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17 - Chernobyl/Interrupt Listing

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+4.3 Interrupt Listing
+The LockIT Pro has an augmented MSP430 CPU with a callgate at address
+0x10 causing a software interrupt. The interrupts are described below.
+
+INT 0x00.
+The putchar interrupt: sends a single byte to the display.
+Takes one argument with the character to print.
+
+INT 0x01.
+The getchar interrupt: reads a single byte of buffered input.
+Takes no arguments.
+
+INT 0x02.
+The gets interrupt: read a specific number of bytes to standard input.
+Takes two arguments. The first is the address to place the string, the
+second is the maximum number of bytes to read. Null bytes are not handled
+specially null-terminated.
+
+INT 0x10.
+Turn on DEP: pages are either executable or writable but never both.
+Takes no arguments.
+
+INT 0x11.
+Mark as a page as either only executable or only writable.
+Takes two one arguments. The first argument is the page number, the
+second argument is 1 if writable, 0 if executable.
+
+INT 0x20.
+The rand interrupt: request a random 16-bit number.
+Takes no arguments.
+
+INT 0x7D.
+Interface with the HSM-1. Set a flag in memory if the password passed in is
+correct.
+Takes two arguments. The first argument is the password to test, the
+second is the location of a flag to overwrite if the password is correct.
+
+INT 0x7E.
+Interface with the HSM-2. Trigger the deadbolt unlock if the password is
+correct.
+Takes one argument: the password to test.
+
+INT 0x7F.
+Interface with deadbolt to trigger an unlock if the password is correct.
+Takes no arguments.