Ajout du second breakpoint et des struct pour faire le avant/apres

1 files changed, 28 insertions, 12 deletions

diff --git a/reverse-engineering/dosbox_snif/main_validate_code.c b/reverse-engineering/dosbox_snif/main_validate_code.c
index 44728ce..fb76c0b 100644
--- a/reverse-engineering/dosbox_snif/main_validate_code.c
+++ b/reverse-engineering/dosbox_snif/main_validate_code.c
@@ -15,9 +15,10 @@ int main(int argc, char *argv[]) {
 	int rv, i, end=0, byte, loops;
 	struct rsp_state rsp;
 	char ds_si[10], command[16], hex_byte[3];
-	unsigned int addr, bs, size, offset;
+	unsigned int addr, size, offset;
+	unsigned int bs=0x100; /* RSP memdump block size */
 
-	struct game_data g;
+	struct game_data g_before, g_after, g_simulated, *g;
 	struct _lemm_data *lemm;
 
 	hex_byte[2]='\0';
@@ -28,6 +29,12 @@ int main(int argc, char *argv[]) {
 		return 1;
 	}
 
+	rsp_query(&rsp, "Z0,2F7B,1"); // Set execution breakpoint at 0208:0EFB (0x2F7B, return point of move_lemmings() )
+	if ( rsp_check_and_clear(&rsp, "OK") != 0 ) {
+		printf("Error when setting addition breakpoint\n");
+		return 1;
+	}
+
 	loops=0;
 	while (!end) {
 		loops++;
@@ -42,10 +49,13 @@ int main(int argc, char *argv[]) {
 			continue;
 		}
 
-		//if ( loops % 10 != 0 ) continue;
+		rsp_query(&rsp, "p8"); // Read $eip
+		if ( rsp_check_and_clear(&rsp, "c4380000") ) {
+			g = &g_before;
+		} else {
+			g = &g_after;
+		}
 
-		// From the beginning of the ds segment
-		bs = 0x100;
 		//printf("sizeof(struct game_data) == %i\n", sizeof(struct game_data) );
 
 		for (offset=0 ; offset < sizeof(struct game_data) ; offset += size) {
@@ -66,18 +76,24 @@ int main(int argc, char *argv[]) {
 					printf("Bug decode\n");
 					break;
 				}
-				((char *)&g)[offset+i] = byte;
+				((char *)g)[offset+i] = byte;
 				//printf("((char *)&g)[0x%02x] = 0x%02x\n", offset+i, byte);
 			}
 		}
 		//printf("\n");
 
-		lemm = g.lemmings;
-		//printf("g.paused == %x (off %02x)\n", g.paused, (void *)&g.paused - (void *)&g);
-		printf("g.lemm_spawned_count == %x (off %02x)\n", g.lemm_spawned_count, (void *)&g.lemm_spawned_count - (void *)&g);
-		//printf("g.lemm_out_count == %x (off %02x)\n", g.lemm_out_count, (void *)&g.lemm_out_count - (void *)&g);
-		//printf("g.lemm_level_count == %x (off %02x)\n", g.lemm_level_count, (void *)&g.lemm_level_count - (void *)&g);
-		//printf("lemm->draw_hint == %x (off %02x)\n", lemm->draw_hint, (void *)&lemm->draw_hint - (void *)&g);
+		if ( g == &g_before ) {
+			//TODO : exec local func
+		} else {
+			//TODO : exec comparison on states
+			lemm = g_after.lemmings;
+			//printf("g_after.paused == %x (off %02x)\n", g_after.paused, (void *)&g_after.paused - (void *)&g);
+			printf("g_after.lemm_spawned_count == %x (off %02x)\n", g_after.lemm_spawned_count, (void *)&g_after.lemm_spawned_count - (void *)&g_after);
+			printf("g_after.lemm_out_count == %x (off %02x)\n", g_after.lemm_out_count, (void *)&g_after.lemm_out_count - (void *)&g_after);
+			printf("g_after.lemm_level_count == %x (off %02x)\n", g_after.lemm_level_count, (void *)&g_after.lemm_level_count - (void *)&g_after);
+			printf("lemm->draw_hint == %x (off %02x)\n", lemm->draw_hint, (void *)&lemm->draw_hint - (void *)&g_after);
+		}
+
 	}
 
 	rsp_quit(&rsp);