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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [machine/] [d10v/] [setjmp.S] - Blame information for rev 262

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Line No. Rev Author Line
1 207 jeremybenn
; setjmp/longjmp for D10V.  The jmpbuf looks like this:
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;
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; Register              jmpbuf offset
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; R6                    0x00
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; R7                    0x02
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; R8                    0x04
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; R9                    0x06
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; R10                   0x08
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; R11                   0x0a
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; R13 (return address)  0x0c
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; R15 (SP)              0x0E
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        .text
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        .globl  setjmp
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        .type   setjmp,@function
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        .stabs  "setjmp.S",100,0,0,setjmp
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        .stabs  "int:t(0,1)=r(0,1);-65536;65535;",128,0,0,0
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        .stabs  "setjmp:F(0,1)",36,0,1,setjmp
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setjmp:
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; Address of jmpbuf is passed in R0.  Save the appropriate registers.
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        st2w    r6, @r0+
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        st2w    r8, @r0+
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        st2w    r10, @r0+
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        st      r13, @r0+
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        st      r15, @r0+
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; Return 0 to caller
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        ldi     r0, 0
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        jmp     r13
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.Lsetjmp:
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        .size   setjmp,.Lsetjmp-setjmp
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        .stabs  "",36,0,0,.Lsetjmp-setjmp
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        .globl  longjmp
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        .type   longjmp,@function
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        .stabs  "longjmp:F(0,1)",36,0,1,longjmp
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longjmp:
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; Address of jmpbuf is in R0.  Restore the registers.
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        ld2w    r6, @r0+
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        ld2w    r8, @r0+
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        ld2w    r10, @r0+
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        ld      r13, @r0+
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        ld      r15, @r0+
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; Value to return to caller is in R1.  If caller attemped to return 0,
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; return 1 instead.
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        mv      r0, r1
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        cmpeqi  r0, 0
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        exef0t || ldi r0,1
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        jmp     r13
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.Llongjmp:
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        .size   longjmp,.Llongjmp-longjmp
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        .stabs  "",36,0,0,.Llongjmp-longjmp

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