ref: 61ad24312b1f35fbdea73a93f1bde63181a18794
dir: /sys/src/9/ppc/init9.s/
/* this is the same as a c program:
* main(char *argv0){
* startboot(argv0, &argv0);
* }
*
* it is in asm because we need to set the SB before
* doing it and the only way to do this in c drags in
* too many other routines.
*/
TEXT _main(SB),$8
MOVW $setSB(SB), R2
/* make a frame */
SUB $16,R1
/* argv0 is already passed to us in R3 so it is already the first arg */
/* copy argv0 into the stack and push its address as the second arg */
MOVW R3,0x14(R1)
ADD $0x14,R1,R6
MOVW R6,0x8(R1)
BL startboot(SB)
/* should never get here */
loop:
BR loop