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i86, i186, i286: Don't automatically clear IRQ state upon acknowledgment

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i86, i386, v20, v30 & related CPUs: Add exception hook for debugger gex command
This commit is contained in:
AJR 2020-05-02 17:43:41 -04:00
parent e0a5fca0d5
commit e9fe64ecdb
3 changed files with 5 additions and 6 deletions
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6
src/devices/cpu/i86/i86.cpp
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@ -577,12 +577,8 @@ void i8086_common_cpu_device::interrupt(int int_num, int trap)
m_TF = m_IF = 0; m_TF = m_IF = 0;
if (int_num == -1) if (int_num == -1)
{
int_num = standard_irq_callback(0); int_num = standard_irq_callback(0);
debugger_exception_hook(int_num);
m_irq_state = CLEAR_LINE;
m_pending_irq &= ~INT_IRQ;
}
m_easeg = CS; m_easeg = CS;
uint16_t dest_off = read_word(int_num * 4 + 0); uint16_t dest_off = read_word(int_num * 4 + 0);

3
src/devices/cpu/nec/nec.cpp
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@ -323,7 +323,8 @@ void nec_common_device::nec_interrupt(unsigned int_num, int/*INTSOURCES*/ source
m_MF = 1; m_MF = 1;
if (source == INT_IRQ) /* get vector */ if (source == INT_IRQ) /* get vector */
int_num = (standard_irq_callback)(0); int_num = standard_irq_callback(0);
debugger_exception_hook(int_num);
dest_off = read_mem_word(int_num*4); dest_off = read_mem_word(int_num*4);
dest_seg = read_mem_word(int_num*4+2); dest_seg = read_mem_word(int_num*4+2);

2
src/devices/cpu/nec/v25.cpp
View File

@ -263,6 +263,8 @@ void v25_common_device::nec_interrupt(unsigned int_num, int /*INTSOURCES*/ sourc
break; break;
} }
debugger_exception_hook(int_num);
dest_off = read_mem_word(int_num*4); dest_off = read_mem_word(int_num*4);
dest_seg = read_mem_word(int_num*4+2); dest_seg = read_mem_word(int_num*4+2);