35 lines
787 B
ArmAsm
35 lines
787 B
ArmAsm
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.ifndef _listops_s_file
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_listops_s_file:
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.include "include/primops.s"
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# | n | list | -> cont
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.primop2 list_int_index
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needs_alloc $060
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mov 010(%rsi), %rdx # the list constructor id, must be 1
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cmp $1, %rdx
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jne list_int_index_not_found
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mov 020(%rbp), %rcx
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mov 010(%rcx), %rcx
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test %rcx, %rcx
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jz list_int_index_found # we are taking the head, all happy, return it
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# more likely, we need to continue -- make new args thunks
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sub $1, %rcx
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thunkto %r11, $INT_code, %rcx # decreased index
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thunkto %r11, $list_int_index, $2, %r11, 030(%rsi) # new call on tail
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primop2_cont_indirect %r11
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list_int_index_found:
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mov 020(%rsi), %rax #head
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primop2_cont_indirect %rax
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list_int_index_not_found:
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movq 0, %rax #fault (TODO: we should have a better fault)
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.endif # _listops_s_file
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