diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-01-10 17:07:08 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-01-10 17:07:08 +0000 |
| commit | 90e6b048365950416419c031f2f2d9a8afb5b70c (patch) | |
| tree | 9be821f3d0abf5d9773bb1d4f57f013be445fdac /arch/arm/vfp/vfpdouble.c | |
| parent | 198a6d5a6189501e2b8abf4e3149ccb337866f65 (diff) | |
[ARM] vfp: fix fuitod/fsitod instructions
These two instructions exceptionally take a single precision register
as their operand. This means we can't use vfp_get_dm() to read the
register number - we need to use vfp_get_sm() instead. Add a flag to
indicate this exception to the general rule.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/vfp/vfpdouble.c')
| -rw-r--r-- | arch/arm/vfp/vfpdouble.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c index 190a09ad18e..6cac43bd1d8 100644 --- a/arch/arm/vfp/vfpdouble.c +++ b/arch/arm/vfp/vfpdouble.c @@ -668,8 +668,8 @@ static struct op fops_ext[32] = { [FEXT_TO_IDX(FEXT_FCMPZ)] = { vfp_double_fcmpz, OP_SCALAR }, [FEXT_TO_IDX(FEXT_FCMPEZ)] = { vfp_double_fcmpez, OP_SCALAR }, [FEXT_TO_IDX(FEXT_FCVT)] = { vfp_double_fcvts, OP_SCALAR|OP_SD }, - [FEXT_TO_IDX(FEXT_FUITO)] = { vfp_double_fuito, OP_SCALAR }, - [FEXT_TO_IDX(FEXT_FSITO)] = { vfp_double_fsito, OP_SCALAR }, + [FEXT_TO_IDX(FEXT_FUITO)] = { vfp_double_fuito, OP_SCALAR|OP_SM }, + [FEXT_TO_IDX(FEXT_FSITO)] = { vfp_double_fsito, OP_SCALAR|OP_SM }, [FEXT_TO_IDX(FEXT_FTOUI)] = { vfp_double_ftoui, OP_SCALAR|OP_SD }, [FEXT_TO_IDX(FEXT_FTOUIZ)] = { vfp_double_ftouiz, OP_SCALAR|OP_SD }, [FEXT_TO_IDX(FEXT_FTOSI)] = { vfp_double_ftosi, OP_SCALAR|OP_SD }, @@ -1128,7 +1128,7 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) u32 exceptions = 0; unsigned int dest; unsigned int dn = vfp_get_dn(inst); - unsigned int dm = vfp_get_dm(inst); + unsigned int dm; unsigned int vecitr, veclen, vecstride; struct op *fop; @@ -1146,6 +1146,14 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) dest = vfp_get_dd(inst); /* + * f[us]ito takes a sN operand, not a dN operand. + */ + if (fop->flags & OP_SM) + dm = vfp_get_sm(inst); + else + dm = vfp_get_dm(inst); + + /* * If destination bank is zero, vector length is always '1'. * ARM DDI0100F C5.1.3, C5.3.2. */ |