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https://github.com/pkivolowitz/asm_book.git
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44 lines
1.1 KiB
ArmAsm
44 lines
1.1 KiB
ArmAsm
#include "apple-linux-convergence.S"
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// STRUCT DEFINITION WORKS ONLY FOR LINUX
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GLABEL main
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.text
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.p2align 2
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MAIN
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PUSH_P x29, x30
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mov x29, sp
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LLD_ADDR x0, fmt
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LLD_ADDR x1, bar
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ldrh w2, [x1, Foo.a]
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ldrb w3, [x1, Foo.b]
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ldr w4, [x1, Foo.c]
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#if defined(__APPLE__)
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PUSH_P x3, x4
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PUSH_P x1, x2
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CRT printf
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add sp, sp, 32
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#else
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CRT printf
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#endif
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POP_P x29, x30
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mov w0, wzr
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ret
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.section Foo
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.struct 0 // a starts at 0 and goes for 2
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Foo.a: .struct Foo.a + 2 // b starts at 2 and goes for 2
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Foo.b: .struct Foo.b + 2 // c starts at 4
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Foo.c:
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.data
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fmt: .asciz "%p a: 0x%lx b: %x c: %x\n"
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bar: .short 0xaaaa
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.byte 0xbb
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.byte 0 // padding
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.word 0xcccccccc
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.end
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