add or1k (OpenRISC 1000) architecture port

With the exception of a fenv implementation, the port is fully featured.
The port has been tested in or1ksim, the golden reference functional
simulator for OpenRISC 1000.
It passes all libc-test tests (except the math tests that
requires a fenv implementation).

The port assumes an or1k implementation that has support for
atomic instructions (l.lwa/l.swa).

Although it passes all the libc-test tests, the port is still
in an experimental state, and has yet experienced very little
'real-world' use.
This commit is contained in:
Stefan Kristiansson
2014-07-17 22:09:10 +03:00
committed by Rich Felker
parent 7bece9c209
commit 200d15479c
46 changed files with 1982 additions and 1 deletions

17
arch/or1k/bits/float.h Normal file
View File

@@ -0,0 +1,17 @@
#define FLT_ROUNDS 1
#define FLT_EVAL_METHOD 0
#define LDBL_TRUE_MIN 4.94065645841246544177e-324L
#define LDBL_MIN 2.22507385850720138309e-308L
#define LDBL_MAX 1.79769313486231570815e+308L
#define LDBL_EPSILON 2.22044604925031308085e-16L
#define LDBL_MANT_DIG 53
#define LDBL_MIN_EXP (-1021)
#define LDBL_MAX_EXP 1024
#define LDBL_DIG 15
#define LDBL_MIN_10_EXP (-307)
#define LDBL_MAX_10_EXP 308
#define DECIMAL_DIG 17