: scheduled_program_counter_ and number_of_cycles_.
}
// Boilerplate follows here, to establish 'reflection'.
@ -97,6 +119,14 @@ State::Registers::Registers() {
State::ExecutionState::ExecutionState() {
if(needs_declare()) {
DeclareField(is_halted);
DeclareField(requests);
DeclareField(last_requests);
DeclareField(temp8);
DeclareField(operation);
DeclareField(temp16);
DeclareField(flag_adjustment_history);
DeclareField(pc_increment);
}
}

9
Processors/Z80/State/State.hpp
View File

@ -60,6 +60,15 @@ struct State: public Reflection::StructImpl<State> {
obviously doesn't.
*/
struct ExecutionState: public Reflection::StructImpl<ExecutionState> {
bool is_halted;
uint8_t requests;
uint8_t last_requests;
uint8_t temp8;
uint8_t operation;
uint16_t temp16;
unsigned int flag_adjustment_history;
uint16_t pc_increment;
ExecutionState();
} execution_state;