Function CmdCursorLineDown

source/Debugger/Debug.cpp:3299–3370

===========================================================================

//===========================================================================
Update_t CmdCursorLineDown (int nArgs)
{
	int iOpmode; 
	int nOpbytes;
	_6502_GetOpmodeOpbyte( g_nDisasmCurAddress, iOpmode, nOpbytes ); // g_nDisasmTopAddress

	if (g_iWindowThis == WINDOW_DATA)
	{
		_CursorMoveDownAligned( WINDOW_DATA_BYTES_PER_LINE );
		DisasmCalcTopBotAddress();
	}
	else
	if (nArgs) // scroll down by 'n' bytes
	{
		nOpbytes = nArgs; // HACKL g_aArgs[1].val

		g_nDisasmTopAddress += nOpbytes;
		g_nDisasmCurAddress += nOpbytes;
		g_nDisasmBotAddress += nOpbytes;
		DisasmCalcTopBotAddress();
	}
	else
	{
#if DEBUG_SCROLL == 6
		// Works except on one case: G FB53, SPACE, DOWN
		WORD nTop = g_nDisasmTopAddress;
		WORD nCur = g_nDisasmCurAddress + nOpbytes;
		if (g_bDisasmCurBad)
		{
			g_nDisasmCurAddress = nCur;
			g_bDisasmCurBad = false;
			DisasmCalcTopFromCurAddress();
			return UPDATE_DISASM;
		}

		// Adjust Top until nNewCur is at > Cur
		do
		{
			g_nDisasmTopAddress++;
			DisasmCalcCurFromTopAddress();
		} while (g_nDisasmCurAddress < nCur);

		DisasmCalcCurFromTopAddress();
		DisasmCalcBotFromTopAddress();
		g_bDisasmCurBad = false;
#endif
		g_nDisasmCurAddress += nOpbytes;

		_6502_GetOpmodeOpbyte( g_nDisasmTopAddress, iOpmode, nOpbytes );
		g_nDisasmTopAddress += nOpbytes;

		_6502_GetOpmodeOpbyte( g_nDisasmBotAddress, iOpmode, nOpbytes );
		g_nDisasmBotAddress += nOpbytes;

		if (g_bDisasmCurBad)
		{
//	MessageBox( NULL, "Bad Disassembly of opcodes", "Debugger", MB_OK );