diff options
| -rw-r--r-- | gas/ChangeLog | 6 | ||||
| -rw-r--r-- | gas/doc/c-z8k.texi | 53 |
2 files changed, 42 insertions, 17 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index fadb9c3..239c95d 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,9 @@ +2003-11-07 Christian Groessler <chris@groessler.org> + + * doc/c-z8k.texi: Document command-line options. Fix byte + register names. Document '.z8001' and '.z8002' directives. + Extend addressing modes documentation. + 2003-11-07 Jonathan R. Grant <jg-binutils@jguk.org> * input-file.c (input_file_open): Use "No such file" error diff --git a/gas/doc/c-z8k.texi b/gas/doc/c-z8k.texi index d98adea..de34237 100644 --- a/gas/doc/c-z8k.texi +++ b/gas/doc/c-z8k.texi @@ -24,7 +24,7 @@ register. @xref{Z8000 Directives,,Assembler Directives for the Z8000}, for a list of other Z8000 specific assembler directives. @menu -* Z8000 Options:: No special command-line options for Z8000 +* Z8000 Options:: Command-line options for the Z8000 * Z8000 Syntax:: Assembler syntax for the Z8000 * Z8000 Directives:: Special directives for the Z8000 * Z8000 Opcodes:: Opcodes @@ -35,8 +35,15 @@ for a list of other Z8000 specific assembler directives. @cindex Z8000 options @cindex options, Z8000 -@code{@value{AS}} has no additional command-line options for the Zilog -Z8000 family. +@table @option +@cindex @code{-z8001} command line option, Z8000 +@item -z8001 +Generate segmented code by default. + +@cindex @code{-z8002} command line option, Z8000 +@item -z8002 +Generate unsegmented code by default. +@end table @node Z8000 Syntax @section Syntax @@ -68,12 +75,12 @@ to different sized groups of registers by register number, with the prefix @samp{r} for 16 bit registers, @samp{rr} for 32 bit registers and @samp{rq} for 64 bit registers. You can also refer to the contents of the first eight (of the sixteen 16 bit registers) by bytes. They are -named @samp{r@var{n}h} and @samp{r@var{n}l}. +named @samp{rl@var{n}} and @samp{rh@var{n}}. @smallexample @exdent @emph{byte registers} -r0l r0h r1h r1l r2h r2l r3h r3l -r4h r4l r5h r5l r6h r6l r7h r7l +rl0 rh0 rl1 rh1 rl2 rh2 rl3 rh3 +rl4 rh4 rl5 rh5 rl6 rh6 rl7 rh7 @exdent @emph{word registers} r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11 r12 r13 r14 r15 @@ -93,11 +100,17 @@ rq0 rq4 rq8 rq12 @value{AS} understands the following addressing modes for the Z8000: @table @code -@item r@var{n} -Register direct +@item rl@var{n} +@itemx rh@var{n} +@itemx r@var{n} +@itemx rr@var{n} +@itemx rq@var{n} +Register direct: 8bit, 16bit, 32bit, and 64bit registers. @item @@r@var{n} -Indirect register +@itemx @@rr@var{n} +Indirect register: @@rr@var{n} in segmented mode, @@r@var{n} in unsegmented +mode. @item @var{addr} Direct: the 16 bit or 24 bit address (depending on whether the assembler @@ -108,14 +121,16 @@ Indexed: the 16 or 24 bit address is added to the 16 bit register to produce the final address in memory of the operand. @item r@var{n}(#@var{imm}) +@itemx rr@var{n}(#@var{imm}) Base Address: the 16 or 24 bit register is added to the 16 bit sign extended immediate displacement to produce the final address in memory of the operand. @item r@var{n}(r@var{m}) -Base Index: the 16 or 24 bit register r@var{n} is added to the sign -extended 16 bit index register r@var{m} to produce the final address in -memory of the operand. +@itemx rr@var{n}(r@var{m}) +Base Index: the 16 or 24 bit register r@var{n} or rr@var{n} is added to +the sign extended 16 bit index register r@var{m} to produce the final +address in memory of the operand. @item #@var{xx} Immediate data @var{xx}. @@ -126,18 +141,22 @@ Immediate data @var{xx}. @cindex Z8000 directives @cindex directives, Z8000 -The Z8000 port of @value{AS} includes these additional assembler directives, -for compatibility with other Z8000 assemblers. As shown, these do not -begin with @samp{.} (unlike the ordinary @value{AS} directives). +The Z8000 port of @value{AS} includes additional assembler directives, +for compatibility with other Z8000 assemblers. These do not begin with +@samp{.} (unlike the ordinary @value{AS} directives). @table @code @kindex segm @item segm -Generates code for the segmented Z8001. +@kindex .z8001 +@itemx .z8001 +Generate code for the segmented Z8001. @kindex unsegm @item unsegm -Generates code for the unsegmented Z8002. +@kindex .z8002 +@itemx .z8002 +Generate code for the unsegmented Z8002. @kindex name @item name |