FF7/Memory Structures

Global Memory bank

This is a structure of significant size that holds over 2500 DWords related to the global situation. These range from logs to screen resolutions to sound handlers. Documenting this is a very difficult task as it is accessed all over the executable code and usually passed to other functions as pointers. As such this list is likely to change a lot and some of it might start off completely wrong. This only applies to the PC version and possibly only v1.02 of the '98 release.

Memory pointer	Initial Value	Function
0x000	1
0x004	"APP.LOG"	Log file name
0x00C		Current bits per pixel
0x030		Related to time (elapsed time?)
0x038		Related to time (start-up time?)
0x058	hInstance passed to the WinMain function as the result of a GetModuleHandle(0) call on startup.
0x05C	Window handler pointer created from a CreateWindowEx call
0x848	0	Width of border on left and right
0x84C	0	Height of border on top and bottom
0x850	640	Display's width in pixels
0x854	480	Display's height in pixels
0x858	[0x850] - [0x848]	Display's top left X coordinate in pixels
0x85C	[0x854] - [0x84C]	Display's top left Y coordinate in pixels
0x934		Method used in redrawing screen
0x954	640	Application's width in pixels
0x958	480	Application's height in pixels
0x95C		Requested bits per pixel (should match [0x00C])
0x99C	90.0
0x9A0	5.0 (then changed to 125.0
0x9A4	2000.0 (then changed to 50000.0)
0x9B0	0	Seed for randomizing function (current time is used if value is 0)
0x9B4	"DEFAULT"	Process Name
0x9B8	"DEFAULT CLASS"	Equally un-inventive process class name.
0x9F0	0x4089C5	Library access function. Will load all LGP archives.
0x9F4	0x676605	If passed argument is 0 this function sets it to 1
0x9F8	0x408FA6	"Main" function called first when a game is loaded or started
0x9FC	0x4090C7	Function called when a game is quit via menu (PC only?)
0xA00	0x4090E6	Event Driver pointer
0xA28	0x409CF2	Function to set up window for playing a movie file
0xA2C	0x409D66	CD Check function to make sure correct disc is present