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Merge pull request #1595 from TomHarte/BBCSaving

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Ensure 1770 doesn't get stuck when writing.
This commit is contained in:
Thomas Harte
2025-10-03 16:51:24 -04:00
committed by GitHub
parent 3ca2f72184 05042b1859
commit 5885bdf0f8
1 changed files with 2 additions and 5 deletions
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Components/1770/1770.cpp
+2 -5
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@@ -135,12 +135,13 @@ void WD1770::run_for(const Cycles cycles) {
void WD1770::posit_event(const int new_event_type) {
#define WAIT_FOR_EVENT(mask) resume_point_ = __LINE__; interesting_event_mask_ = int(mask); return; case __LINE__:
#define RESUME_WAIT(mask) interesting_event_mask_ = int(mask); return;
#define WAIT_FOR_TIME(ms) resume_point_ = __LINE__; delay_time_ = ms * 8000; WAIT_FOR_EVENT(Event1770::Timer);
#define WAIT_FOR_BYTES(count) distance_into_section_ = 0; \
WAIT_FOR_EVENT(Event::Token); \
if(get_latest_token().type == Token::Byte) ++distance_into_section_; \
if(distance_into_section_ < count) { \
return; \
RESUME_WAIT(Event::Token); \
}
#define BEGIN_SECTION() switch(resume_point_) { default:
#define END_SECTION() (void)0; }
@@ -487,12 +488,8 @@ void WD1770::posit_event(const int new_event_type) {
WAIT_FOR_EVENT(Event::Token);
if(get_latest_token().type != Token::Byte) goto type2_read_byte;
data_ = get_latest_token().byte_value;
// Logger::info().append("Posting %02x", data_);
update_status([] (Status &status) {
status.lost_data |= status.data_request;
// if(status.lost_data) {
// Logger::info().append("Lost data");
// }
status.data_request = true;
});
distance_into_section_++;