// Commander X16 Emulator

// Execution coverage: which addresses the CPU fetched an instruction from.

/*

-coverage <file> marks every address the CPU runs an instruction from, keeping

the bank for the two banked windows, and writes the marks to <file> when the

emulator exits: normally, or on SIGTERM, which is how a test harness stops it.

A host tool maps them to source lines through the program's line tables.

The file is text, one run of consecutive marked addresses a line:

    x16emu-coverage 1

    m 0801-0843          low memory, $0000-$9FFF

    r 03:a000-a01f       a RAM bank in the $A000-$BFFF window

    k 20:c000-c00a       a ROM or cartridge bank in the $C000-$FFFF window

An address is marked once however often it runs: one byte of memory per

address, and no counting in the CPU loop.

*/

#ifndef COVERAGE_H

#define COVERAGE_H

#include <stdbool.h>

#include <stdint.h>

extern bool coverage_enabled;

extern volatile bool coverage_stop;

bool coverage_init(const char *path);

void coverage_mark(uint16_t pc);

void coverage_write(void);

#endif