From c2d9c1b06b455a5f41feb460ff0875962b6d6357 Mon Sep 17 00:00:00 2001
From: Filippos Karapetis
Date: Wed, 17 Nov 2010 00:05:09 +0000
Subject: SCI: Added the ability to display original script bytecode in the
 "disasm" console command

svn-id: r54275
---
 engines/sci/console.cpp            | 19 +++++++++++++------
 engines/sci/console.h              |  2 +-
 engines/sci/engine/scriptdebug.cpp |  6 +++---
 3 files changed, 17 insertions(+), 10 deletions(-)

(limited to 'engines')

diff --git a/engines/sci/console.cpp b/engines/sci/console.cpp
index 6ddc1afe0a..fe426d3489 100644
--- a/engines/sci/console.cpp
+++ b/engines/sci/console.cpp
@@ -1210,7 +1210,7 @@ bool Console::cmdClassTable(int argc, const char **argv) {
 						className,
 						PRINT_REG(temp.reg),
 						temp.script);
-			}
+			} else DebugPrintf(" Class 0x%x (not loaded; can't get name) (script %d)\n", i, temp.script);
 		}
 	}
 
@@ -2609,13 +2609,17 @@ bool Console::cmdStepCallk(int argc, const char **argv) {
 }
 
 bool Console::cmdDisassemble(int argc, const char **argv) {
-	if (argc != 3) {
+	if (argc < 3) {
 		DebugPrintf("Disassembles a method by name.\n");
-		DebugPrintf("Usage: %s <object> <method>\n", argv[0]);
+		DebugPrintf("Usage: %s <object> <method> <print bytecode>\n", argv[0]);
+		DebugPrintf("The last parameter, <print bytecode> is optional. If true\n");
+		DebugPrintf("or 1 is specified, the associated bytecode is shown next to\n");
+		DebugPrintf("each dissassembled command\n");
 		return true;
 	}
 
 	reg_t objAddr = NULL_REG;
+	bool printBytecode = false;
 
 	if (parse_reg_t(_engine->_gamestate, argv[1], &objAddr, false)) {
 		DebugPrintf("Invalid address passed.\n");
@@ -2642,8 +2646,11 @@ bool Console::cmdDisassemble(int argc, const char **argv) {
 		return true;
 	}
 
+	if (argc == 4 && (!strcmp(argv[3], "1") || !strcmp(argv[3], "true")))
+		printBytecode = true;
+
 	do {
-		addr = disassemble(_engine->_gamestate, addr, 0, 0);
+		addr = disassemble(_engine->_gamestate, addr, 0, printBytecode);
 	} while (addr.offset > 0);
 
 	return true;
@@ -2663,7 +2670,7 @@ bool Console::cmdDisassembleAddress(int argc, const char **argv) {
 	reg_t vpc = NULL_REG;
 	int op_count = 1;
 	int do_bwc = 0;
-	int do_bytes = 0;
+	bool do_bytes = false;
 	int size;
 
 	if (parse_reg_t(_engine->_gamestate, argv[1], &vpc, false)) {
@@ -2679,7 +2686,7 @@ bool Console::cmdDisassembleAddress(int argc, const char **argv) {
 		if (!scumm_stricmp(argv[i], "bwt"))
 			do_bwc = 1;
 		else if (!scumm_stricmp(argv[i], "bc"))
-			do_bytes = 1;
+			do_bytes = true;
 		else if (toupper(argv[i][0]) == 'C')
 			op_count = atoi(argv[i] + 1);
 		else {
diff --git a/engines/sci/console.h b/engines/sci/console.h
index 68c2d21e38..269ff47099 100644
--- a/engines/sci/console.h
+++ b/engines/sci/console.h
@@ -36,7 +36,7 @@ namespace Sci {
 class SciEngine;
 struct List;
 
-reg_t disassemble(EngineState *s, reg_t pos, int print_bw_tag, int print_bytecode);
+reg_t disassemble(EngineState *s, reg_t pos, int print_bw_tag, bool printBytecode);
 
 class Console : public GUI::Debugger {
 public:
diff --git a/engines/sci/engine/scriptdebug.cpp b/engines/sci/engine/scriptdebug.cpp
index d587db26b4..2f1e44f1cf 100644
--- a/engines/sci/engine/scriptdebug.cpp
+++ b/engines/sci/engine/scriptdebug.cpp
@@ -64,7 +64,7 @@ const char *opcodeNames[] = {
 };
 
 // Disassembles one command from the heap, returns address of next command or 0 if a ret was encountered.
-reg_t disassemble(EngineState *s, reg_t pos, int print_bw_tag, int print_bytecode) {
+reg_t disassemble(EngineState *s, reg_t pos, int print_bw_tag, bool printBytecode) {
 	SegmentObj *mobj = s->_segMan->getSegment(pos.segment, SEG_TYPE_SCRIPT);
 	Script *script_entity = NULL;
 	const byte *scr;
@@ -97,7 +97,7 @@ reg_t disassemble(EngineState *s, reg_t pos, int print_bw_tag, int print_bytecod
 
 	debugN("%04x:%04x: ", PRINT_REG(pos));
 
-	if (print_bytecode) {
+	if (printBytecode) {
 		if (pos.offset + bytecount > scr_size) {
 			warning("Operation arguments extend beyond end of script");
 			return retval;
@@ -335,7 +335,7 @@ void SciEngine::scriptDebug() {
 	}
 
 	debugN("Step #%d\n", s->scriptStepCounter);
-	disassemble(s, s->xs->addr.pc, 0, 1);
+	disassemble(s, s->xs->addr.pc, 0, true);
 
 	if (_debugState.runningStep) {
 		_debugState.runningStep--;
-- 
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