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on this file since cbe2c15 was f40a309, checked in by Thomas Lopatic <thomas@…>, 7 years ago |
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[f40a309] | 1 | /*
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| 2 | =============================================================================
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| 3 | setjmp.h -- header for setjmp() and longjmp() functions
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| 4 | Version 1 -- 1987-06-11 -- D.N. Lynx Crowe
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| 5 |
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| 6 | Registers a0 and d0 are assumed to be scratch registers,
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| 7 | and are not saved by these functions.
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| 8 |
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| 9 | Register d0 is usually used as the return value register.
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| 10 | Exception: Motorola C uses a0 for the return value if it's a pointer.
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| 11 |
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| 12 | This is true of most C compilers for the 68000, including:
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| 13 | Digital Research / Alcyon, Lattice, Aztec / Manx, Greenhills, Motorola.
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| 14 | =============================================================================
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| 15 | */
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| 16 |
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| 17 | struct JMP_BUF { /* setjmp() / longjmp() environment structure */
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| 18 |
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| 19 | long jmpret; /* return address */
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| 20 |
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| 21 | long jmp_d1; /* data registers */
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| 22 | long jmp_d2;
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| 23 | long jmp_d3;
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| 24 | long jmp_d4;
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| 25 | long jmp_d5;
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| 26 | long jmp_d6;
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| 27 | long jmp_d7;
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| 28 |
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| 29 | long jmp_a1; /* address registers */
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| 30 | long jmp_a2;
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| 31 | long jmp_a3;
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| 32 | long jmp_a4;
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| 33 | long jmp_a5;
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| 34 | long jmp_a6;
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| 35 | long jmp_a7;
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| 36 | };
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| 37 |
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| 38 | typedef struct JMP_BUF jmp_buf;
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