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This commit is contained in:
Gwenhael Le Moine 2023-05-17 16:02:57 +02:00
parent a46261994f
commit 18acd3a9cc
No known key found for this signature in database
GPG key ID: FDFE3669426707A7
1 changed files with 79 additions and 53 deletions
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132
src/hp48_init.c
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@ -24,6 +24,33 @@ long port2_size;
long port2_mask;
short port2_is_ram;
void get_home_directory( char* path ) {
char* p;
struct passwd* pwd;
if ( homeDirectory[ 0 ] == '/' )
strcpy( path, homeDirectory );
else {
p = getenv( "HOME" );
if ( p ) {
strcpy( path, p );
strcat( path, "/" );
} else {
pwd = getpwuid( getuid() );
if ( pwd ) {
strcpy( path, pwd->pw_dir );
strcat( path, "/" );
} else {
if ( verbose )
fprintf( stderr, "can\'t figure out your home directory, "
"trying /tmp\n" );
strcpy( path, "/tmp" );
}
}
strcat( path, homeDirectory );
}
}
void saturn_config_init( void ) {
saturn.version[ 0 ] = VERSION_MAJOR;
saturn.version[ 1 ] = VERSION_MINOR;
@ -73,6 +100,31 @@ void init_saturn( void ) {
dev_memory_init();
}
int init_emulator( void ) {
if ( !initialize && read_files() ) {
if ( resetOnStartup )
saturn.PC = 0x00000;
return 0;
}
init_saturn();
if ( !read_rom( romFileName ) )
exit( 1 );
return 0;
}
int exit_emulator( void ) {
write_files();
return 1;
}
/***********************************************/
/* READING ~/.x48ng/{rom,ram,hp48,port1,port2} */
/***********************************************/
int read_8( FILE* fp, word_8* var ) {
unsigned char tmp;
@ -420,33 +472,6 @@ int read_rom( const char* fname ) {
return 1;
}
void get_home_directory( char* path ) {
char* p;
struct passwd* pwd;
if ( homeDirectory[ 0 ] == '/' )
strcpy( path, homeDirectory );
else {
p = getenv( "HOME" );
if ( p ) {
strcpy( path, p );
strcat( path, "/" );
} else {
pwd = getpwuid( getuid() );
if ( pwd ) {
strcpy( path, pwd->pw_dir );
strcat( path, "/" );
} else {
if ( verbose )
fprintf( stderr, "can\'t figure out your home directory, "
"trying /tmp\n" );
strcpy( path, "/tmp" );
}
}
strcat( path, homeDirectory );
}
}
int read_files( void ) {
char path[ 1024 ];
char fnam[ 1024 ];
@ -459,17 +484,23 @@ int read_files( void ) {
get_home_directory( path );
strcat( path, "/" );
/*************************************************/
/* 1. read ROM from ~/.x48ng/rom into saturn.rom */
/*************************************************/
saturn.rom = ( word_4* )NULL;
strcpy( fnam, path );
strcat( fnam, "rom" );
if ( !read_rom_file( fnam, &saturn.rom, &rom_size ) )
return 0;
return 0;
if ( verbose )
printf( "read %s\n", fnam );
rom_is_new = 0;
/**************************************************/
/* 2. read saved state from ~/.x48ng/hp48 into fp */
/**************************************************/
strcpy( fnam, path );
strcat( fnam, "hp48" );
if ( NULL == ( fp = fopen( fnam, "r" ) ) ) {
@ -530,10 +561,7 @@ int read_files( void ) {
saturn_config_init();
if ( opt_gx )
ram_size = RAM_SIZE_GX;
else
ram_size = RAM_SIZE_SX;
ram_size = opt_gx ? RAM_SIZE_GX : RAM_SIZE_SX;
saturn.ram = ( word_4* )NULL;
if ( NULL == ( saturn.ram = ( word_4* )malloc( ram_size ) ) ) {
@ -542,6 +570,9 @@ int read_files( void ) {
exit( 1 );
}
/*************************************************/
/* 3. read RAM from ~/.x48ng/ram into saturn.ram */
/*************************************************/
strcpy( fnam, path );
strcat( fnam, "ram" );
if ( ( fp = fopen( fnam, "r" ) ) == NULL ) {
@ -552,8 +583,14 @@ int read_files( void ) {
if ( !read_mem_file( fnam, saturn.ram, ram_size ) )
return 0;
/**************************************/
/* Onto reading port1 and port2 cards */
/**************************************/
saturn.card_status = 0;
/********************************************************/
/* 4. read card 1 from ~/.x48ng/port1 into saturn.port1 */
/********************************************************/
port1_size = 0;
port1_mask = 0;
port1_is_ram = 0;
@ -585,6 +622,9 @@ int read_files( void ) {
saturn.card_status |= port1_is_ram ? 4 : 0;
}
/********************************************************/
/* 5. read card 2 from ~/.x48ng/port2 into saturn.port2 */
/********************************************************/
port2_size = 0;
port2_mask = 0;
port2_is_ram = 0;
@ -618,9 +658,16 @@ int read_files( void ) {
saturn.card_status |= port2_is_ram ? 8 : 0;
}
/************************/
/* All files are loaded */
/************************/
return 1;
}
/***********************************************/
/* WRITING ~/.x48ng/{rom,ram,hp48,port1,port2} */
/***********************************************/
int write_8( FILE* fp, word_8* var ) {
unsigned char tmp;
@ -910,24 +957,3 @@ int write_files( void ) {
return 1;
}
int init_emulator( void ) {
if ( !initialize && read_files() ) {
if ( resetOnStartup )
saturn.PC = 0x00000;
return 0;
}
init_saturn();
if ( !read_rom( romFileName ) )
exit( 1 );
return 0;
}
int exit_emulator( void ) {
write_files();
return 1;
}