From 9b4e5be3b4525a47126fe341c09e65360d51b859 Mon Sep 17 00:00:00 2001
From: Raimon Zamora <jaildoctor@gmail.com>
Date: Tue, 31 Jan 2017 19:59:34 +0100
Subject: [PATCH] Debugger STEP and BIGSTEP.

---
 debug.cpp | 4 ++++
 debug.h   | 3 ++-
 main.cpp  | 4 +++-
 vm.cpp    | 6 ++++++
 vm.h      | 1 +
 5 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/debug.cpp b/debug.cpp
index 634aa52..58e1c72 100644
--- a/debug.cpp
+++ b/debug.cpp
@@ -203,6 +203,10 @@ void debug_init(unsigned char* mem) {
 	fclose(f);
 	program[fsize] = 0;
 
+	debug_update();
+}
+
+void debug_update() {
 	debug_set_paper(128, 128, 128);
 	debug_clear();
 
diff --git a/debug.h b/debug.h
index c920568..48b72e7 100644
--- a/debug.h
+++ b/debug.h
@@ -1,3 +1,4 @@
 #pragma once
 
-void debug_init(unsigned char* mem);
\ No newline at end of file
+void debug_init(unsigned char* mem);
+void debug_update();
diff --git a/main.cpp b/main.cpp
index a74edda..fe4bd0d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -45,6 +45,7 @@ int main(int argc, char** argv) {
 	vm_register_in_port(21, input_data_out);
 
 	debug_init(vm_get_memory());
+
 	static bool should_quit = false;
 	static SDL_Event sdlEvent;
 	SDL_Scancode just_pressed;
@@ -59,9 +60,10 @@ int main(int argc, char** argv) {
 				anykey = true;
 				just_pressed = sdlEvent.key.keysym.scancode;
 				if (sdlEvent.key.keysym.scancode == SDL_SCANCODE_ESCAPE) { should_quit = true; }
+				if (sdlEvent.key.keysym.scancode == SDL_SCANCODE_RETURN) { vm_big_step(); debug_update(); }
 			}
 		}
-		vm_step();
+		//vm_step();
 		//if (SDL_GetTicks() - ticks >= 15) { vdp_flip(); ticks = SDL_GetTicks(); }
 	}
 
diff --git a/vm.cpp b/vm.cpp
index 2be2fd0..9fee05e 100644
--- a/vm.cpp
+++ b/vm.cpp
@@ -241,6 +241,12 @@ const int vm_step() {
 	return vm_cycles;
 }
 
+const int vm_big_step() {
+	word* lines = parser_get_lines();
+	word current_line = lines[vm_pc];
+	while (vm_pc > 32768 || lines[vm_pc] == current_line) { vm_step(); }
+	return 0;
+}
 /*void vm_register_call(void(*callback)(t_stack&)) {
 	external_calls[numcallbacks++] = callback;
 }*/
diff --git a/vm.h b/vm.h
index 61004f1..4898e78 100644
--- a/vm.h
+++ b/vm.h
@@ -3,6 +3,7 @@
 
 void vm_init(const char* filename);
 const int vm_step();
+const int vm_big_step();
 void vm_register_in_port(const unsigned char port, unsigned char(*callback)(void));
 void vm_register_out_port(const unsigned char port, void(*callback)(const unsigned char&));
 void vm_call_interrupt(const char num);