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cpu/z80/z80.cpp: Move busrq check to service step (#12475)

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holub 2024-06-12 17:02:48 -04:00 committed by GitHub
parent 738bd07bc4
commit d06a1d8b3f
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2 changed files with 8 additions and 8 deletions
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2
src/devices/cpu/z80/z80.cpp
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@ -809,7 +809,7 @@ void nsc800_device::do_op()
****************************************************************************/
void z80_device::execute_run()
{
if (m_wait_state || m_busrq_state)
if (m_wait_state)
{
m_icount = 0; // stalled
return;

14
src/devices/cpu/z80/z80.lst
View File

@ -135,13 +135,10 @@ macro retn
macro z80n:retn
m_out_retn_seen_cb(0);
call pop
if (m_stackless)
{
if (m_stackless) {
m_pc.b.l = m_in_nextreg_cb(0xc2);
m_pc.b.h = m_in_nextreg_cb(0xc3);
}
else
{
} else {
PC = TDAT;
}
LOGINT("RETN m_iff1:%d m_iff2:%d\n", m_iff1, m_iff2); WZ = PC; m_iff1 = m_iff2;
@ -501,14 +498,17 @@ macro ncs800:check_interrupts
# ROP
##########################################################
ffff
if (m_busrq_state) {
m_icount = 0;
return;
}
call check_interrupts
m_after_ei = false;
m_after_ldair = false;
PRVPC = PCD;
debugger_instruction_hook(PCD);
call rop
if (m_halt)
{
if (m_halt) {
PC--;
m_ref = 0xffff00;
return;