52 lines
820 B
ArmAsm
52 lines
820 B
ArmAsm
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/* This is a simple version of setjmp and longjmp for iq2000. */
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/* int setjmp (jmp_buf); */
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.globl setjmp
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.ent setjmp
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setjmp:
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sw r16,0(r4) /* rs0 */
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sw r17,4(r4) /* rs1 */
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sw r18,8(r4) /* rs2 */
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sw r19,12(r4) /* rs3 */
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sw r20,16(r4) /* rs4 */
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sw r21,20(r4) /* rs5 */
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sw r22,24(r4) /* rs6 */
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sw r23,28(r4) /* rs7 */
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sw r30,32(r4) /* rs8 */
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sw r29,36(r4)
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sw r31,40(r4)
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move r2,r0
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j r31
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.end setjmp
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/* volatile void longjmp (jmp_buf, int); */
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.globl longjmp
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.ent longjmp
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longjmp:
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lw r16,0(r4) /* rs0 */
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lw r17,4(r4) /* rs1 */
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lw r18,8(r4) /* rs2 */
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lw r19,12(r4) /* rs3 */
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lw r20,16(r4) /* rs4 */
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lw r21,20(r4) /* rs5 */
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lw r22,24(r4) /* rs6 */
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lw r23,28(r4) /* rs7 */
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lw r30,32(r4) /* rs8 */
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lw r29,36(r4)
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lw r31,40(r4)
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bne r5,r0,1f
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li r5,1
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1:
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move r2,r5
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j r31
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.end longjmp
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