From 8a0efa53e44919bcf5ccb1d3353618a82afdf8bc Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Thu, 17 Feb 2000 19:39:52 +0000 Subject: import newlib-2000-02-17 snapshot --- newlib/libc/sys/h8300hms/crt0.S | 69 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 newlib/libc/sys/h8300hms/crt0.S (limited to 'newlib/libc/sys/h8300hms/crt0.S') diff --git a/newlib/libc/sys/h8300hms/crt0.S b/newlib/libc/sys/h8300hms/crt0.S new file mode 100644 index 000000000..94a4e2948 --- /dev/null +++ b/newlib/libc/sys/h8300hms/crt0.S @@ -0,0 +1,69 @@ +; h8/300 and h8/300h start up file. + +#ifdef __H8300__ + + .section .text + .global _start +_start: + mov.w #_stack,sp + mov.w #_edata,r0 + mov.w #_end,r1 + mov.w #0,r2 +.loop: mov.w r2,@r0 + adds #2,r0 + cmp r1,r0 + blo .loop + jsr @___main + jsr @_main + jsr @_exit + + .section .stack +_stack: .word 1 + +#endif + +#ifdef __H8300H__ + + .h8300h + .section .text + .global _start +_start: + mov.l #_stack,sp + mov.l #_edata,er0 + mov.l #_end,er1 + mov.w #0,r2 ; not sure about alignment requirements +.loop: mov.w r2,@er0 ; playing it safe for now + adds #2,er0 + cmp.l er1,er0 + blo .loop + jsr @___main + jsr @_main + jsr @_exit + + .section .stack +_stack: .long 1 + +#endif + +#ifdef __H8300S__ + + .h8300s + .section .text + .global _start +_start: + mov.l #_stack,sp + mov.l #_edata,er0 + mov.l #_end,er1 + mov.w #0,r2 ; not sure about alignment requirements +.loop: mov.w r2,@er0 ; playing it safe for now + adds #2,er0 + cmp.l er1,er0 + blo .loop + jsr @___main + jsr @_main + jsr @_exit + + .section .stack +_stack: .long 1 + +#endif -- cgit v1.2.3