Changes
Red marker is at start of IRQ acknowledge cycle which is immediately seen by the ASIC (INTn goes up) : vector is 0x06
Purple marker is at the effective cycle where the Z80 sample the vector, and where the ASIC sees a second acknowledge. Vector is now 0...
Red marker is at start of IRQ acknowledge cycle which is immediately seen by the ASIC (INTn goes up) : vector is 0x06
Purple marker is at the effective cycle where the Z80 sample the vector, and where the ASIC sees a second acknowledge. Vector is now 0x04.
Purple marker is at the effective cycle where the Z80 sample the vector, and where the ASIC sees a second acknowledge. Vector is now 0x04.
