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49 lines
1.1 KiB
ArmAsm
49 lines
1.1 KiB
ArmAsm
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/* This is a simple version of setjmp and longjmp.
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Ian Lance Taylor, Cygnus Support, 15 July 1993. */
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/* We need to save the address of the return instruction, which is in
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r1, as well as general register r14 through r25. If we are
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compiling for the 88110 with the extended register file, we also
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need to save registers x22 through x29. The jmp_buf should be 52
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bytes long in the one case, 84 bytes in the other. */
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/* int setjmp (jmp_buf); */
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globl _setjmp
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_setjmp:
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st r1,r2,0
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st.d r14,r2,4
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st.d r16,r2,12
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st.d r18,r2,20
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st.d r20,r2,28
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st.d r22,r2,36
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st.d r24,r2,44
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#ifdef __m88110__
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/* These instructions are just a guess, and gas doesn't
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support them anyhow. */
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st.d x22,r2,52
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st.d x24,r2,60
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st.d x26,r2,68
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st.d x28,r2,76
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#endif
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jmp r1
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global _longjmp
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_longjmp:
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ld r1,r2,0
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ld.d r14,r2,4
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ld.d r16,r2,12
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ld.d r18,r2,20
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ld.d r20,r2,28
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ld.d r22,r2,36
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ld.d r24,r2,44
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#ifdef __m88110__
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/* These instructions are just a guess, and gas doesn't
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support them anyhow. */
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ld.d x22,r2,52
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ld.d x24,r2,60
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ld.d x26,r2,68
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ld.d x28,r2,76
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#endif
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jmp r1
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