43 lines
964 B
ArmAsm
43 lines
964 B
ArmAsm
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# uskel runtime and start; include this at the top.
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.section .init
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.global _start
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_start:
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jmp _uskel_start
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.include "include/macros.s"
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.section .bss
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_unix_rsp:
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# back-up of program entry rsp (aka the actual stack given by the
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# actual OS; we might like to use it at some point, maybe)
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cell 0
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.include "include/gc.s"
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.section .text
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_uskel_start:
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# we use the stack pointer for easy writing to the heap;
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# back it up to memory state just if we ever needed it again.
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mov %rsp, _unix_rsp
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# allocate the initial chunk of memory
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mov $_uskel_start_main, %rsi
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jmp _uskel_gc_init
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_uskel_start_main:
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# push a thunk for main
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pushq $0
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pushq $main
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mov $0, %rsi # set continuation to exit
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enter %rsp # run the program
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# Q: are there gonna be functions that have both the argument AND the cont?
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#
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# A: No, stuff is either entered as return-continuation (takes res,
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# cont has to be saved) or as forward call (takes cont)
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#
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# (A needs validation)
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