Labels:text | screenshot | parallel | font | black and white | number | line | document OCR: B. 16 - Memory Map LO_ 000000 S M S M T T T e T a a 3 S T T Location(s ) Size Type Meaning 0x0000053E- LONG RAM xconin: This location contains eight pointers to the 0x0000055A BIOS Boonin() functions for eight BIOS devices. 0x0000055E - LONG RAM xcostat: This location contains eight pointers to the 0x0000056.A BIOS Boostat() functions for eight BIOS devices. 0x0000057E - LONG RAM xconout: This location contains eight pointers to the 0x0000059.A BIOS Boonout( ) functions for eight BIOS devices. 0x0000059 E WORD RAM _longframe: If this value is O then the processor uses short stack frames, otherwise it uses long stack frames. This value is of interest to applications which intercept TRAP handlers. When using short stack frames, the first parameter will be found at 6(sp), otherwise at 8(sp). 0x000005A0 LONG RAM _p_cookies: This is a pointer to the system Cookie Jar 0x000005A4 LONG RAM ramtop: If ramvalid' is correct, this is a pointer to the end of alternative RAM. 0x000005.48 LONG RAM ram valid': This value should be $1357 BD 13 to indicate that ramtop is correct. 0x000005AC LONG RAM bell_hook: This vector is jumped through to sound the system bell. 0x000005 BO LONG RAM 4cl_hook: This vector is jumped through to sound system key clicks. The scancode of the current character is placed in the low byte of DO. System RAM / Expansion 0x00000584- BYTE RAM/ This area contains whatever remaining ST 0x009FFFFF ROM compatible RAM is available. Additional space at this location is utilized by the operating system. Memory locations below0x00E00000 on a machine other than the Mega STe or below 0>00.A00000 on a Mega STe that are not part of this RAM may be utilized by hardware developers. 0x00.A00000 - BYTE VME/ On a Mega STe, this area is mapped to VME OxOODEFFFF RAM A24:D16 address space, otherwise it may be mapped to additional ST compatible RAM or I/O space. Falcon030 computers use this address space for RAM.
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