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Diffstat (limited to 'newlib/libc/sys/sysnec810/crt0.s')
-rw-r--r--newlib/libc/sys/sysnec810/crt0.s22
1 files changed, 22 insertions, 0 deletions
diff --git a/newlib/libc/sys/sysnec810/crt0.s b/newlib/libc/sys/sysnec810/crt0.s
new file mode 100644
index 00000000000..3c7a382ff6a
--- /dev/null
+++ b/newlib/libc/sys/sysnec810/crt0.s
@@ -0,0 +1,22 @@
+ .set STACKTOP, 0x100000
+
+ .extern __tp_TEXT, 4
+ .extern __gp_DATA, 4
+ .extern _main
+ .globl __start
+ .globl _exit
+ .globl __exit
+
+ .text
+__start:
+ mov 2, r10 -- set Cache Control Word
+ ldsr r10, 24 --
+#
+ mov STACKTOP, sp -- set stack pointer
+ mov #__tp_TEXT, tp -- set tp register
+ mov #__gp_DATA, gp -- set gp register offset
+ add tp, gp -- set gp register
+ jal _main -- call main function
+__exit:
+ halt -- end of the program
+