X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=vm-dcpu16.c;h=b4798838328aeae8e7d9698c9af64c25b79014a3;hb=33efa05d43acf927c97daab10c00d1cbc2a7b9f6;hp=a6dc67dac2ca2f2212eac09ffe2836e46e913fc1;hpb=94be117719b907e351bb2bf1096f6195daecd2aa;p=dcpu16

diff --git a/vm-dcpu16.c b/vm-dcpu16.c
index a6dc67d..b479883 100644
--- a/vm-dcpu16.c
+++ b/vm-dcpu16.c
@@ -148,10 +148,57 @@ int file_load_(struct dcpu16 *vm, char *filename, DCPU16_WORD addr) {
     return 0;
 }
 
+/*  dump_ram_
+ *  print raw ram contents from start to stop
+ */
+static
+void dump_ram_(struct dcpu16 *vm, DCPU16_WORD start, DCPU16_WORD end) {
+    unsigned int i, j;
+    const unsigned int n = 8; /* words per line */
+
+    if (!vm) return;
+
+    for (i = start, j = 0; i <= end; i++, j++) {
+        if (j % n == 0)
+            printf("0x%04x:\t", i);
+        printf(" %04x%s", vm->ram[i], (j % n) == (n - 1) ? "\n" : "");
+    }
+    if ((j % n) != (n - 1))
+        printf("\n");
+}
+
+
+/*
+    print the current state of the machine
+    shows current cycle count, registers, and next instruction
+*/
+static
+void state_print_(struct dcpu16 *vm) {
+    unsigned int i;
+
+    if (!vm) return;
+
+    printf("  ");
+    for (i = 0; i < 8; i++)
+        printf("  %s:0x%04x", dcpu16_reg_names[i], vm->reg[i]);
+    printf("\n");
+
+    printf("(0x%08llx) %2s:0x%04x %2s:0x%04x %2s:0x%04x %2s:0x%04x [%2s]:",
+           vm->cycle_,
+           dcpu16_reg_names[DCPU16_REG_EX], vm->reg[DCPU16_REG_EX],
+           dcpu16_reg_names[DCPU16_REG_SP], vm->reg[DCPU16_REG_SP],
+           dcpu16_reg_names[DCPU16_REG_PC], vm->reg[DCPU16_REG_PC],
+           dcpu16_reg_names[DCPU16_REG_IA], vm->reg[DCPU16_REG_IA],
+           "PC");
+
+    dcpu16_disassemble_print(vm, vm->reg[DCPU16_REG_PC]);
+    printf("\n");
+}
+
 
 #ifdef HAVE_LIBVNCSERVER
 static struct dynamic_array rfbScreens_;
-/* wups, kbdAddEvent isn't null by default, so I guess track things externally */
+/* wups, kbdAddEvent isn't null by default, so I guess track associations externally */
 struct rfb_instance_ {
     rfbScreenInfoPtr screen;
     struct dcpu16_hw *attached_display;
@@ -163,6 +210,10 @@ static
 struct rfb_instance_ *rfbScreen_next_available_display_(struct dynamic_array *rfbScreens, int argc, char *argv[]) {
     size_t i;
     struct rfb_instance_ new_instance, *s;
+    struct packed_args_ {
+        int argc;
+        char **argv;
+    } parg = { argc, argv };
 
     fprintf(stderr, "DEBUG: rfbScreens->entries:%zu\n", rfbScreens->entries);
 
@@ -172,7 +223,11 @@ struct rfb_instance_ *rfbScreen_next_available_display_(struct dynamic_array *rf
             return s;
     }
 
-    new_instance.screen = lem1802_rfb_new(argc, argv);
+    if (dcpu16_hw_module_lem1802.ctl(NULL, "new_rfbScreen", &parg, &new_instance.screen)) {
+        fprintf(stderr, "failed to allocate new rfbScreen");
+        return NULL;
+    }
+
     new_instance.attached_display = NULL;
     new_instance.attached_keyboard = NULL;
     s = dynarray_add(rfbScreens, &new_instance);
@@ -184,6 +239,10 @@ static
 struct rfb_instance_ *rfbScreen_next_available_keyboard_(struct dynamic_array *rfbScreens, int argc, char *argv[]) {
     size_t i;
     struct rfb_instance_ new_instance, *s;
+    struct packed_args_ {
+        int argc;
+        char **argv;
+    } parg = { argc, argv };
 
     for (i = 0; i < rfbScreens->entries; i++) {
         s = (struct rfb_instance_ *)DYNARRAY_ITEM(*rfbScreens, i);
@@ -191,7 +250,11 @@ struct rfb_instance_ *rfbScreen_next_available_keyboard_(struct dynamic_array *r
             return s;
     }
 
-    new_instance.screen = lem1802_rfb_new(argc, argv);
+    if (dcpu16_hw_module_lem1802.ctl(NULL, "new_rfbScreen", &parg, &new_instance.screen)) {
+        fprintf(stderr, "failed to allocate new rfbScreen");
+        return NULL;
+    }
+
     new_instance.attached_display = NULL;
     new_instance.attached_keyboard = NULL;
     s = dynarray_add(rfbScreens, &new_instance);
@@ -308,7 +371,7 @@ COMMAND_IMPL(dump) {
         return 0;
     }
 
-    dcpu16_dump_ram(vm, addr[0], addr[1]);
+    dump_ram_(vm, addr[0], addr[1]);
 
     return 0;
 }
@@ -380,7 +443,7 @@ COMMAND_IMPL(step) {
         dcpu16_step(vm);
 
         if (count > 1 && opt_.verbose)
-            dcpu16_state_print(vm);
+            state_print_(vm);
     }
 
     return 0;
@@ -464,7 +527,7 @@ COMMAND_IMPL(run) {
 
         dcpu16_step(vm);
         if (opt_.verbose > 1)
-            dcpu16_state_print(vm);
+            state_print_(vm);
         else if (opt_.verbose) {
             dcpu16_disassemble_print(vm, vm->reg[DCPU16_REG_PC]);
             printf("\n");
@@ -590,9 +653,7 @@ COMMAND_HELP(display) {
     struct renderer_ {
         char *name;
         char *args;
-        int (*renderer)(void *, void *, size_t, size_t);
-    } *r;
-    char *name, *args;
+    } renderer;
     void *iter;
 
     fprintf(f, "\tdisplay renderer [renderer data]\n");
@@ -603,19 +664,17 @@ COMMAND_HELP(display) {
 
     fprintf(f, "Supported renderers:\n");
 
-    if (dcpu16_hw_module_lem1802.ctl(NULL, "get_renderers", NULL, &r)) {
-        fprintf(stderr, "error fetching list of renderers\n");
-        return;
-    }
-
-    while (r->name) {
-        fprintf(f, "name:%s args:%s\n", r->name, r->args);
-    }
-
     iter = NULL;
-    while ( (lem1802_renderers_iter(&iter, &name, &args)) ) {
-        fprintf(f, "\t%s %s\n", name, args);
-    }
+    do {
+        if (dcpu16_hw_module_lem1802.ctl(NULL, "renderers_iter", &iter, &renderer)) {
+            fprintf(stderr, "error fetching next renderer\n");
+            break;
+        }
+        if (iter == NULL || renderer.name == NULL)
+            break;
+
+        fprintf(f, "\t%s %s\n", renderer.name, renderer.args);
+    } while (iter);
 }
 
 COMMAND_IMPL(keyboard) {
@@ -770,13 +829,13 @@ int main(int argc, char **argv) {
          tok_v = tok_v_prev = NULL,
          tok_c = tok_c_prev= 0,
          snprintf(prompt, sizeof prompt, prompt_fmt, vm->reg[DCPU16_REG_PC]),
-         dcpu16_state_print(vm);
+         state_print_(vm);
 
          (line = readline(prompt));
 
          printf("\n"),
          snprintf(prompt, sizeof prompt, prompt_fmt, vm->reg[DCPU16_REG_PC]),
-         dcpu16_state_print(vm)) {
+         state_print_(vm)) {
         const char whitespace[] = " \t";
         char *line_start;
         struct command_ *c;