1 files changed, 0 insertions, 130 deletions
diff --git a/src/arm32/instruction/encode_arm.rs b/src/arm32/instruction/encode_arm.rs
deleted file mode 100644
index a24ec28..0000000
--- a/src/arm32/instruction/encode_arm.rs
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright 2024 Gabriel Bjørnager Jensen.
-//
-// This file is part of Pollex.
-//
-// Pollex is free software: you can redistribute it
-// and/or modify it under the terms of the GNU Af-
-// fero General Public License as published by the
-// Free Software Foundation, either version 3 of
-// the License, or (at your option) any later ver-
-// sion.
-//
-// Pollex is distributed in the hope that it will
-// be useful, but WITHOUT ANY WARRANTY; without
-// even the implied warranty of MERCHANTABILITY or
-// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Af-
-// fero General Public License along with Pollex.
-// If not, see <https://www.gnu.org/licenses/>.
-
-use crate::Result;
-use crate::arm32::{ArmOpcode, Instruction, Shifter};
-
-impl Instruction {
- pub fn encode_arm(&self) -> Result<ArmOpcode> {
- use Instruction::*;
-
- let mut opcode = 0b00000000_00000000_00000000_00000000;
-
- match *self {
- Branch { predicate, .. } => {
- opcode |= 0b00001011_00000000_00000000_00000000;
- opcode |= (predicate as u32) << 0x1C;
- },
-
- BranchLink { predicate, .. } => {
- opcode |= 0b00001010_00000000_00000000_00000000;
- opcode |= (predicate as u32) << 0x1C;
- //opcode |= immediate.to_bits::<0x18>() >> 0x8
- },
-
- Breakpoint { immediate } => {
- opcode |= 0b11100001_00100000_00000000_01110000;
- opcode |= immediate.get() & 0b00000000_00000000_00000000_00001111;
- opcode |= (immediate.get() & 0b00000000_00000000_11111111_11110000) << 0x4;
- },
-
- Move { predicate, destination, source, s } => {
- opcode |= 0b00000001_10100000_00000000_00000000;
- opcode |= (destination as u32) << 0xC;
- opcode |= u32::from(s.is_on()) << 0x14;
- opcode |= (predicate as u32) << 0x1C;
-
- opcode = add_shifter(opcode, source);
- },
-
- SoftwareInterrupt { predicate, immediate } => {
- opcode |= 0b00001111_00000000_00000000_00000000;
- opcode |= immediate.get() & 0b00000000_11111111_11111111_11111111;
- opcode |= (predicate as u32) << 0x1C;
- },
-
- _ => todo!(),
- }
-
- Ok(ArmOpcode::from_u32(opcode))
- }
-}
-
-fn add_shifter(mut opcode: u32, shifter: Shifter) -> u32 {
- match shifter {
- | Shifter::ArithmeticShiftRightImmediate { source, shift }
- | Shifter::LogicalShiftLeftImmediate { source, shift }
- | Shifter::LogicalShiftRightImmediate { source, shift }
- | Shifter::RotateRightImmediate { source, shift }
- => {
- let code = match shifter {
- Shifter::LogicalShiftLeftImmediate { .. } => 0b00,
- Shifter::LogicalShiftRightImmediate { .. } => 0b01,
- Shifter::ArithmeticShiftRightImmediate { .. } => 0b10,
- Shifter::RotateRightImmediate { .. } => 0b11,
-
- _ => unreachable!(),
- };
-
- opcode |= source as u32;
- opcode |= code << 0x5;
- opcode |= shift.get() << 0x7;
- },
-
- Shifter::RotateRightExtend { .. } => {
- todo!()
- },
-
- | Shifter::ArithmeticShiftRightRegister { source, .. }
- | Shifter::LogicalShiftLeftRegister { source, .. }
- | Shifter::LogicalShiftRightRegister { source, .. }
- | Shifter::RotateRightRegister { source, .. }
- => {
- let _code = match shifter {
- Shifter::LogicalShiftLeftRegister { .. } => 0b00,
- Shifter::LogicalShiftRightRegister { .. } => 0b01,
- Shifter::ArithmeticShiftRightRegister { .. } => 0b10,
- Shifter::RotateRightRegister { .. } => 0b11,
-
- _ => unreachable!(),
- };
-
- opcode |= 0b00000000_00000000_00000000_00010000;
- opcode |= source as u32;
- },
-
- Shifter::Immediate { immediate } => {
- let (immediate, rotate) = if immediate <= 0xFF {
- let immediate = immediate.get();
-
- (immediate, 0x00)
- } else {
- todo!()
- };
-
- opcode |= 0b00000010_00000000_00000000_00000000;
- opcode |= immediate;
- opcode |= rotate << 0x8;
- },
- }
-
- opcode
-}