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some fixes

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@398 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-03-27 19:04:05 +00:00
parent a5f80ce405
commit d6114368e1
7 changed files with 25 additions and 18 deletions
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15
Pico/Cart.c
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@ -20,6 +20,8 @@ void (*PicoCartUnloadHook)(void) = NULL;
void (*PicoCartLoadProgressCB)(int percent) = NULL;
void (*PicoCDLoadProgressCB)(int percent) = NULL; // handled in Pico/cd/cd_file.c
static void PicoCartDetect(void);
/* cso struct */
typedef struct _cso_struct
{
@ -201,6 +203,7 @@ cso_failed:
file->size = ftell(f);
file->type = PMT_UNCOMPRESSED;
fseek(f, 0, SEEK_SET);
return file;
}
@ -489,12 +492,17 @@ int PicoCartInsert(unsigned char *rom,unsigned int romsize)
// notaz: add a 68k "jump one op back" opcode to the end of ROM.
// This will hang the emu, but will prevent nasty crashes.
// note: 4 bytes are padded to every ROM
if(rom != NULL)
if (rom != NULL)
*(unsigned long *)(rom+romsize) = 0xFFFE4EFA; // 4EFA FFFE byteswapped
Pico.rom=rom;
Pico.romsize=romsize;
if (SRam.data) {
free(SRam.data);
SRam.data = NULL;
}
if (PicoCartUnloadHook != NULL) {
PicoCartUnloadHook();
PicoCartUnloadHook = NULL;
@ -550,10 +558,9 @@ static int name_cmp(const char *name)
* various cart-specific things, which can't be handled by generic code
* (maybe I should start using CRC for this stuff?)
*/
void PicoCartDetect(void)
static void PicoCartDetect(void)
{
int sram_size = 0, csum;
if(SRam.data) free(SRam.data); SRam.data=0;
Pico.m.sram_reg = 0;
csum = PicoRead32(0x18c) & 0xffff;
@ -590,7 +597,7 @@ void PicoCartDetect(void)
if (sram_size)
{
SRam.data = (unsigned char *) calloc(sram_size, 1);
if(!SRam.data) return;
if (SRam.data == NULL) return;
}
SRam.changed = 0;