; setjmp/longjmp for D10V. The jmpbuf looks like this:
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; setjmp/longjmp for D10V. The jmpbuf looks like this:
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;
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;
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; Register jmpbuf offset
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; Register jmpbuf offset
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; R6 0x00
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; R6 0x00
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; R7 0x02
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; R7 0x02
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; R8 0x04
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; R8 0x04
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; R9 0x06
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; R9 0x06
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; R10 0x08
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; R10 0x08
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; R11 0x0a
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; R11 0x0a
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; R13 (return address) 0x0c
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; R13 (return address) 0x0c
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; R15 (SP) 0x0E
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; R15 (SP) 0x0E
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|
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.text
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.text
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.globl setjmp
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.globl setjmp
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.type setjmp,@function
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.type setjmp,@function
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.stabs "setjmp.S",100,0,0,setjmp
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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 "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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.stabs "setjmp:F(0,1)",36,0,1,setjmp
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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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; Address of jmpbuf is passed in R0. Save the appropriate registers.
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st2w r6, @r0+
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st2w r6, @r0+
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st2w r8, @r0+
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st2w r8, @r0+
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st2w r10, @r0+
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st2w r10, @r0+
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st r13, @r0+
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st r13, @r0+
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st r15, @r0+
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st r15, @r0+
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|
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; Return 0 to caller
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; Return 0 to caller
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ldi r0, 0
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ldi r0, 0
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jmp r13
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jmp r13
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.Lsetjmp:
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.Lsetjmp:
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.size setjmp,.Lsetjmp-setjmp
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.size setjmp,.Lsetjmp-setjmp
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.stabs "",36,0,0,.Lsetjmp-setjmp
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.stabs "",36,0,0,.Lsetjmp-setjmp
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|
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.globl longjmp
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.globl longjmp
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.type longjmp,@function
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.type longjmp,@function
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.stabs "longjmp:F(0,1)",36,0,1,longjmp
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.stabs "longjmp:F(0,1)",36,0,1,longjmp
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longjmp:
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longjmp:
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; Address of jmpbuf is in R0. Restore the registers.
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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 r6, @r0+
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ld2w r8, @r0+
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ld2w r8, @r0+
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ld2w r10, @r0+
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ld2w r10, @r0+
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ld r13, @r0+
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ld r13, @r0+
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ld r15, @r0+
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ld r15, @r0+
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|
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; Value to return to caller is in R1. If caller attemped to return 0,
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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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; return 1 instead.
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|
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mv r0, r1
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mv r0, r1
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cmpeqi r0, 0
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cmpeqi r0, 0
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exef0t || ldi r0,1
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exef0t || ldi r0,1
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jmp r13
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jmp r13
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.Llongjmp:
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.Llongjmp:
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.size longjmp,.Llongjmp-longjmp
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.size longjmp,.Llongjmp-longjmp
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.stabs "",36,0,0,.Llongjmp-longjmp
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.stabs "",36,0,0,.Llongjmp-longjmp
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|
