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Made an attempt at implementing the loopbacks necessary for diagnostics.

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This commit is contained in:
Thomas Harte 2016-10-13 21:47:12 -04:00
parent 41e7eff6c8
commit 8867ad647c
1 changed files with 15 additions and 0 deletions
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15
Machines/Oric/Oric.hpp
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@ -27,6 +27,21 @@ namespace Oric {
class VIA: public MOS::MOS6522<VIA>, public MOS::MOS6522IRQDelegate {
public:
using MOS6522IRQDelegate::set_interrupt_status;
void set_port_output(Port port, uint8_t value, uint8_t direction_mask) {
port_outputs[port] = value;
if(port)
set_control_line_input(port, Line::One, (value << 1)&value&128);
}
uint8_t get_port_input(Port port) {
if(port)
{
return port_outputs[0];
}
else
return (uint8_t)((port_outputs[port] >> 4) | (port_outputs[port] << 4));
}
uint8_t port_outputs[2];
};
class Machine: