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✨ Reversible IO for emulator #265

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✨ Reversible IO for emulator #265

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6cd1891
Emulate reversible digital pin primitives
tolauwae Aug 29, 2024
9f00d27
fixup! Emulate reversible digital pin primitives
tolauwae Sep 27, 2024
e25471e
fixup! fixup! Emulate reversible digital pin primitives
tolauwae Oct 26, 2024
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54 changes: 47 additions & 7 deletions src/Primitives/emulated.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -387,23 +387,63 @@ def_prim(http_post, tenToOneU32) {
return true;
}

#define NUM_DIGITAL_PINS 25
uint32_t PINS[NUM_DIGITAL_PINS] = {};
uint8_t MODES[NUM_DIGITAL_PINS] = {};

def_prim(chip_pin_mode, twoToNoneU32) {
debug("EMU: chip_pin_mode(%u,%u) \n", arg1.uint32, arg0.uint32);
uint8_t pin = arg1.uint32;
uint8_t val = arg0.uint32;
debug("EMU: chip_pin_mode(%u,%u) \n", pin, val);
if (pin < NUM_DIGITAL_PINS) {
MODES[pin] = val;
}
pop_args(2);
return true;
return pin < NUM_DIGITAL_PINS;
}

def_prim(chip_digital_write, twoToNoneU32) {
debug("EMU: chip_digital_write(%u,%u) \n", arg1.uint32, arg0.uint32);
uint8_t pin = arg1.uint32;
uint8_t val = arg0.uint32;
debug("EMU: chip_digital_write(%u,%u) \n", pin, val);
bool writable = pin < NUM_DIGITAL_PINS && MODES[pin] == 0x02;
if (writable) {
PINS[pin] = val;
}
pop_args(2);
return true;
return writable;
}

def_prim_reverse(chip_digital_write) {
for (IOStateElement state : external_state) {
if (!state.output) {
continue;
}

if (state.key[0] == 'p') {
invoke_primitive(m, "chip_digital_write", stoi(state.key.substr(1)),
(uint32_t)state.value);
}
}
}

def_prim_serialize(chip_digital_write) {
for (int pin = 0; pin < NUM_DIGITAL_PINS; pin++) {
auto *state = new IOStateElement();
state->key = "p" + std::to_string(pin);
state->output = MODES[pin] == 0x01;
state->value = PINS[pin];
external_state.push_back(state);
}
}

def_prim(chip_digital_read, oneToOneU32) {
// uint8_t pin = arg0.uint32; // never used in emulator
uint8_t pin = arg0.uint32;
pop_args(1);
pushUInt32(1); // HIGH
return true;
if (pin < NUM_DIGITAL_PINS) {
pushUInt32(PINS[pin]);
}
return pin < NUM_DIGITAL_PINS;
}

def_prim(chip_analog_read, oneToOneI32) {
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