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https://github.com/ruby/ruby.git
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74 lines
1.2 KiB
ArmAsm
74 lines
1.2 KiB
ArmAsm
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#define TOKEN_PASTE(x,y) x##y
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#define PREFIXED_SYMBOL(prefix,name) TOKEN_PASTE(prefix,name)
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.text
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.align 2
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.globl PREFIXED_SYMBOL(SYMBOL_PREFIX,coroutine_transfer)
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PREFIXED_SYMBOL(SYMBOL_PREFIX,coroutine_transfer):
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# Make space on the stack for caller registers
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addi r1,r1,-80
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# Save caller registers
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stw r13,0(r1)
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stw r14,4(r1)
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stw r15,8(r1)
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stw r16,12(r1)
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stw r17,16(r1)
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stw r18,20(r1)
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stw r19,24(r1)
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stw r20,28(r1)
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stw r21,32(r1)
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stw r22,36(r1)
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stw r23,40(r1)
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stw r24,44(r1)
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stw r25,48(r1)
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stw r26,52(r1)
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stw r27,56(r1)
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stw r28,60(r1)
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stw r29,64(r1)
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stw r30,68(r1)
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stw r31,72(r1)
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# Save return address
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mflr r0
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stw r0,76(r1)
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# Save stack pointer to first argument
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stw r1,0(r3)
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# Load stack pointer from second argument
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lwz r1,0(r4)
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# Restore caller registers
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lwz r13,0(r1)
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lwz r14,4(r1)
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lwz r15,8(r1)
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lwz r16,12(r1)
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lwz r17,16(r1)
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lwz r18,20(r1)
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lwz r19,24(r1)
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lwz r20,28(r1)
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lwz r21,32(r1)
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lwz r22,36(r1)
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lwz r23,40(r1)
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lwz r24,44(r1)
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lwz r25,48(r1)
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lwz r26,52(r1)
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lwz r27,56(r1)
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lwz r28,60(r1)
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lwz r29,64(r1)
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lwz r30,68(r1)
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lwz r31,72(r1)
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# Load return address
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lwz r0,76(r1)
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mtlr r0
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# Pop stack frame
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addi r1,r1,80
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# Jump to return address
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blr
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