source: buchla-68k/include/setjmp.h@ cbe2c15

Last change on this file since cbe2c15 was f40a309, checked in by Thomas Lopatic <thomas@…>, 7 years ago

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File size: 1018 bytes
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1/*
2 =============================================================================
3 setjmp.h -- header for setjmp() and longjmp() functions
4 Version 1 -- 1987-06-11 -- D.N. Lynx Crowe
5
6 Registers a0 and d0 are assumed to be scratch registers,
7 and are not saved by these functions.
8
9 Register d0 is usually used as the return value register.
10 Exception: Motorola C uses a0 for the return value if it's a pointer.
11
12 This is true of most C compilers for the 68000, including:
13 Digital Research / Alcyon, Lattice, Aztec / Manx, Greenhills, Motorola.
14 =============================================================================
15*/
16
17struct JMP_BUF { /* setjmp() / longjmp() environment structure */
18
19 long jmpret; /* return address */
20
21 long jmp_d1; /* data registers */
22 long jmp_d2;
23 long jmp_d3;
24 long jmp_d4;
25 long jmp_d5;
26 long jmp_d6;
27 long jmp_d7;
28
29 long jmp_a1; /* address registers */
30 long jmp_a2;
31 long jmp_a3;
32 long jmp_a4;
33 long jmp_a5;
34 long jmp_a6;
35 long jmp_a7;
36};
37
38typedef struct JMP_BUF jmp_buf;
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