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| <h4 class="subsection">9.41.1 Options</h4> |
| |
| <p><a name="index-V850-options-_0028none_0029-1940"></a><a name="index-options-for-V850-_0028none_0029-1941"></a><code>as</code> supports the following additional command-line options |
| for the V850 processor family: |
| |
| <p><a name="index-command-line-options_002c-V850-1942"></a><a name="index-V850-command-line-options-1943"></a> |
| |
| <a name="index-g_t_0040code_007b_002dwsigned_005foverflow_007d-command-line-option_002c-V850-1944"></a> |
| <dl><dt><code>-wsigned_overflow</code><dd>Causes warnings to be produced when signed immediate values overflow the |
| space available for then within their opcodes. By default this option |
| is disabled as it is possible to receive spurious warnings due to using |
| exact bit patterns as immediate constants. |
| |
| <p><a name="index-g_t_0040code_007b_002dwunsigned_005foverflow_007d-command-line-option_002c-V850-1945"></a><br><dt><code>-wunsigned_overflow</code><dd>Causes warnings to be produced when unsigned immediate values overflow |
| the space available for then within their opcodes. By default this |
| option is disabled as it is possible to receive spurious warnings due to |
| using exact bit patterns as immediate constants. |
| |
| <p><a name="index-g_t_0040code_007b_002dmv850_007d-command-line-option_002c-V850-1946"></a><br><dt><code>-mv850</code><dd>Specifies that the assembled code should be marked as being targeted at |
| the V850 processor. This allows the linker to detect attempts to link |
| such code with code assembled for other processors. |
| |
| <p><a name="index-g_t_0040code_007b_002dmv850e_007d-command-line-option_002c-V850-1947"></a><br><dt><code>-mv850e</code><dd>Specifies that the assembled code should be marked as being targeted at |
| the V850E processor. This allows the linker to detect attempts to link |
| such code with code assembled for other processors. |
| |
| <p><a name="index-g_t_0040code_007b_002dmv850e1_007d-command-line-option_002c-V850-1948"></a><br><dt><code>-mv850e1</code><dd>Specifies that the assembled code should be marked as being targeted at |
| the V850E1 processor. This allows the linker to detect attempts to link |
| such code with code assembled for other processors. |
| |
| <p><a name="index-g_t_0040code_007b_002dmv850any_007d-command-line-option_002c-V850-1949"></a><br><dt><code>-mv850any</code><dd>Specifies that the assembled code should be marked as being targeted at |
| the V850 processor but support instructions that are specific to the |
| extended variants of the process. This allows the production of |
| binaries that contain target specific code, but which are also intended |
| to be used in a generic fashion. For example libgcc.a contains generic |
| routines used by the code produced by GCC for all versions of the v850 |
| architecture, together with support routines only used by the V850E |
| architecture. |
| |
| <p><a name="index-g_t_0040code_007b_002dmv850e2_007d-command-line-option_002c-V850-1950"></a><br><dt><code>-mv850e2</code><dd>Specifies that the assembled code should be marked as being targeted at |
| the V850E2 processor. This allows the linker to detect attempts to link |
| such code with code assembled for other processors. |
| |
| <p><a name="index-g_t_0040code_007b_002dmv850e2v3_007d-command-line-option_002c-V850-1951"></a><br><dt><code>-mv850e2v3</code><dd>Specifies that the assembled code should be marked as being targeted at |
| the V850E2V3 processor. This allows the linker to detect attempts to link |
| such code with code assembled for other processors. |
| |
| <p><a name="index-g_t_0040code_007b_002dmrelax_007d-command-line-option_002c-V850-1952"></a><br><dt><code>-mrelax</code><dd>Enables relaxation. This allows the .longcall and .longjump pseudo |
| ops to be used in the assembler source code. These ops label sections |
| of code which are either a long function call or a long branch. The |
| assembler will then flag these sections of code and the linker will |
| attempt to relax them. |
| |
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