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py/emitinlinerv32: Add inline assembler support for RV32.

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This commit adds support for writing inline assembler functions when
targeting a RV32IMC processor.

Given that this takes up a bit of rodata space due to its large
instruction decoding table and its extensive error messages, it is
enabled by default only on offline targets such as mpy-cross and the
qemu port.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
This commit is contained in:
Alessandro Gatti
2024-08-25 16:28:35 +02:00
committed by Damien George
parent 3044233ea3
commit 268acb714d
47 changed files with 2649 additions and 45 deletions
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7
py/mpconfig.h
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@@ -411,6 +411,11 @@
#define MICROPY_EMIT_RV32 (0)
#endif
// Whether to enable the RISC-V RV32 inline assembler
#ifndef MICROPY_EMIT_INLINE_RV32
#define MICROPY_EMIT_INLINE_RV32 (0)
#endif
// Convenience definition for whether any native emitter is enabled
#define MICROPY_EMIT_NATIVE (MICROPY_EMIT_X64 || MICROPY_EMIT_X86 || MICROPY_EMIT_THUMB || MICROPY_EMIT_ARM || MICROPY_EMIT_XTENSA || MICROPY_EMIT_XTENSAWIN || MICROPY_EMIT_RV32 || MICROPY_EMIT_NATIVE_DEBUG)
@@ -420,7 +425,7 @@
#define MICROPY_EMIT_NATIVE_PRELUDE_SEPARATE_FROM_MACHINE_CODE (MICROPY_EMIT_XTENSAWIN)
// Convenience definition for whether any inline assembler emitter is enabled
#define MICROPY_EMIT_INLINE_ASM (MICROPY_EMIT_INLINE_THUMB || MICROPY_EMIT_INLINE_XTENSA)
#define MICROPY_EMIT_INLINE_ASM (MICROPY_EMIT_INLINE_THUMB || MICROPY_EMIT_INLINE_XTENSA || MICROPY_EMIT_INLINE_RV32)
// Convenience definition for whether any native or inline assembler emitter is enabled
#define MICROPY_EMIT_MACHINE_CODE (MICROPY_EMIT_NATIVE || MICROPY_EMIT_INLINE_ASM)