debugger updates

bin/CMakeLists.txt

@@ -25,8 +25,14 @@ add_custom_command(
 	DEPENDS debugger.h
 )
 
+add_custom_command(
+	OUTPUT loadtrap.cpp
+	COMMAND ragel -p -G2 -o loadtrap.cpp "${CMAKE_CURRENT_SOURCE_DIR}/loadtrap.rl"
+	MAIN_DEPENDENCY loadtrap.rl 
+	DEPENDS debugger.h
+)
 
-add_executable(mpw loader.cpp debugger.cpp address_map.cpp lexer.cpp parser.cpp)
+add_executable(mpw loader.cpp debugger.cpp address_map.cpp lexer.cpp parser.cpp loadtrap.cpp)
 target_link_libraries(mpw CPU_LIB)
 target_link_libraries(mpw TOOLBOX_LIB)
 target_link_libraries(mpw MPW_LIB)

bin/address_map.h

@@ -16,6 +16,21 @@ public:
 
 	void clear();
 
+	std::unordered_map<uint32_t, unsigned>::iterator begin()
+	{
+		return map.begin();
+	}
+
+	std::unordered_map<uint32_t, unsigned>::iterator end()
+	{
+		return map.end();
+	}
+
+	size_t size()
+	{
+		return map.size();
+	}
+
 private:
 	std::array<unsigned, 4096> pageMap;
 	std::unordered_map<uint32_t, unsigned> map;
@@ -34,6 +49,21 @@ public:
 
 	void clear();
 
+	std::unordered_map<uint32_t, unsigned>::iterator begin()
+	{
+		return map.begin();
+	}
+
+	std::unordered_map<uint32_t, unsigned>::iterator end()
+	{
+		return map.end();
+	}
+	
+	size_t size()
+	{
+		return map.size();
+	}
+
 private:
 	std::unordered_map<uint32_t, unsigned> map;
 

bin/debugger.cpp

@@ -28,6 +28,8 @@
 #include <macos/traps.h>
 #include <macos/sysequ.h>
 
+#include <mpw/mpw.h>
+
 namespace {
 
 	bool sigInt = false;
@@ -41,6 +43,7 @@ namespace {
 	AddressMap wbrkMap; // write breaks.
 	ToolMap tbrkMap; // tool breaks.
 
+	std::unordered_map<std::string, uint16_t> toolMap;
 
 
 	void hexdump(const uint8_t *data, ssize_t size, uint32_t address = 0)
@@ -439,6 +442,34 @@ void ToolBreak(int32_t tool)
 	}
 }
 
+void ToolBreak()
+{
+	// list all tool breaks.
+
+	if (!tbrkMap.size())
+	{
+		printf("No tool breaks\n");
+		return;
+	}
+
+	std::vector<unsigned> v;
+	v.reserve(tbrkMap.size());
+
+	for (auto kv : tbrkMap)
+	{
+		v.push_back(kv.first);
+	}
+
+	std::sort(v.begin(), v.end());
+
+	for (auto trap : v)
+	{
+		const char *name = TrapName(trap);
+		if (!name) name = "";
+		printf("$%04x %s\n", trap, name);
+	}
+}
+
 void Break(int32_t address)
 {
 	// 24-bit only, - address to remove.
@@ -463,6 +494,34 @@ void Break(int32_t address)
 }
 
 
+void Break()
+{
+	// list all tool breaks.
+
+	if (!brkMap.size())
+	{
+		printf("No breaks\n");
+		return;
+	}
+
+	std::vector<unsigned> v;
+	v.reserve(brkMap.size());
+
+	for (auto kv : brkMap)
+	{
+		v.push_back(kv.first);
+	}
+
+	std::sort(v.begin(), v.end());
+
+	for (auto address : v)
+	{
+		printf("$%08x", address);
+	}
+}
+
+
+
 
 void Step(const Command &cmd)
 {
@@ -543,6 +602,20 @@ void SetXRegister(unsigned reg, uint32_t value)
 }
 
 
+uint16_t TrapNumber(const std::string &s)
+{
+	auto iter = toolMap.find(s);
+	if (iter == toolMap.end()) return 0;
+	return iter->second;
+}
+
+uint16_t TrapNumber(const char *cp)
+{
+	if (!cp || !*cp) return 0;
+	std::string s(cp);
+	return TrapNumber(s);
+}
+
 
 // TODO -- RUN command - reload, re-initialize, re-execute
 // TODO -- parser calls commands directly (except trace/step/run/etc)
@@ -552,6 +625,13 @@ void Shell()
 
 	add_history("!Andy, it still has history!");
 
+	{
+		// load the tool trap file.
+		std::string path = MPW::RootDir();
+		path += "/Traps.text";
+		toolMap = LoadTrapFile(path);
+	}
+
 	// start it up
 	printf("MPW Debugger shell\n\n");
 	disasm(cpuGetPC());

bin/debugger.h

@@ -3,6 +3,9 @@
 
 
 #include <cstdint>
+#include <unordered_map>
+#include <functional>
+#include <string>
 
 // Debugger is a function in MacTypes.h
 namespace Debug {
@@ -25,6 +28,12 @@ struct Command {
 
 bool ParseLine(const char *iter, Command *command);
 
+std::unordered_map<std::string, uint16_t> LoadTrapFile(const std::string &path);
+
+uint16_t TrapNumber(const std::string &);
+uint16_t TrapNumber(const char *);
+
+
 void Shell();
 void Help();
 
@@ -44,7 +53,10 @@ void SetDRegister(unsigned reg, uint32_t value);
 void SetXRegister(unsigned reg, uint32_t value);
 
 void ToolBreak(int32_t tool);
+void ToolBreak();
+
 void Break(int32_t address);
+void Break();
 
 }
 

bin/lexer.re.cpp

@@ -304,4 +304,7 @@ bool ParseLine(const char *iter, Command *command)
 	return command->valid;
 }
 
+
+
 } // namespace Debugger
+

bin/loadtrap.rl

@@ -0,0 +1,93 @@
+
+#include <unordered_map>
+#include <string>
+#include <cstdio>
+
+#include "debugger.h"
+
+%%{
+	
+	machine traplist;
+
+	action error {
+		fprintf(stderr, "Invalid line: %d %.*s", line, (int)length, cp);
+		fprintf(stderr, "%s - %x\n", name.c_str(), trap);
+	}
+
+	main :=
+		[ \t]*
+		[_A-Za-z][_A-Za-z0-9]* @{
+			name.push_back(fc);
+		}
+		[ \t]*
+		'='
+		[ \t]*
+		('0x' | '$')
+		[0-9A-Fa-f]+ @{ 
+			trap = (trap << 4) + digittoint(fc);
+		}
+		[ \t\r\n]*
+
+		%eof {
+			// final state
+			map.emplace(name, trap);
+		}
+		@eof(error)
+		$err(error)
+		
+		;
+
+}%%
+
+namespace Debug {
+std::unordered_map<std::string, uint16_t> LoadTrapFile(const std::string &path)
+{
+%% write data nofinal;
+
+	FILE *fp;
+
+	std::unordered_map<std::string, uint16_t> map;
+
+	fp = fopen(path.c_str(), "r");
+	if (!fp)
+	{
+		fprintf(stderr, "Unable to open file %s\n", path.c_str());
+		return map;
+	}
+
+	int line = 0;
+	for(;;)
+	{
+		char *cp;
+
+		size_t length;
+		cp = fgetln(fp, &length);
+		if (!cp) break;
+		++line;
+
+		while (isspace(*cp) && length)
+		{
+			++cp;
+			length--;
+		}
+		if (!length) continue;
+		if (*cp == '#') continue;
+
+		char *p = cp;
+		char *pe = p + length;
+		char *eof = p + length;
+		int cs;
+
+		std::string name;
+		uint16_t trap = 0;
+
+		%% write init;
+		/* ... */
+		%% write exec;
+	}
+
+	fclose(fp);
+	return map;
+}
+
+}

bin/parser.lemon

@@ -67,6 +67,11 @@ stmt ::= PRINT expr(a) EOL.
 	Debug::Print(a);
 }
 
+stmt ::= BREAK EOL.
+{
+	Debug::Break();
+}
+
 stmt ::= BREAK expr(a) EOL.
 {
 	Debug::Break(a);
@@ -78,6 +83,11 @@ stmt ::= CONTINUE EOL.
 	command->argc = 0;
 }
 
+stmt ::= TBREAK EOL.
+{
+	Debug::ToolBreak();
+}
+
 stmt ::= TBREAK expr(a) EOL.
 {
 	Debug::ToolBreak(a);