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Add callout for tracking segment register changes.

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This commit is contained in:
Thomas Harte 2023-11-10 22:22:32 -05:00
parent 79b126e6bb
commit e61dc0466f
2 changed files with 11 additions and 8 deletions
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4
InstructionSets/x86/Implementation/PerformImplementation.hpp
View File

@ -256,7 +256,7 @@ template <
case Operation::MOV:
Primitive::mov<IntT>(destination_w(), source_r());
if constexpr (std::is_same_v<IntT, uint16_t>) {
context.registers.did_update(instruction.destination.source());
context.registers.did_update(instruction.destination().source());
}
break;
@ -327,7 +327,7 @@ template <
case Operation::POP:
destination_w() = Primitive::pop<IntT, false>(context);
if constexpr (std::is_same_v<IntT, uint16_t>) {
context.registers.did_update(instruction.destination.source());
context.registers.did_update(instruction.destination().source());
}
break;
case Operation::PUSH:

15
OSBindings/Mac/Clock SignalTests/8088Tests.mm
View File

@ -249,15 +249,13 @@ struct Memory {
}
uint32_t segment_base(InstructionSet::x86::Source segment) {
uint32_t physical_address;
using Source = InstructionSet::x86::Source;
switch(segment) {
default: physical_address = registers_.ds_; break;
case Source::ES: physical_address = registers_.es_; break;
case Source::CS: physical_address = registers_.cs_; break;
case Source::SS: physical_address = registers_.ss_; break;
default: return registers_.ds_base_;
case Source::ES: return registers_.es_base_;
case Source::CS: return registers_.cs_base_;
case Source::SS: return registers_.ss_base_;
}
return physical_address << 4;
}
uint32_t address(InstructionSet::x86::Source segment, uint16_t offset) {
@ -556,6 +554,11 @@ struct FailedExecution {
registers.ss_ = [value[@"ss"] intValue];
registers.ip_ = [value[@"ip"] intValue];
registers.did_update(Registers::Source::ES);
registers.did_update(Registers::Source::CS);
registers.did_update(Registers::Source::DS);
registers.did_update(Registers::Source::SS);
const uint16_t flags_value = [value[@"flags"] intValue];
flags.set(flags_value);