RUN Changes

Made RUN an implied command that can pass parameters to the called program.

src/cli/cli.c

@@ -425,10 +425,8 @@ short cli_exec(short channel, char * command, int argc, char * argv[]) {
         }
     }
 
-    // Built in command not found..
-    // TODO: search the current drive for an executable file
-    sys_chan_write(channel, cmd_not_found, strlen(cmd_not_found));
-    return -1;
+    /* No built-in command that matched... try to run a binary file */
+    return cmd_run(channel, argc, argv);
 }
 
 char * strtok_r(char * source, const char * delimiter, char ** saveptr) {

src/cli/dos_cmds.c

@@ -1,4 +1,5 @@
 #include <ctype.h>
+#include <stdio.h>
 #include <string.h>
 
 #include "syscalls.h"
@@ -153,16 +154,21 @@ short cmd_testcreate(short screen, int argc, char * argv[]) {
     }
 }
 
+/*
+ * Try to run a command from storage.
+ *
+ * Command name is in argv[0].
+ */
 short cmd_run(short screen, int argc, char * argv[]) {
     TRACE("cmd_run");
 
-    if (argc > 1) {
-        short result = proc_run(argv[1]);
-        if (result < 0) {
-            log_num(LOG_ERROR, "Unable to run: ", result);
-            return result;
-        }
+    short result = proc_run(argv[0], argc, argv);
+    if (result < 0) {
+        print(screen, "Command not found...\n");
+        return -1;
     }
+
+    return result;
 }
 
 /*
@@ -249,7 +255,7 @@ short cmd_pwd(short screen, int argc, char * argv[]) {
 /*
  * Rename a file or directory
  */
-extern short cmd_rename(short screen, int argc, char * argv[]) {
+short cmd_rename(short screen, int argc, char * argv[]) {
 
     TRACE("cmd_rename");
 

src/m68k/startup_m68k.s

@@ -351,11 +351,16 @@ h_trap_15:
 ; a1 = location to set user stack pointer
 ;
 _call_user:
-            move.l (4,a7),a0
-            move.l (8,a7),a1
+            move.l (4,a7),a0            ; Get the pointer to the code to start
+            move.l (8,a7),a1            ; Get the pointer to the process's stack
+            move.l (12,a7),d0           ; Get the number of parameters passed
+            move.l (16,a7),a2           ; Get the pointer to the parameters
             andi #$dfff,sr              ; Drop into user mode
             movea.l a1,a7               ; Set the stack
-            jmp (a0)
+
+            move.l a2,-(a7)             ; Push the parameters list
+            move.l d0,-(a7)             ; Push the parameter count
+            jsr (a0)
 
 _restart_cli:
             lea ___STACK,sp

src/proc.c

@@ -10,7 +10,7 @@
 #include "log.h"
 #include "dev/fsys.h"
 
-static const long k_default_stack = 0x0000ffff;     /* For now... we're just going to put the user stack under 0x00010000 */
+static const long k_default_stack = 0x00010000;     /* For now... we're just going to put the user stack under 0x00010000 */
 static int g_proc_result;
 
 /*
@@ -18,7 +18,7 @@ static int g_proc_result;
  */
 extern void restart_cli();
 
-extern void call_user(long start, long stack);
+extern void call_user(long start, long stack, int argc, char * argv[]);
 
 /*
  * Start a user mode process
@@ -26,15 +26,17 @@ extern void call_user(long start, long stack);
  * Inputs:
  * start = the address to start execution
  * stack = the location to start the user mode stack
+ * argc = the number of parameters
+ * argv = the array of parameters
  */
-void proc_exec(long start, long stack) {
+void proc_exec(long start, long stack, int argc, char * argv[]) {
     TRACE("proc_exec");
 
     log_num(LOG_INFO, "proc_exec start: ", start);
     log_num(LOG_INFO, "proc_exec stack: ", stack);
 
     g_proc_result = 0;
-    call_user(start, stack);
+    call_user(start, stack, argc, argv);
 }
 
 /*
@@ -63,11 +65,13 @@ int proc_get_result() {
  *
  * Inputs:
  * path = the path to try to load
+ * argc = the number of parameters
+ * argv = the array of parameters
  *
  * Returns:
  * returns an error code on failure, will not return on success
  */
-short proc_run(const char * path) {
+short proc_run(const char * path, int argc, char * argv[]) {
 
     TRACE("proc_run");
 
@@ -79,7 +83,7 @@ short proc_run(const char * path) {
     short result = fsys_load(path, 0, &start);
     if (result == 0) {
         if (start != 0) {
-            proc_exec(start, k_default_stack);
+            proc_exec(start, k_default_stack, argc, argv);
         } else {
             log_num(LOG_ERROR, "Couldn't execute file: ", result);
             return ERR_NOT_EXECUTABLE;

src/proc.h

@@ -15,8 +15,10 @@
  * Inputs:
  * start = the address to start execution
  * stack = the location to start the user mode stack
+ * argc = the number of parameters
+ * argv = the array of parameters
  */
-extern void proc_exec(long start, long stack);
+extern void proc_exec(long start, long stack, int argc, char * argv[]);
 
 /*
  * Quit the current user process
@@ -39,10 +41,12 @@ extern int proc_get_result();
  *
  * Inputs:
  * path = the path to try to load
+ * argc = the number of parameters
+ * argv = the array of parameters
  *
  * Returns:
  * returns an error code on failure, will not return on success
  */
-extern short proc_run(const char * path);
+extern short proc_run(const char * path, int argc, char * argv[]);
 
 #endif