diff options
Diffstat (limited to 'gas/doc')
| -rw-r--r-- | gas/doc/as.texinfo | 11 | ||||
| -rw-r--r-- | gas/doc/c-mips.texi | 25 |
2 files changed, 36 insertions, 0 deletions
diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo index 83e35d11a6..b02a34dd4a 100644 --- a/gas/doc/as.texinfo +++ b/gas/doc/as.texinfo @@ -412,6 +412,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}. [@b{-mdspr2}] [@b{-mno-dspr2}] [@b{-mmt}] [@b{-mno-mt}] [@b{-mmcu}] [@b{-mno-mcu}] + [@b{-minsn32}] [@b{-mno-insn32}] [@b{-mfix7000}] [@b{-mno-fix7000}] [@b{-mfix-vr4120}] [@b{-mno-fix-vr4120}] [@b{-mfix-vr4130}] [@b{-mno-fix-vr4130}] @@ -1341,6 +1342,16 @@ Generate code for the MCU Application Specific Extension. This tells the assembler to accept MCU instructions. @samp{-mno-mcu} turns off this option. +@item -minsn32 +@itemx -mno-insn32 +Only use 32-bit instruction encodings when generating code for the +microMIPS processor. This option inhibits the use of any 16-bit +instructions. This is equivalent to putting @code{.set insn32} at +the start of the assembly file. @samp{-mno-insn32} turns off this +option. This is equivalent to putting @code{.set noinsn32} at the +start of the assembly file. By default @samp{-mno-insn32} is +selected, allowing all instructions to be used. + @item --construct-floats @itemx --no-construct-floats The @samp{--no-construct-floats} option disables the construction of diff --git a/gas/doc/c-mips.texi b/gas/doc/c-mips.texi index 5b46ff6703..27d0407275 100644 --- a/gas/doc/c-mips.texi +++ b/gas/doc/c-mips.texi @@ -27,6 +27,7 @@ Assembly Language Programming'' in the same work. * MIPS Symbol Sizes:: Directives to override the size of symbols * MIPS Small Data:: Controlling the use of small data accesses * MIPS ISA:: Directives to override the ISA level +* MIPS assembly options:: Directives to control code generation * MIPS autoextend:: Directives for extending MIPS 16 bit instructions * MIPS insn:: Directive to mark data as an instruction * MIPS Option Stack:: Directives to save and restore options @@ -186,6 +187,16 @@ Generate code for the Virtualization Application Specific Extension. This tells the assembler to accept Virtualization instructions. @samp{-mno-virt} turns off this option. +@item -minsn32 +@itemx -mno-insn32 +Only use 32-bit instruction encodings when generating code for the +microMIPS processor. This option inhibits the use of any 16-bit +instructions. This is equivalent to putting @code{.set insn32} at +the start of the assembly file. @samp{-mno-insn32} turns off this +option. This is equivalent to putting @code{.set noinsn32} at the +start of the assembly file. By default @samp{-mno-insn32} is +selected, allowing all instructions to be used. + @item -mfix7000 @itemx -mno-fix7000 Cause nops to be inserted if the read of the destination register @@ -649,6 +660,20 @@ in which it will assemble instructions for the microMIPS processor. Use Traditional MIPS assemblers do not support this directive. +@node MIPS assembly options +@section Directives to control code generation + +@cindex MIPS 32-bit microMIPS instruction generation override +@kindex @code{.set insn32} +@kindex @code{.set noinsn32} +The directive @code{.set insn32} makes the assembler only use 32-bit +instruction encodings when generating code for the microMIPS processor. +This directive inhibits the use of any 16-bit instructions from that +point on in the assembly. The @code{.set noinsn32} directive allows +16-bit instructions to be accepted. + +Traditional MIPS assemblers do not support this directive. + @node MIPS autoextend @section Directives for extending MIPS 16 bit instructions |