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authorJeff Johnston <jjohnstn@redhat.com>2009-04-22 23:48:07 +0400
committerJeff Johnston <jjohnstn@redhat.com>2009-04-22 23:48:07 +0400
commitbc6b90cc1046dbb18f9a7c2b7411e91593d4b175 (patch)
tree570c8d89f63ad8f8784b735fb2c019ca15cce289 /libgloss/moxie/sim-read.S
parent96baa3e74ab8bacb3ba3caa6863dfcc01e542883 (diff)
2009-04-22 Anthony Green <green@moxielogic.com>
* configure.in: Add moxie support. * configure: Regenerate. * moxie/aclocal.m4, moxie/configure, moxie/configure.in, moxie/crt0.S, moxie/fstat.c, moxie/getpid.c, isatty.c, moxie/kill.c, moxie/Makefile.in, moxie/moxie-elf-common.ld, moxie/print.c, moxie/putnum.c, moxie/qemu.ld, moxie/qemu-time.c, moxie/qemu-write.c, moxie/sbrk.c, moxie/sim-close.S, moxie/sim-exit.S, moxie/sim-inbyte.c, moxie/sim.ld, moxie/sim-lseek.c, moxie/sim-lseek.S, moxie/sim-open.S, moxie/sim-read.S, moxie/sim-time.c, moxie/sim-unlink.S, moxie/sim-write.S, moxie/stat.c: New files.
Diffstat (limited to 'libgloss/moxie/sim-read.S')
-rw-r--r--libgloss/moxie/sim-read.S39
1 files changed, 39 insertions, 0 deletions
diff --git a/libgloss/moxie/sim-read.S b/libgloss/moxie/sim-read.S
new file mode 100644
index 000000000..58cf175c3
--- /dev/null
+++ b/libgloss/moxie/sim-read.S
@@ -0,0 +1,39 @@
+/*
+ * sim-read.S -- read interface for moxie simulator
+ *
+ * Copyright (c) 2008 Anthony Green
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include "syscall.h"
+
+/*
+ * Input:
+ * $r0 -- File descriptor.
+ * $r1 -- Buffer to be read into.
+ * -0x12($fp) -- Length of the buffer.
+ *
+ * Output:
+ * $r0 -- Length read or -1.
+ * errno -- Set if an error
+ */
+
+ .globl _read
+ .type _read,@function
+ .weak read
+ .text
+_read:
+read:
+ swi SYS_read
+ ret
+.Lend:
+ .size _read,.Lend-_read