Small Device C Compiler (SDCC) / Feature Requests / #1019 Implement structreturn of size >8 for MOS6502

The Small Device C Compiler (SDCC), targeting 8-bit architectures

#1019 Implement structreturn of size >8 for MOS6502

Milestone: None

Status: open

Owner: nobody

Labels: mos6502 (2) struct (1)

Priority: 5

Updated: 2026-05-16

Created: 2026-05-03

Creator: Philipp Klaus Krause

Private: No

For a few test cases of returning struct, I see mos6502 fail at assembly time ("Error: <o> .org in REL area or directive / mnemonic error"). To reproduce, enable any of the following three regression tests for mos6502: gte/pr30185, gte/pr58365, tests/gcc-torture-execute-20001026-1 for mos6502.</o>

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Gabriele Gorla - 2026-05-08

All 3 tests use struct return of size >8 which is not currently supported.

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Gabriele Gorla - 2026-05-08

Category: other --> MOS6502
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Philipp Klaus Krause - 2026-05-08

Ticket moved from /p/sdcc/bugs/3982/

Can't be converted:

_category: MOS6502
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Gabriele Gorla - 2026-05-16

summary: mos6502 struct return issue - invalid asm? --> Implement mos6502 structreturn of size >8

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Gabriele Gorla - 2026-05-16

summary: Implement mos6502 structreturn of size >8 --> Implement structreturn of size >8 for MOS6502
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Implement structreturn of size >8 for MOS6502

The Small Device C Compiler (SDCC), targeting 8-bit architectures

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#1019 Implement structreturn of size >8 for MOS6502

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