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Add support for emulated Game Genie add-on

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jdgleaver
2021-10-21 15:52:40 +01:00
parent 98b2ae09ab
commit 1a961ff6be
12 changed files with 240 additions and 84 deletions
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12
src/cart.c
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@@ -23,6 +23,7 @@
#include <stdio.h>
#include <string/stdstring.h>
#include <file/file_path.h>
#include <streams/file_stream.h>
#include "fceu-types.h"
@@ -353,20 +354,25 @@ void FCEU_OpenGenie(void) {
fn = FCEU_MakeFName(FCEUMKF_GGROM, 0, 0);
if (!string_is_empty(fn))
if (!string_is_empty(fn) && path_is_valid(fn))
fp = filestream_open(fn,
RETRO_VFS_FILE_ACCESS_READ,
RETRO_VFS_FILE_ACCESS_HINT_NONE);
free(fn);
fn = NULL;
if (!fp) {
FCEU_PrintError("Error opening Game Genie ROM image!");
FCEU_PrintError("Error opening Game Genie ROM image!\n");
FCEUD_DispMessage(RETRO_LOG_WARN, 3000, "Game Genie ROM image (gamegenie.nes) missing");
free(GENIEROM);
GENIEROM = 0;
return;
}
if (filestream_read(fp, GENIEROM, 16) != 16) {
grerr:
FCEU_PrintError("Error reading from Game Genie ROM image!");
FCEU_PrintError("Error reading from Game Genie ROM image!\n");
FCEUD_DispMessage(RETRO_LOG_WARN, 3000, "Failed to read Game Genie ROM image (gamegenie.nes)");
free(GENIEROM);
GENIEROM = 0;
filestream_close(fp);