docs examples updated

.github/workflows/build.yml

@@ -2,7 +2,7 @@ name: Build picsim
 on: [push]
 jobs:
   build-macos:
-    runs-on: macos-11
+    runs-on: macos-12
     steps:
       - uses: actions/checkout@v2
       - name: Build

docs/examples/realtime/Makefile

@@ -0,0 +1,15 @@
+
+CC= gcc
+
+FLAGS= -ggdb -Wall  
+
+all: realtime 
+
+realtime: realtime.c
+	$(CC) $(FLAGS) realtime.c -o realtime -lpicsim
+
+clean:
+	rm -rf realtime 
+
+
+

docs/examples/realtime/realtime.c

@@ -0,0 +1,72 @@
+
+#include <picsim/picsim.h>
+#include <stdio.h>
+#include <sys/time.h>
+#include <signal.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+
+#define FREQ 4000000L
+
+static _pic pic1;
+
+void timer_callback(int signum)
+{
+  unsigned char PORTB;
+  static unsigned char PORTB_old;
+  const unsigned int nsteps = 100e-3 / (4.0 / pic1.freq);
+  for (int i = 0; i < nsteps; i++)
+  {
+    pic_step(&pic1);
+
+    //READ pins
+    // PORTB |= pic_get_pin(&pic1, 6);
+    // use direct access instead pic_get_pin to speed up
+
+    PORTB = 0;
+    PORTB |= pic1.pins[6 - 1].value;       // RB0
+    PORTB |= pic1.pins[7 - 1].value << 1;  // RB1
+    PORTB |= pic1.pins[8 - 1].value << 2;  // RB2
+    PORTB |= pic1.pins[9 - 1].value << 3;  // RB3
+    PORTB |= pic1.pins[10 - 1].value << 4; // RB4
+    PORTB |= pic1.pins[11 - 1].value << 5; // RB5
+    PORTB |= pic1.pins[12 - 1].value << 6; // RB6
+    PORTB |= pic1.pins[13 - 1].value << 7; // RB7
+
+    if (PORTB != PORTB_old)
+    {
+      PORTB_old = PORTB;
+      printf("PORTB =0x%02X\n", PORTB);
+    }
+  }
+}
+
+void ctrlc_callback(int signum)
+{
+  printf("end\n");
+  pic_end(&pic1);
+  exit(0);
+}
+
+int main()
+{
+
+  pic_init(&pic1, getprocbyname("PIC16F628A"),  "../../../examples/shift/shift.hex", 1, FREQ);
+
+  struct itimerval new_timer;
+  struct itimerval old_timer;
+
+  new_timer.it_value.tv_sec = 0;
+  new_timer.it_value.tv_usec = 100 * 1000; //100ms
+  new_timer.it_interval.tv_sec = 0;
+  new_timer.it_interval.tv_usec = 100 * 1000; //100ms
+
+  setitimer(ITIMER_REAL, &new_timer, &old_timer);
+  signal(SIGALRM, timer_callback);
+  signal(SIGINT, ctrlc_callback);
+
+  // Waitting forever
+  while (sleep(10))
+    ;
+}

docs/examples/simple_use/Makefile

@@ -9,8 +9,5 @@ all: picsim_simple.c
 clean:
 	rm -rf picsim_simple
 
-run:
-	picsim_simple P16F628A ../../examples/shift.hex
-
 
 

docs/examples/simple_use/picsim_simple.c

@@ -9,11 +9,11 @@ int main()
   _pic pic1; 
 
   //set serial port
-  pic_set_serial(&pic1,"/dev/tnt2",0,0,0);
+  pic_set_serial(&pic1,0, "/dev/tnt2",0,0,0);
   //pic_set_serial(&pic1,"COM2",0,0,0);
 
   //initialization and program loading
-  pic_init(&pic1, P16F628A, "../../../examples/shift/shift.hex",1,20e6);
+  pic_init(&pic1, getprocbyname("PIC16F628A"), "../../../examples/shift/shift.hex", 1, 4e6);
 
   //enable print messages of internal instruction execution (slow down the simulation speed) 
   pic1.print=1;
@@ -22,13 +22,13 @@ int main()
   for(i=0;i<1000;i++)
   {
       //execute one instruction cycle	   
-      pic_step();
+      pic_step(&pic1);
       //read digital pin 1
-      val=pic_get_pin(1);
+      val=pic_get_pin(&pic1, 1);
       //write digital pin 2
-      pic_set_pin(2, val);
+      pic_set_pin(&pic1, 2, val);
   }
 
   //free internal memory
-  pic_end();
+  pic_end(&pic1);
 }