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| author | Nick Clifton <nickc@redhat.com> | 1997-09-02 23:03:19 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 1997-09-02 23:03:19 +0000 |
| commit | 19ebb9e3b87d56e467af168b46e74aab183e1a0c (patch) | |
| tree | 81b197559e173d1de25c3665fa940b698d87d72e | |
| parent | ccf107185ddeb528a78477da60102d721edbb398 (diff) | |
| download | gdb-19ebb9e3b87d56e467af168b46e74aab183e1a0c.zip gdb-19ebb9e3b87d56e467af168b46e74aab183e1a0c.tar.gz gdb-19ebb9e3b87d56e467af168b46e74aab183e1a0c.tar.bz2 | |
Explanations of offsets in SDA/ZDA areas fixed.
| -rw-r--r-- | gas/ChangeLog | 3 | ||||
| -rw-r--r-- | gas/doc/c-v850.texi | 20 |
2 files changed, 18 insertions, 5 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 139d0be..f294ccc 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,8 @@ Tue Sep 2 15:58:52 1997 Nick Clifton <nickc@cygnus.com> + * doc/c-v850.texi: Explanations of offsets in SDA/ZDA areas + correcetd. + * config/tc-v850.c: Add support for SDA/TDA/ZDA sections. (v850_reloc_prefix): Duplicate code eliminated. Add code to recognise special instructions. diff --git a/gas/doc/c-v850.texi b/gas/doc/c-v850.texi index 27954be..d80cdb1 100644 --- a/gas/doc/c-v850.texi +++ b/gas/doc/c-v850.texi @@ -221,22 +221,30 @@ loads the contents of the location pointed to by the label '_a_variable' into register 6, provided that the label is located somewhere within +/- 32K of the address held in the GP register. [Note the linker assumes that the GP register contains a fixed address set to the address of the -label called '__gp']. +label called '__gp'. This can either be set up automatically by the +linker, or specifically set by using the @samp{--defsym __gp=<value>} +command line option]. @cindex @code{tdaoff} pseudo-op, V850 @item tdaoff() Computes the offset of the named variable from the start of the Tiny Data Area (whoes address is held in register 30, the EP register) and -stores the result as a 4,5,7 or 8 bit unsigned value in the immediate +stores the result as a +@c start-santize-v850e +4,5, +@c end-santize-v850e +7 or 8 bit unsigned value in the immediate operand field of the given instruction. For example: @samp{sld.w tdaoff(_a_variable)[ep],r6} loads the contents of the location pointed to by the label '_a_variable' -into register 6, provided that the label is located somewhere within 256 +into register 6, provided that the label is located somewhere within +256 bytes of the address held in the EP register. [Note the linker assumes that the EP register contains a fixed address set to the address of the -label called '__ep']. +label called '__ep'. This can either be set up automatically by the +linker, or specifically set by using the @samp{--defsym __ep=<value>} +command line option]. @cindex @code{zdaoff} pseudo-op, V850 @item zdaoff() @@ -247,7 +255,9 @@ given instruction. For example: @samp{movea zdaoff(_a_variable),zero,r6} puts the address of the label '_a_variable' into register 6, assuming -that the label is somewhere within the first 32K of memory. +that the label is somewhere within the first 32K of memory. (Strictly +speaking it also possible to access the last 32K of memory as well, as +the offsets are signed). @end table |