mirror of
https://github.com/autc04/Retro68.git
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87 lines
1.1 KiB
ArmAsm
87 lines
1.1 KiB
ArmAsm
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.macro start, sym
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.type \sym, @function
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.pushsection .opd, "aw"
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\sym: .quad .L.\sym, .TOC.@tocbase, 0
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.popsection
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.L.\sym:
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mflr 0
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std 31, -8(1)
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std 0, 16(1)
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stdu 1, -128(1)
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mr 31, 1
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.endm
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.macro end, sym
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addi 1,31,128
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ld 0, 16(1)
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mtlr 0
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ld 31, -8(1)
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blr
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.size \sym, . - .L.\sym
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.endm
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.macro forward, from, to
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start \from
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bl \to
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nop
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end \from
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.endm
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.macro usegot, sym
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.pushsection .data
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\sym\@: .quad \@
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.popsection
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.pushsection .toc, "aw"
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.LT\@: .tc \sym\@[TC], \sym\@
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.popsection
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ld 3,.LT\@@toc(2)
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.endm
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.macro in123
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.pushsection .toc, "aw"
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.LThello:
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.tc hello[TC],hello
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.popsection
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.pushsection .rodata
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hello: .asciz "Hello, world!\n"
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.popsection
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.pushsection .text.in123, "axG", @progbits, in123, comdat
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.weak in123
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start in123
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ld 3, .LThello@toc(2)
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#bl printf
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nop
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end in123
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.popsection
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.endm
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.macro in23
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.pushsection .text
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forward local, in123
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.popsection
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.pushsection .text.in23, "axG", @progbits, in23, comdat
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.weak in23
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forward in23, local
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.popsection
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.endm
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.macro gobblegot, sym
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.pushsection .text
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.globl \sym
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start \sym
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.rept 5000
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usegot a
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.endr
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end \sym
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.popsection
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.endm
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