[rizapn]

Loading file from MMC

I don't know how to do it with the original firmware. There are fileOpen, fileRead, fileWrite, and fileClose built-in functions. But, it could turn the phone off if we call it directly.

That's why I modify some function to get access to the file function more savely.

If you already install FAM patch, the file access will be like this :

#define FACBuff  36h:3FF8h
#define BFABuff  20h:0
#define BMPString	2e2h:2285h

myReadFile_start:
	mov	r14, #pof(FACBuff)+8
	mov	r13, #pag(BFABuff)
	mov	r12, #pof(BFABuff)
	mov	r5, #seg(after_loading_func)
	mov	r4, #ofs(after_loading_func)
	extp	#pag(FACBuff), #4
	mov	[-r14], r5
	mov	[-r14], r4
	mov	[-r14], r13
	mov	[-r14], r12
	mov	r12, #0
	mov	r13, #0
	mov	[-r0], r13
	mov	[-r0], r12
	mov	r12, #pof(filename)
	mov	r13, #pag(filename)
	mov	r14, #pof(BMPString)
	mov	r15, #pag(BMPString)
	calls	0d7d912h
	add	r0, #4
	rets

after_loading_func:
;type something here to be executed after the file is loaded
	rets

filename:
	db 'A:\Misc\MyTest.txt',0

FACBuff is a temporary buffer used by FAM to distinguish between a normal fileOpen and our fileOpen (I use 36h:3FF8h in FAM, you can not modify this unless you modify the FAM patch also).

BFABuff is the buffer for fileRead content. You can select any "free" RAM, usually, I use 20:0 until 29:3FFF (used by Java midlet).

after_loading_func is the function which will be executed after the fileRead is finished, just after the original fileClose is executed. Put all your instruction which need to be executed after the file is loaded here ...

I know how to load any file (including midi ones) into the memory, but I need to search the convertMID2Tones() and playTonesMemory() function to be able to play the file after it is loaded.

Hope it is helpfull,

rizapn