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30 lines
837 B
Odin
30 lines
837 B
Odin
package rexcode_mos6502
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// =============================================================================
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// MOS 6502 RELOCATIONS
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// =============================================================================
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//
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// Per the cross-arch design (§2.4): each arch owns its own Relocation_Type
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// enum and Relocation struct. The struct shape mirrors ELF rela so an
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// object emitter can consume it unchanged.
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//
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// 6502 has just two relocation kinds:
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// ABS16 — 16-bit little-endian absolute (JMP $nnnn, JSR $nnnn, LDA $nnnn, ...)
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// REL8 — signed 8-bit PC-relative branch (BEQ/BNE/.../BBR/BBS)
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Relocation_Type :: enum u8 {
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NONE = 0,
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ABS16,
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REL8,
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}
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Relocation :: struct #packed {
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offset: u32,
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label_id: u32,
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addend: i32,
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type: Relocation_Type,
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size: u8,
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inst_idx: u16,
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}
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#assert(size_of(Relocation) == 16)
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