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dbdma: Implement branch taken flag.

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joevt 2024-03-20 09:53:31 -07:00 committed by dingusdev
parent 96875a1278
commit 7ffafdc007
1 changed files with 6 additions and 3 deletions
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9
devices/common/dbdma.cpp
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@ -170,9 +170,7 @@ void DMAChannel::finish_cmd() {
return; return;
} }
if (res.is_writable) this->ch_stat &= ~CH_STAT_BT;
WRITE_WORD_LE_A(&cmd_desc[14], this->ch_stat | CH_STAT_ACTIVE);
this->ch_stat &= ~CH_STAT_FLUSH;
// react to cmd.b (branch) bits // react to cmd.b (branch) bits
if (cmd_desc[2] & 0xC) { if (cmd_desc[2] & 0xC) {
@ -187,12 +185,17 @@ void DMAChannel::finish_cmd() {
if (cond) { if (cond) {
this->cmd_ptr = READ_DWORD_LE_A(&cmd_desc[8]); this->cmd_ptr = READ_DWORD_LE_A(&cmd_desc[8]);
branch_taken = true; branch_taken = true;
this->ch_stat |= CH_STAT_BT;
} }
} }
this->update_irq(); this->update_irq();
} }
if (res.is_writable)
WRITE_WORD_LE_A(&cmd_desc[14], this->ch_stat | CH_STAT_ACTIVE);
this->ch_stat &= ~(CH_STAT_FLUSH | CH_STAT_BT);
// all INPUT and OUTPUT commands including LOAD_QUAD and STORE_QUAD update cmd.resCount // all INPUT and OUTPUT commands including LOAD_QUAD and STORE_QUAD update cmd.resCount
if (this->cur_cmd < DBDMA_Cmd::NOP && res.is_writable) { if (this->cur_cmd < DBDMA_Cmd::NOP && res.is_writable) {
WRITE_WORD_LE_A(&cmd_desc[12], this->queue_len); WRITE_WORD_LE_A(&cmd_desc[12], this->queue_len);