• Stuart Menefy's avatar
    sh: Remove implicit sign extension from assembler immediates · fea966f7
    Stuart Menefy authored
    The SH instruction set has several instructions which accept an 8 bit
    immediate operand. For logical instructions this operand is zero extended,
    for arithmetic instructions the operand is sign extended. After adding an
    option to the assembler to check this, it was found that several pieces
    of assembly code were assuming this behaviour, and in one case
    getting it wrong.
    
    So this patch explicitly sign extends any immediate operands, which makes
    it obvious what is happening, and fixes the one case which got it wrong.
    Signed-off-by: default avatarStuart Menefy <stuart.menefy@st.com>
    Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
    fea966f7
entry-common.S 7.79 KB