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Log first unhandled port.

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This commit is contained in:
Thomas Harte 2023-11-16 13:02:35 -05:00
parent 25f0a373f3
commit 095359017f
1 changed files with 31 additions and 11 deletions
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42
Machines/PCCompatible/PCCompatible.cpp
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@ -154,6 +154,13 @@ struct Memory {
// Accesses an address based on physical location. // Accesses an address based on physical location.
template <typename IntT, AccessType type> template <typename IntT, AccessType type>
typename InstructionSet::x86::Accessor<IntT, type>::type access(uint32_t address) { typename InstructionSet::x86::Accessor<IntT, type>::type access(uint32_t address) {
// TODO: send writes to the ROM area off to nowhere.
// if constexpr (is_writeable(type)) {
// if(address >= 0xc'0000) {
//
// }
// }
// Dispense with the single-byte case trivially. // Dispense with the single-byte case trivially.
if constexpr (std::is_same_v<IntT, uint8_t>) { if constexpr (std::is_same_v<IntT, uint8_t>) {
return memory[address]; return memory[address];
@ -267,18 +274,31 @@ struct Memory {
uint16_t write_back_value_; uint16_t write_back_value_;
}; };
struct IO { class IO {
template <typename IntT> void out([[maybe_unused]] uint16_t port, [[maybe_unused]] IntT value) { public:
if constexpr (std::is_same_v<IntT, uint8_t>) { template <typename IntT> void out([[maybe_unused]] uint16_t port, [[maybe_unused]] IntT value) {
printf("Unhandled out: %02x to %04x\n", value, port); switch(port) {
} else { default:
printf("Unhandled out: %04x to %04x\n", value, port); if constexpr (std::is_same_v<IntT, uint8_t>) {
printf("Unhandled out: %02x to %04x\n", value, port);
} else {
printf("Unhandled out: %04x to %04x\n", value, port);
}
break;
// On the XT the NMI can be masked by setting bit 7 on I/O port 0xA0.
case 0x00a0:
printf("TODO: NMIs %s\n", (value & 0x80) ? "masked" : "unmasked");
break;
}
} }
} template <typename IntT> IntT in([[maybe_unused]] uint16_t port) {
template <typename IntT> IntT in([[maybe_unused]] uint16_t port) { printf("Unhandled in: %04x\n", port);
printf("Unhandled in: %04x\n", port); return IntT(~0);
return IntT(~0); }
}
private:
}; };
class FlowController { class FlowController {