vsm2

commit f4e58ce4ccf22ea7e101fa052cb52496addf1b3c
Author: prenev <an2qzavok@gmail.com>
Date:   Sat,  9 Jul 2022 14:38:24 +0300

first commit

Diffstat:
A
Makefile
 | 
0

A
cell.h
 | 
9
+++++++++
A
main.c
 | 
0

A
mem.c
 | 
3
+++
A
mem.h
 | 
3
+++
A
proc.c
 | 
36
++++++++++++++++++++++++++++++++++++
A
proc.h
 | 
22
++++++++++++++++++++++

7 files changed, 73 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile
diff --git a/cell.h b/cell.h
@@ -0,0 +1,9 @@
+/* concerning memory units */
+
+typedef struct Cell Cell;
+
+struct Cell {
+	long n;
+	char *p;
+};
+
diff --git a/main.c b/main.c
diff --git a/mem.c b/mem.c
@@ -0,0 +1,3 @@
+#include "cell.h"
+#include "mem.h"
+
diff --git a/mem.h b/mem.h
@@ -0,0 +1,3 @@
+/* concerning the memory management */
+
+
diff --git a/proc.c b/proc.c
@@ -0,0 +1,36 @@
+#include "cell.h"
+#include "proc.h"
+
+Proc *
+proccreate(void)
+{
+	Proc * p;
+	p = malloc(sizeof(Proc));
+	p->pc = 0;
+	p->state = 0;
+	p->send = NULL;
+	p->recv = NULL;
+	return p;
+}
+
+/*
+Proc logic is:
+- send 'read' msg to mem
+- recv reply
+- exec
+- loop
+*/
+
+void
+procstep(Proc *p)
+{
+	switch (p->state) {
+	case PSError:
+	case PSWait:
+	case PSHalt:
+		return;
+	default:
+		p->state = PSError;
+	}
+}
+
diff --git a/proc.h b/proc.h
@@ -0,0 +1,22 @@
+/* concerning the unit of computation */
+
+enum {
+	PSHalt,
+	PSWait,
+	PSError,
+
+typedef struct Proc Proc;
+
+struct Proc {
+	int pc;
+	int state;
+	Cell st[256];
+	Cell rs[256];
+
+	void (*send)(void*);
+	void (*recv)(void*);
+);
+
+Proc * proccreate(void);
+void procstep(Proc *);
+