// rt/start.s — process entry. Linux sets up the stack so that on
// entry [SP] holds argc, [SP+8] starts argv (NULL-terminated array
// of *u8), [SP+8+(argc+1)*8] starts envp.
//
// We pull argc into DI and the argv pointer into SI, then jump to
// `main`. ww programs that declare `fn main(argc: i32, argv: **u8)
// i32` see them; programs declaring `fn main() i32` simply ignore
// the regs. Either way, main's return value is fed to the exit
// syscall.
TEXT _start,$0
	MOVQ	(SP), DI
	LEAQ	8(SP), SI
	CALL	main(SB)
	MOVQ	AX, DI
	MOVQ	$60, AX
	SYSCALL