luaur-code-gen 0.1.0

use crate::enums::condition_a_64::ConditionA64;
use crate::records::assembly_builder_a_64::AssemblyBuilderA64;
use crate::records::register_a_64::RegisterA64;

impl AssemblyBuilderA64 {
    pub fn ccmp(&mut self, src1: RegisterA64, src2: RegisterA64, cond: ConditionA64, nzcv: u8) {
        if self.log_text {
            self.log_append(format_args!("{:<12}", "ccmp"));
            self.log_register_a_64(src1);
            self.text.push(',');
            self.log_register_a_64(src2);
            self.log_append(format_args!(",#{},{}", nzcv & 0x0F, cond as u32));
        }

        assert!(
            src1.kind() == crate::enums::kind_a_64::KindA64::w
                || src1.kind() == crate::enums::kind_a_64::KindA64::x
        );
        assert!(src2.kind() == src1.kind());

        let sf: u32 = if src1.kind() == crate::enums::kind_a_64::KindA64::x {
            0x8000_0000
        } else {
            0
        };

        let code_for_condition: u32 = match cond {
            ConditionA64::Equal => 0,
            ConditionA64::NotEqual => 1,
            ConditionA64::CarrySet => 2,
            ConditionA64::CarryClear => 3,
            ConditionA64::Minus => 4,
            ConditionA64::Plus => 5,
            ConditionA64::Overflow => 6,
            ConditionA64::NoOverflow => 7,
            ConditionA64::UnsignedGreater => 8,
            ConditionA64::UnsignedLessEqual => 9,
            ConditionA64::GreaterEqual => 10,
            ConditionA64::Less => 11,
            ConditionA64::Greater => 12,
            ConditionA64::LessEqual => 13,
            ConditionA64::Always => 14,
            _ => 15,
        };

        let word = (nzcv & 0x0F) as u32
            | ((src1.index() as u32) << 5)
            | ((code_for_condition as u32) << 12)
            | ((src2.index() as u32) << 16)
            | (0b1111010010u32 << 21)
            | sf;

        self.place(word);
        self.commit();
    }
}