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py: Implement sdiv/udiv for inline Thumb assembler.

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Damien George
2015-02-13 10:43:05 +00:00
parent 0d967b8ae4
commit 32f0b7942c
4 changed files with 36 additions and 0 deletions
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11
py/emitinlinethumb.c
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@@ -490,6 +490,17 @@ STATIC void emit_inline_thumb_op(emit_inline_asm_t *emit, qstr op, mp_uint_t n_a
src_b = get_arg_i(emit, op_str, pn_args[2], 0x7);
}
asm_thumb_format_2(emit->as, op_code, rlo_dest, rlo_src, src_b);
} else if (strcmp(op_str, "sdiv") == 0) {
op_code = 0xfb90; // sdiv high part
mp_uint_t rd, rn, rm;
op_sdiv_udiv:
rd = get_arg_reg(emit, op_str, pn_args[0], 15);
rn = get_arg_reg(emit, op_str, pn_args[1], 15);
rm = get_arg_reg(emit, op_str, pn_args[2], 15);
asm_thumb_op32(emit->as, op_code | rn, 0xf0f0 | (rd << 8) | rm);
} else if (strcmp(op_str, "udiv") == 0) {
op_code = 0xfbb0; // udiv high part
goto op_sdiv_udiv;
} else if (strcmp(op_str, "sub") == 0) {
op_code = ASM_THUMB_FORMAT_2_SUB;
goto op_format_2;