#define NOP			0xEA		/* CPU NoOp */
#define PAGESIZE 	0x1F		/* Pagesize of extra addressing of devices */
#define VIDADDRS 	0xBE00		/* Video Address */
#define VIAADDRS 	0xBF80		/* VIA Address */
#define KBDADDRS 	0xBD00		/* Keyboard Register */

#define RAMSIZE 	0x7FFF		/* RAM Page Size */
#define RAMLOC  	0x0000		/* ROM Page Location */
#define ROMSIZE 	0x3FFF		/* ROM Page Size */
#define ROMLOC  	0xC000		/* ROM Page Location */

#define BACKCOLOR sfBlack
#define FPS 60

#define PREAMBLE "LS7 Emulator by Gabriel Weingardt.\nLicense: GPL v.3+\n\n"

#define HELP "Usage: LS7Emulator [options] file\n\n\
Options:        Type    Default     Desc\n\
--help                              Show this menu\n\
--help-keys                         Show emulator key functions\n\
--cpuspeed      [int]   100000      CPU Speed given in Herz. KHz and MHz annotations like 1KHz are supported\n\
--scale         [float]   2.0       Set the starting scale of the video output\n\
--singlestep                        Enable singlestepping with the 'F8' key\n\
--clocksteps    [int]     1         Set the clock cycles cycled by a singlestep\n\
--snapshot      [string]            Import a CPU snapshot\n\
\n"

#define HELPKEYS "\
F1              Exit emulator\n\
F2              Show Key Help\n\
F3              Show Debug Menu\n\
F4              Halt CPU\n\
F5              Reset CPU\n\
F6              Scale--\n\
F7              Scale++\n\
F8              Single step CPU\n\
F9              Save CPU snapshot\n\
F10             Load previous snapshot\n\
F11             CPU NMI\n\
F12             CPU IRQ\n\n"

static float displayscale = 2;
static int cpuspeed = 100000; // 100 kHz
static int singlestep = 0;
static int clocksteps = 1;