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| <h4 class="subsection">9.4.1 Options</h4> |
| |
| <p><a name="index-AVR-options-_0028none_0029-662"></a><a name="index-options-for-AVR-_0028none_0029-663"></a> |
| |
| <a name="index-g_t_0040code_007b_002dmmcu_003d_007d-command-line-option_002c-AVR-664"></a> |
| <dl><dt><code>-mmcu=</code><var>mcu</var><dd>Specify ATMEL AVR instruction set or MCU type. |
| |
| <p>Instruction set avr1 is for the minimal AVR core, not supported by the C |
| compiler, only for assembler programs (MCU types: at90s1200, |
| attiny11, attiny12, attiny15, attiny28). |
| |
| <p>Instruction set avr2 (default) is for the classic AVR core with up to |
| 8K program memory space (MCU types: at90s2313, at90s2323, at90s2333, at90s2343, |
| attiny22, attiny26, at90s4414, at90s4433, at90s4434, at90s8515, at90c8534, |
| at90s8535). |
| |
| <p>Instruction set avr25 is for the classic AVR core with up to 8K program memory |
| space plus the MOVW instruction (MCU types: attiny13, attiny13a, attiny2313, |
| attiny2313a, attiny24, attiny24a, attiny4313, attiny44, attiny44a, attiny84, |
| attiny84a, attiny25, attiny45, attiny85, attiny261, attiny261a, attiny461, |
| attiny461a, attiny861, attiny861a, attiny87, attiny43u, attiny48, attiny88, |
| at86rf401, ata6289). |
| |
| <p>Instruction set avr3 is for the classic AVR core with up to 128K program |
| memory space (MCU types: at43usb355, at76c711). |
| |
| <p>Instruction set avr31 is for the classic AVR core with exactly 128K program |
| memory space (MCU types: atmega103, at43usb320). |
| |
| <p>Instruction set avr35 is for classic AVR core plus MOVW, CALL, and JMP |
| instructions (MCU types: attiny167, at90usb82, at90usb162, atmega8u2, |
| atmega16u2, atmega32u2). |
| |
| <p>Instruction set avr4 is for the enhanced AVR core with up to 8K program |
| memory space (MCU types: atmega48, atmega48a, atmega48p, atmega8, atmega88, |
| atmega88a, atmega88p, atmega88pa, atmega8515, atmega8535, atmega8hva, at90pwm1, |
| at90pwm2, at90pwm2b, at90pwm3, at90pwm3b, at90pwm81). |
| |
| <p>Instruction set avr5 is for the enhanced AVR core with up to 128K program |
| memory space (MCU types: atmega16, atmega16a, atmega161, atmega162, atmega163, |
| atmega164a, atmega164p, atmega165, atmega165a, atmega165p, atmega168, |
| atmega168a, atmega168p, atmega169, atmega169a, atmega169p, atmega169pa, |
| atmega32, atmega323, atmega324a, atmega324p, atmega325, atmega325a, atmega325p, |
| atmega3250, atmega3250a, atmega3250p, atmega328, atmega328p, atmega329, |
| atmega329a, atmega329p, atmega329pa, atmega3290, atmega3290a, atmega3290p, |
| atmega406, atmega64, atmega640, atmega644, atmega644a, atmega644p, atmega644pa, |
| atmega645, atmega645a, atmega645p, atmega6450, atmega6450a, atmega6450p, |
| atmega649, atmega649a, atmega649p, atmega6490, atmega6490a, atmega6490p, |
| atmega16hva, atmega16hva2, atmega16hvb, atmega32hvb, atmega64hve, at90can32, |
| at90can64, at90pwm216, at90pwm316, atmega32c1, atmega64c1, atmega16m1, |
| atmega32m1, atmega64m1, atmega16u4, atmega32u4, atmega32u6, at90usb646, |
| at90usb647, at94k, at90scr100). |
| |
| <p>Instruction set avr51 is for the enhanced AVR core with exactly 128K program |
| memory space (MCU types: atmega128, atmega1280, atmega1281, atmega1284p, |
| atmega128rfa1, at90can128, at90usb1286, at90usb1287, m3000). |
| |
| <p>Instruction set avr6 is for the enhanced AVR core with a 3-byte PC (MCU types: |
| atmega2560, atmega2561). |
| |
| <p><a name="index-g_t_0040code_007b_002dmall_002dopcodes_007d-command-line-option_002c-AVR-665"></a><br><dt><code>-mall-opcodes</code><dd>Accept all AVR opcodes, even if not supported by <code>-mmcu</code>. |
| |
| <p><a name="index-g_t_0040code_007b_002dmno_002dskip_002dbug_007d-command-line-option_002c-AVR-666"></a><br><dt><code>-mno-skip-bug</code><dd>This option disable warnings for skipping two-word instructions. |
| |
| <p><a name="index-g_t_0040code_007b_002dmno_002dwrap_007d-command-line-option_002c-AVR-667"></a><br><dt><code>-mno-wrap</code><dd>This option reject <code>rjmp/rcall</code> instructions with 8K wrap-around. |
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