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read_pages_ can be const.

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This commit is contained in:
Thomas Harte 2020-10-21 21:16:42 -04:00
parent a5dcab4092
commit 62231708d7
1 changed files with 7 additions and 7 deletions
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14
Machines/Apple/AppleII/AppleII.cpp
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@ -37,6 +37,7 @@ namespace II {
#define is_iie() ((model == Analyser::Static::AppleII::Target::Model::IIe) || (model == Analyser::Static::AppleII::Target::Model::EnhancedIIe))
template <Analyser::Static::AppleII::Target::Model model> class ConcreteMachine:
public Apple::II::Machine,
public MachineTypes::TimedMachine,
public MachineTypes::ScanProducer,
public MachineTypes::AudioProducer,
@ -46,7 +47,6 @@ template <Analyser::Static::AppleII::Target::Model model> class ConcreteMachine:
public CPU::MOS6502::BusHandler,
public Inputs::Keyboard,
public Configurable::Device,
public Apple::II::Machine,
public Activity::Source,
public Apple::II::Card::Delegate {
private:
@ -175,7 +175,7 @@ template <Analyser::Static::AppleII::Target::Model model> class ConcreteMachine:
to paging every 6502 page of memory independently. It makes the paging events more expensive,
but hopefully more clear.
*/
uint8_t *read_pages_[256]; // each is a pointer to the 256-block of memory the CPU should read when accessing that page of memory
const uint8_t *read_pages_[256]; // each is a pointer to the 256-block of memory the CPU should read when accessing that page of memory
uint8_t *write_pages_[256]; // as per read_pages_, but this is where the CPU should write. If a pointer is nullptr, don't write.
void page(int start, int end, uint8_t *read, uint8_t *write) {
for(int position = start; position < end; ++position) {
@ -227,13 +227,13 @@ template <Analyser::Static::AppleII::Target::Model model> class ConcreteMachine:
bool alternative_zero_page_ = false;
void set_zero_page_paging() {
if(alternative_zero_page_) {
read_pages_[0] = aux_ram_;
write_pages_[0] = aux_ram_;
} else {
read_pages_[0] = ram_;
write_pages_[0] = ram_;
}
read_pages_[1] = read_pages_[0] + 256;
write_pages_[0] = read_pages_[0];
write_pages_[1] = read_pages_[1];
write_pages_[1] = write_pages_[0] + 256;
read_pages_[0] = write_pages_[0];
read_pages_[1] = write_pages_[1];
}
bool read_auxiliary_memory_ = false;