/* 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
/* 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