py/emitinlinerv32: Add inline assembler support for RV32.

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 <[email protected]>

Author: agatti

mpy-cross/mpconfigport.h

@@ -47,6 +47,7 @@
 #define MICROPY_EMIT_INLINE_XTENSA  (1)
 #define MICROPY_EMIT_XTENSAWIN      (1)
 #define MICROPY_EMIT_RV32           (1)
+#define MICROPY_EMIT_INLINE_RV32    (1)
 #define MICROPY_EMIT_NATIVE_DEBUG   (1)
 #define MICROPY_EMIT_NATIVE_DEBUG_PRINTER (&mp_stdout_print)
 

ports/qemu/Makefile

@@ -19,10 +19,10 @@ QSTR_DEFS = qstrdefsport.h
 MICROPY_ROM_TEXT_COMPRESSION ?= 1
 
 ifeq ($(QEMU_ARCH),arm)
-FROZEN_MANIFEST ?= "require('unittest'); freeze('test-frzmpy')"
+FROZEN_MANIFEST ?= "require('unittest'); freeze('test-frzmpy', ('frozen_asm_thumb.py', 'frozen_const.py', 'frozen_viper.py', 'native_frozen_align.py'))"
 endif
 ifeq ($(QEMU_ARCH),riscv32)
-FROZEN_MANIFEST ?= "require('unittest'); freeze('test-frzmpy', ('frozen_const.py', 'frozen_viper.py', 'native_frozen_align.py'))"
+FROZEN_MANIFEST ?= "require('unittest'); freeze('test-frzmpy', ('frozen_asm_rv32.py', 'frozen_const.py', 'frozen_viper.py', 'native_frozen_align.py'))"
 endif
 
 # include py core make definitions