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Add the sync match interrupt.

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Albeit that it doesn't yet unblock disk DMA.
This commit is contained in:
Thomas Harte 2021-10-11 03:37:56 -07:00
parent ec3d5c0b32
commit 6acddfdb98
1 changed files with 7 additions and 3 deletions
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10
Machines/Amiga/Chipset.cpp
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@ -905,8 +905,12 @@ void Chipset::Sprite::set_image_data(int slot, uint16_t value) {
// MARK: - Disk.
void Chipset::DiskDMA::enqueue(uint16_t value, bool matches_sync) {
// TODO: handle matches_sync.
(void)matches_sync;
if(matches_sync) {
chipset_.posit_interrupt(InterruptFlag::DiskSyncMatch);
// TODO: start buffering from the next word onwards if
// syncing is enabled.
}
// LOG("In: " << buffer_write_);
@ -935,8 +939,8 @@ bool Chipset::DiskDMA::advance() {
if(length_ && buffer_read_ != buffer_write_) {
ram_[pointer_[0] & ram_mask_] = buffer_[buffer_read_ & 3];
++pointer_[0];
--length_;
++buffer_read_;
--length_;
if(!length_) {
chipset_.posit_interrupt(InterruptFlag::DiskBlock);