RBIL61 - PS/2 Model 30

RBIL61 - PS/2 Model 30

INT 15 - OS HOOK - ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. TRACING CALLOUT (PS30IBM PS/2 Model 30 and below/286,PS50Z,PS95) {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated., callout or callback} {#idx22870}

INT 15 - SYSTEM - COPY EXTENDED MEMORY {#idx20921}

INT 15 - SYSTEM - GET EXTENDED MEMORY SIZE (286+) {#idx20969}

INT 1A - TIME - READ RTCsee Real-Time Clock ALARM TIME AND STATUS (CONVIBM Convertible,PS30IBM PS/2 Model 30 and below) {#idx30703}