/ C library -- exit / @(#)exit.PDP.s 7.1 2/5/81 / exit(code) / code is return in r0 to system / modified by INGRES group to call _cleanup (standard v7) / and to require the loading of '_putchar' (so that / the library loads correctly). .globl _exit .globl _putchar .globl __cleanup _exit: mov r5,-(sp) mov sp,r5 jsr pc,__cleanup mov 4(r5),r0 sys exit jsr pc,_putchar / doesn't actually get called.