/*
- * dbg.c
- *
- * Ullrich von Bassewitz, 08.08.1998
- *
- */
+** dbg.c
+**
+** Ullrich von Bassewitz, 08.08.1998
+**
+*/
static char HelpHandler (void);
/* Forwards for other functions */
-static void DisplayPrompt (char* s);
+static void DisplayPrompt (const char* s);
static void SingleStep (char StepInto);
static void RedrawStatic (char Frame);
static void Redraw (char Frame);
/* Color definitions */
-#if defined(__PLUS4__) || defined(__C16__)
+#if defined(__C16__)
# define COLOR_BORDER (BCOLOR_DARKBLUE | CATTR_LUMA6)
# define COLOR_BACKGROUND COLOR_WHITE
# define COLOR_TEXTHIGH COLOR_BLACK
# define COLOR_FRAMEHIGH COLOR_WHITE
# define COLOR_FRAMELOW COLOR_GRAY3
# else
-# if defined(__APPLE2__) || defined(__APPLE2ENH__)
+# if defined(__APPLE2__)
# define COLOR_BORDER COLOR_BLACK
# define COLOR_BACKGROUND COLOR_BLACK
# define COLOR_TEXTHIGH COLOR_BLACK
# define MAX_X 80
# define MAX_Y 25
# define DUMP_BYTES 16
-#elif defined(__APPLE2__) || defined(__APPLE2ENH__) || defined(__ATARI__)
+#elif defined(__APPLE2__) || defined(__ATARI__)
# define MAX_X 40
# define MAX_Y 24
# define DUMP_BYTES 8
#endif
/* Replacement key definitions */
-#if defined(__APPLE2__) || defined(__LYNX__) || defined(__SUPERVISION__)
+#ifndef CH_DEL
# define CH_DEL ('H' - 'A' + 1) /* Ctrl+H */
#endif
typedef struct {
unsigned char x;
unsigned char y;
- char* text;
+ const char* text;
} TextDesc;
/* Window descriptor */
unsigned char fd_visible; /* Is the window currently visible? */
char (*fd_func) (void); /* Handler function */
unsigned char fd_textcount; /* Number of text lines to print */
- TextDesc* fd_text; /* Static text in the window */
+ const TextDesc* fd_text; /* Static text in the window */
} FrameDesc;
/* Texts for the windows */
-static TextDesc RegText [] = {
+static const TextDesc RegText [] = {
{ 1, 0, "PC" },
{ 1, 1, "SR" },
{ 1, 2, "A" },
{ 1, 6, "CS" },
{ 1, 7, "HI" }
};
-static TextDesc HelpText [] = {
+static const TextDesc HelpText [] = {
{ 1, 0, "F1, ? Help" },
{ 1, 1, "F2, t Toggle breakpoint" },
{ 1, 2, "F3, u Run until subroutine returns" },
/* Window data */
-static FrameDesc AsmFrame = {
+static const FrameDesc AsmFrame = {
CH_ULCORNER, CH_TTEE, CH_LTEE, CH_CROSS,
0, 0, MAX_X - 10, 15,
MAX_X - 11, 14,
AsmHandler,
0, 0
};
-static FrameDesc RegFrame = {
+static const FrameDesc RegFrame = {
CH_TTEE, CH_URCORNER, CH_LTEE, CH_RTEE,
MAX_X - 10, 0, MAX_X - 1, 9,
8, 8,
RegHandler,
sizeof (RegText) / sizeof (RegText [0]), RegText
};
-static FrameDesc StackFrame = {
+static const FrameDesc StackFrame = {
CH_LTEE, CH_RTEE, CH_CROSS, CH_RTEE,
MAX_X - 10, 9, MAX_X - 1, 15,
8, 5,
StackHandler,
0, 0
};
-static FrameDesc CStackFrame = {
+static const FrameDesc CStackFrame = {
CH_CROSS, CH_RTEE, CH_BTEE, CH_LRCORNER,
MAX_X - 10, 15, MAX_X - 1, MAX_Y - 1,
8, MAX_Y - 17,
CStackHandler,
0, 0
};
-static FrameDesc DumpFrame = {
+static const FrameDesc DumpFrame = {
CH_LTEE, CH_CROSS, CH_LLCORNER, CH_BTEE,
0, 15, MAX_X - 10, MAX_Y-1,
MAX_X - 11, MAX_Y - 17,
DumpHandler,
0, 0
};
-static FrameDesc HelpFrame = {
+static const FrameDesc HelpFrame = {
CH_ULCORNER, CH_URCORNER, CH_LLCORNER, CH_LRCORNER,
0, 0, MAX_X - 1, MAX_Y-1,
MAX_X - 2, MAX_Y - 2,
HelpHandler,
sizeof (HelpText) / sizeof (HelpText [0]), HelpText
};
-static FrameDesc* Frames [] = {
+static const FrameDesc* const Frames [] = {
&AsmFrame,
&RegFrame,
&StackFrame,
/* Prompt line data */
-static char* ActivePrompt = 0; /* Last prompt line displayed */
+static const char* ActivePrompt = 0; /* Last prompt line displayed */
static char PromptColor; /* Color behind prompt */
static char PromptLength; /* Length of current prompt string */
BreakPoint* DbgIsBreak (unsigned Addr);
/* Check if there is a user breakpoint at the given address, if so, return
- * a pointer to the slot, else return 0.
- */
+** a pointer to the slot, else return 0.
+*/
-static void DrawFrame (register FrameDesc* F, char Active)
+static void DrawFrame (register const FrameDesc* F, char Active)
/* Draw one window frame */
{
- TextDesc* T;
+ const TextDesc* T;
unsigned char Count;
unsigned char tl, tr, bl, br;
unsigned char x1, y1, width;
/* Draw all frames */
{
unsigned char I;
- FrameDesc* F;
+ const FrameDesc* F;
/* Build the frame layout of the screen */
for (I = 0; I < sizeof (Frames) / sizeof (Frames [0]); ++I) {
/* Activate a new frame, deactivate the old one */
{
unsigned char y;
- register FrameDesc* F;
+ register const FrameDesc* F;
if (ActiveFrame != Num) {
-static void DisplayPrompt (char* s)
+static void DisplayPrompt (const char* s)
/* Display a prompt */
{
unsigned char OldColor;
if (C == CH_STOP) {
return 1;
}
+#endif
+#if !defined(CH_ESC) && !defined(CH_STOP)
+ /* Avoid compiler warning about unused parameter */
+ (void) C;
#endif
return 0;
}
-static void ErrorPrompt (char* Msg)
+static void ErrorPrompt (const char* Msg)
/* Display an error message and wait for a key */
{
/* Save the current prompt */
- char* OldPrompt = ActivePrompt;
+ const char* OldPrompt = ActivePrompt;
/* Display the new one */
DisplayPrompt (Msg);
static unsigned char DbgTmpBreaksOk (void)
/* Check if the temporary breakpoints can be set, if so, return 1, if not,
- * reset them all and return 0.
- */
+** reset them all and return 0.
+*/
{
unsigned char i;
BreakPoint* B = DbgBreaks;
static unsigned AsmBack (unsigned mem, unsigned char lines)
/* Go back in the assembler window the given number of lines (calculate
- * new start address).
- */
+** new start address).
+*/
{
unsigned cur;
unsigned adr [32];
return adr [(in - lines - 1) & 0x1F];
} else {
/* The requested address is inside an instruction, go back
- * one more byte and try again.
- */
+ ** one more byte and try again.
+ */
++offs;
break;
}
case OPC_BNE:
case OPC_BEQ:
/* Be sure not to set the breakpoint twice if this is a jump to
- * the following instruction.
- */
+ ** the following instruction.
+ */
Offs = ((signed char*)brk_pc)[1];
if (Offs) {
DbgSetTmpBreak (brk_pc + Offs + 2);
}
/* Only initialize variables here, don't do a display update. The actual
- * display update will be done while waiting for user input.
- */
+ ** display update will be done while waiting for user input.
+ */
AsmHome ();
UpdateReg (); /* Must update this (static later) */
StackHome ();
projects / cc65 / blobdiff