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authorRich Felker <dalias@aerifal.cx>2018-06-14 14:26:30 -0400
committerRich Felker <dalias@aerifal.cx>2018-06-19 13:24:05 -0400
commitf81e44a0d96c88e052e51982f9fdd6fe0a212b46 (patch)
treee8a21317b5af5a2d09543ffcb0fbf1f0a668b63a /src/thread/m68k/__m68k_read_tp.s
parent18f02c42a2b5397e8541f4663eb6ca00c1a806dd (diff)
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add m68k port
three ABIs are supported: the default with 68881 80-bit fpu format and
results returned in floating point registers, softfloat-only with the
same format, and coldfire fpu with IEEE single/double only. only the
first is tested at all, and only under qemu which has fpu emulation
bugs.

basic functionality smoke tests have been performed for the most
common arch-specific breakage via libc-test and qemu user-level
emulation. some sysvipc failures remain, but are shared with other big
endian archs and will be fixed separately.
Diffstat (limited to 'src/thread/m68k/__m68k_read_tp.s')
-rw-r--r--src/thread/m68k/__m68k_read_tp.s8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/thread/m68k/__m68k_read_tp.s b/src/thread/m68k/__m68k_read_tp.s
new file mode 100644
index 00000000..86886da8
--- /dev/null
+++ b/src/thread/m68k/__m68k_read_tp.s
@@ -0,0 +1,8 @@
+.text
+.global __m68k_read_tp
+.type   __m68k_read_tp,@function
+__m68k_read_tp:
+	move.l #333,%d0
+	trap #0
+	move.l %d0,%a0
+	rts