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2003-02-18 Christian Groessler <chris@groessler.org> 

* libc/machine/z8k/setjmp.S (_setjmp / _longjmp): Fix to
        support z8001 segmented mode.
This commit is contained in:
Jeff Johnston 2003-02-18 22:41:16 +00:00
parent b1ca765e84
commit 1e810ba04d
2 changed files with 44 additions and 6 deletions
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5
newlib/ChangeLog
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@ -1,3 +1,8 @@
2003-02-18 Christian Groessler <chris@groessler.org>
* libc/machine/z8k/setjmp.S (_setjmp / _longjmp): Fix to
support z8001 segmented mode.
2003-02-18 Earnie Boyd <earnie@users.sf.net>
* libc/stdlib/mallocr.c (unlink): Don't assign a value to a pointer

45
newlib/libc/machine/z8k/setjmp.S
View File

@ -3,27 +3,62 @@
segm
.global _setjmp
.globl _longjmp
#ifdef __STD_CALL__
_setjmp:
ldl rr6,rr14(#4) ! get argument
ldl rr2,@rr14 ! fetch pc
ldl @rr6,rr2 ! save it
ldl rr6(#16),rr8
ldl rr6(#4),rr10
ldl rr6(#8),rr12 ! remember frame pointer
ldl rr6(#12),rr14 ! remember stack pointer
ldk r7,#0
ret t
_longjmp:
ldl rr4,rr14(#4) ! get first argument
ld r7,rr14(#8) ! get return value
ldl rr8,rr4(#16)
ldl rr10,rr4(#4)
ldl rr12,rr4(#8) ! restore old frame pointer
ldl rr14,rr4(#12) ! restore old stack pointer
ldl rr4,@rr4 ! return address
inc r15,#4
jp @rr4
#else /* above __STD_CALL_, below not */
_setjmp:
ldl rr2,@rr14 ! fetch pc
ldl @rr6,rr2 ! save it
ldl rr6(16),rr8
ldl rr6(4),rr10
ldl rr6(8),rr12 ! and the other special regs
ldl rr6(12),rr14
ldk r2,#0
ret t
.globl _longjmp
_longjmp:
ld r2,r5 ! get return value
ldl rr4,rr6(0)
ldl rr8,rr6(16)
ldl rr10,rr6(4)
ldl rr12,rr6(8)
ldl rr14,rr6(12)
inc r15,#4
jp @rr4
#else
#endif /* not __STD_CALL__ */
#else /* above Z8001, below Z8002 */
unseg
#ifdef __STD_CALL__
#warning Z8002 std call not implemented!
#endif
.global _setjmp
_setjmp:
ld r2,@r15 ! fetch pc
@ -44,6 +79,4 @@ _longjmp:
ldl rr14,rr7(12)
jp @rr4
#endif
#endif /* Z8002 version */