diff options
| author | Eric Andersen <andersen@codepoet.org> | 2001-01-12 10:16:05 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2001-01-12 10:16:05 +0000 |
| commit | 77879554671206102471bb282accb3251395d151 (patch) | |
| tree | 4bc8854140028577b324e3ddaf05d043744618a3 /libc/sysdeps/linux/m68k/setjmp.S | |
| parent | e4492b9c21b645018b2d7702665be8c1eb4a1b5c (diff) | |
Thanks to James Graves <jgraves@deltamobile.com>, we now have
a first pass at getting m68k working. It may have some problems,
but should now be fairly close.
Diffstat (limited to 'libc/sysdeps/linux/m68k/setjmp.S')
| -rw-r--r-- | libc/sysdeps/linux/m68k/setjmp.S | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/m68k/setjmp.S b/libc/sysdeps/linux/m68k/setjmp.S new file mode 100644 index 000000000..3ff05425f --- /dev/null +++ b/libc/sysdeps/linux/m68k/setjmp.S @@ -0,0 +1,88 @@ +/* These are predefined by new versions of GNU cpp. */ + +#ifndef __USER_LABEL_PREFIX__ +#define __USER_LABEL_PREFIX__ _ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ +#endif + +/* ANSI concatenation macros. */ + +#define CONCAT1(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a ## b + +/* Use the right prefix for global labels. */ + +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) + +/* Use the right prefix for registers. */ + +#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) + +#define d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define fp REG (fp) +#define sp REG (sp) + +.global SYM (setjmp) +.global SYM (longjmp) + +SYM (setjmp): + moveal sp@(4),a0 + movel sp@(0),a0@(12) + movel sp,a0@(8) + moveml d2-d7/a2-a6,a0@(20) + clrl d0 + rts + +SYM (longjmp): + moveal sp@(4),a0 + movel sp@(8),d0 + bne 1f + movel #1,d0 +1: + moveml a0@(20),d2-d7/a2-a6 + moveal a0@(8),sp + movel a0@(12),sp@ + rts + +#ifdef M68881 +.global SYM (setjmp_68881) +.global SYM (longjmp_68881) + +SYM (setjmp_68881): + moveal sp@(4),a0 + movel sp@(0),a0@(12) + movel sp,a0@(8) + moveml d2-d7/a2-a6,a0@(20) + fmovemx fp2-fp7,a0@(64) + clrl d0 + rts + +SYM (longjmp_68881): + moveal sp@(4),a0 + fmovemx a0@(64),fp2-fp7 + movel sp@(8),d0 + bne 1f + movel #1,d0 +1: + moveml a0@(20),d2-d7/a2-a6 + moveal a0@(8),sp + movel a0@(12),sp@ + rts +#endif |