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updated mains macros

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hugo LAMY
2025-03-06 10:26:39 +01:00
parent 3271fbf96d
commit 4a9fe6cd95
6 changed files with 254 additions and 242 deletions
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139
module00/ex02/main.c
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@@ -1,101 +1,66 @@
#include <avr/io.h>
#include <util/delay.h>
// test with https://www.onlinegdb.com/online_c_compiler
// // V1
//
// // macro to extract port and bit from a single pin
// #define _PORT(pin) ((pin) >> 3)
// #define _BIT(pin) ((pin) & 0x07) // 0x07 is 00000111
//
// // helper macros for port name concatenation
// #define _CONCAT(a, b) a ## b
// #define PORT_REGISTER(pin) _CONCAT(PORT, _PORT(pin))
// #define DDR_REGISTER(pin) _CONCAT(DDR, _PORT(pin))
// #define PIN_REGISTER(pin) _CONCAT(PIN, _PORT(pin))
//
// // Macros to set/clear/toggle specific bit
// #define SET(REGISTER, PIN) REGISTER |= 1 << _BIT(PIN)
// #define CLEAR(REGISTER, PIN) REGISTER &= ~(1 << _BIT(PIN))
// #define TOGGLE(REGISTER, PIN) REGISTER ^= 1 << _BIT(PIN)
// #define MODE_OUTPUT(PIN) (DDR_REGISTER(PIN) |= 1 << _BIT(PIN))
// #define MODE_INPUT(PIN) (DDR_REGISTER(PIN) &= ~(1 << _BIT(PIN)))
//
// // Test and check macros
// #define TEST_PIN(PIN) (PIN_REGISTER(PIN) & (1 << _BIT(PIN)))
// #define IS_SET(PIN) (TEST(PIN) != 0)
// #define IS_CLEAR(PIN) (TEST(PIN) == 0)
//
// // Pin definitions
// #define D1 (0 + (1 << 3)) // Port B, bit 0
// #define D2 (1 + (1 << 3)) // Port B, bit 1
// #define D3 (2 + (1 << 3)) // Port B, bit 2
// #define D4 (4 + (1 << 3)) // Port B, bit 4
// #define SW1 (2 + (3 << 3)) // Port D, bit 2
// #define SW2 (4 + (3 << 3)) // Port D, bit 4
// stringify
#define STRINGIFY_HELPER(x) #x
#define STRINGIFY(x) STRINGIFY_HELPER(x)
// // V2
//
// // Define the ports
// #define PORT_B 0 // Port A (represented by 0)
// #define PORT_C 1 // Port B (represented by 1)
// #define PORT_D 2 // Port C (represented by 2)
//
// // Macros to extract the port and bit
// #define _PORT_INT(pin) ((pin) >> 3) // Extract the port
// #define _PORT(pin) \
// ((_PORT_INT(pin)) == PORT_B ? 'B' : \
// ((_PORT_INT(pin)) == PORT_C ? 'C' : \
// ((_PORT_INT(pin)) == PORT_D ? 'D' : \
// 'X')))
// #define _BIT(pin) ((pin) & 0x07) // Extract the bit
//
// // Macros to set/clear/toggle specific bit
// #define SET(REGISTER, PIN) REGISTER |= 1 << _BIT(PIN)
// #define CLEAR(REGISTER, PIN) REGISTER &= ~(1 << _BIT(PIN))
// #define TOGGLE(REGISTER, PIN) REGISTER ^= 1 << _BIT(PIN)
// #define MODE_OUTPUT(PIN) (_PORT(PIN) |= 1 << _BIT(PIN))
// #define MODE_INPUT(PIN) (_PORT(PIN) &= ~(1 << _BIT(PIN)))
//
// // Test and check macros
// #define TEST(PIN) (PIN_REGISTER(PIN) & (1 << _BIT(PIN)))
// #define IS_SET(PIN) (TEST(PIN) != 0)
// #define IS_CLEAR(PIN) (TEST(PIN) == 0)
//
// // Define each LED's port and bit using macros
// #define D1 (PORT_B << 3 | 0) // LED1 is on Port B, bit 0
// #define D2 (PORT_B << 3 | 1) // LED2 is on Port A, bit 1
// #define D3 (PORT_B << 3 | 2) // LED3 is on Port C, bit 2
// #define D4 (PORT_B << 3 | 4) // LED4 is on Port C, bit 4
// concatenate
#define CONCAT_HELPER(x, y) x ## y
#define CONCAT(x, y) CONCAT_HELPER(x, y)
// V0
// get argument
#define ARG_1(v1, v2) v1
#define ARG_2(v1, v2) v2
#define GET_PORT(args) ARG_1 args
#define GET_BIT(args) ARG_2 args
#define SET(REGISTER, BIT) REGISTER |= 1 << BIT
#define CLEAR(REGISTER, BIT) REGISTER &= ~(1 << BIT)
#define TEST(REGISTER, BIT) REGISTER & 1 << BIT
#define TEST_PIN(PORT, BIT) PIN ## PORT & 1 << BIT
#define TOGGLE(REGISTER, BIT) REGISTER ^= 1 << BIT
#define MODE_INPUT(PORT, BIT) CLEAR(DDR ## PORT, BIT)
#define MODE_OUTPUT(PORT, BIT) SET(DDR ## PORT, BIT)
#define IS_PIN_SET(PORT, BIT) (TEST_PIN(PORT, BIT)) == 0
#define IS_PIN_CLEAR(PORT, BIT) (TEST_PIN(PORT, BIT)) == 1
// actions on registers
#define SET(register, bit) register |= 1 << bit
#define CLEAR(register, bit) register &= ~(1 << bit)
#define TEST(register, bit) register & 1 << bit
#define TOGGLE(register, bit) register ^= 1 << bit
#define D1 0
#define D2 1
#define D3 2
#define D4 4
#define SW1 2
#define SW2 4
// actions on elements
#define SET_ELEM(elem) SET(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define CLEAR_ELEM(elem) CLEAR(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define TEST_ELEM(elem) TEST(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_ELEM(elem) TOGGLE(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define MODE_OUTPUT(elem) SET(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define MODE_INPUT(elem) CLEAR(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_PIN(elem) SET(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem))
#define TEST_PIN(elem) (TEST(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem)))
#define IS_PIN_SET(elem) (TEST_PIN(elem) == 0)
#define IS_PIN_CLEAR(elem) (TEST_PIN(elem) == 1)
// bits
#define D1 0
#define D2 1
#define D3 2
#define D4 4
#define SW1 2
#define SW2 4
// elements (port, bit)
#define LED1 (B, D1)
#define LED2 (B, D2)
#define LED3 (B, D3)
#define LED4 (B, D4)
#define BUTTON1 (D, SW1)
#define BUTTON2 (D, SW2)
#define BUTTON(id)
// END MACROS
int main()
{
MODE_OUTPUT(B, D1);
MODE_INPUT(D, SW1);
MODE_OUTPUT(LED1);
MODE_INPUT(BUTTON1);
while(1) {
if (IS_PIN_SET(D, SW1)) {
SET(PORTB, D1);
if (IS_PIN_SET(BUTTON1)) {
SET_ELEM(LED1);
} else {
CLEAR(PORTB, D1);
CLEAR_ELEM(LED1);
}
}
return 0;