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- /* 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
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