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upd765: Handle modes a little more, NeXT can boot from floppy again [O. Galibert]

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This commit is contained in:
Olivier Galibert 2013-03-30 10:37:57 +00:00
parent 12d502e32e
commit fa4ec75c3f
1 changed files with 3 additions and 2 deletions
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5
src/emu/machine/upd765.c
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@ -96,6 +96,7 @@ upd765_family_device::upd765_family_device(const machine_config &mconfig, device
select_connected = true; select_connected = true;
external_ready = false; external_ready = false;
dor_reset = 0x00; dor_reset = 0x00;
mode = MODE_AT;
} }
void upd765_family_device::set_ready_line_connected(bool _ready) void upd765_family_device::set_ready_line_connected(bool _ready)
@ -110,7 +111,7 @@ void upd765_family_device::set_select_lines_connected(bool _select)
void upd765_family_device::set_mode(int _mode) void upd765_family_device::set_mode(int _mode)
{ {
// TODO mode = _mode;
} }
void upd765_family_device::setup_intrq_cb(line_cb cb) void upd765_family_device::setup_intrq_cb(line_cb cb)
@ -1944,7 +1945,7 @@ void upd765_family_device::check_irq()
{ {
bool old_irq = cur_irq; bool old_irq = cur_irq;
cur_irq = data_irq || other_irq || internal_drq; cur_irq = data_irq || other_irq || internal_drq;
cur_irq = cur_irq && (dor & 4) && (dor & 8); cur_irq = cur_irq && (dor & 4) && (mode != MODE_AT || (dor & 8));
if(cur_irq != old_irq && !intrq_cb.isnull()) { if(cur_irq != old_irq && !intrq_cb.isnull()) {
logerror("%s: irq = %d\n", tag(), cur_irq); logerror("%s: irq = %d\n", tag(), cur_irq);
intrq_cb(cur_irq); intrq_cb(cur_irq);