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Attempts to route out modifier state.

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This commit is contained in:
Thomas Harte 2021-02-14 21:15:31 -05:00
parent a791680e6f
commit 52cf15c3e6
3 changed files with 28 additions and 5 deletions
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11
Machines/Apple/AppleIIgs/ADB.cpp
View File

@ -199,8 +199,7 @@ void GLU::set_port_output(int port, uint8_t value) {
}
} break;
case 3:
// printf("IIe KWS: %d\n", (value >> 6)&3);
// printf("ADB data line output: %d\n", (value >> 3)&1);
modifier_state_ = value;
// Output is inverted respective to input; the microcontroller
// sets a value of '1' in order to pull the ADB bus low.
@ -211,6 +210,14 @@ void GLU::set_port_output(int port, uint8_t value) {
}
}
bool GLU::get_command_button() const {
return modifier_state_ & 0x20;
}
bool GLU::get_option_button() const {
return modifier_state_ & 0x10;
}
uint8_t GLU::get_port_input(int port) {
switch(port) {
case 0: return register_latch_;

5
Machines/Apple/AppleIIgs/ADB.hpp
View File

@ -41,6 +41,9 @@ class GLU: public InstructionSet::M50740::PortHandler {
void run_for(Cycles cycles);
bool get_command_button() const;
bool get_option_button() const;
private:
InstructionSet::M50740::Executor executor_;
@ -59,6 +62,8 @@ class GLU: public InstructionSet::M50740::PortHandler {
Apple::ADB::Bus bus_;
size_t controller_id_;
uint8_t modifier_state_ = 0;
// For now, attach only a keyboard and mouse.
Apple::ADB::Mouse mouse_;
Apple::ADB::Keyboard keyboard_;

17
Machines/Apple/AppleIIgs/AppleIIgs.cpp
View File

@ -514,9 +514,20 @@ class ConcreteMachine:
*value = rom_[rom_.size() - 65536 + address_suffix];
break;
// Analogue inputs. All TODO.
case Read(0xc060): case Read(0xc061): case Read(0xc062): case Read(0xc063):
// Joystick buttons (and keyboard modifiers).
// Analogue inputs. Joystick parts are TODO.
case Read(0xc061):
*value = adb_glu_->get_command_button() ? 0x80 : 0x00;
is_1Mhz = true;
break;
case Read(0xc062):
*value = adb_glu_->get_option_button() ? 0x80 : 0x00;
is_1Mhz = true;
break;
case Read(0xc060):
case Read(0xc063):
// Joystick buttons.
*value = 0x00;
is_1Mhz = true;
break;