From f0ad502e4651243d6a96194b3393bd460c0f7fc9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Sun, 19 Nov 2017 21:23:04 +0100
Subject: Another huge pile of work for about two months

Well I should commit every change instead of this madness. I am not
documenting changes as all this is just improvements and implementation
progression.
---
 qtmips_machine/instructions/arithmetic.cpp | 174 -----------------------------
 1 file changed, 174 deletions(-)
 delete mode 100644 qtmips_machine/instructions/arithmetic.cpp

(limited to 'qtmips_machine/instructions/arithmetic.cpp')

diff --git a/qtmips_machine/instructions/arithmetic.cpp b/qtmips_machine/instructions/arithmetic.cpp
deleted file mode 100644
index f3cad86..0000000
--- a/qtmips_machine/instructions/arithmetic.cpp
+++ /dev/null
@@ -1,174 +0,0 @@
-#include "instructions/arithmetic.h"
-
-InstructionArithmetic::InstructionArithmetic(enum InstructionArithmeticT type, std::uint8_t rs, std::uint8_t rd, std::uint8_t rt)
-    : InstructionR(rs, rd, rt, 0) {
-    this->type = type;
-}
-
-void InstructionArithmetic::decode(Registers *regs) {
-    Instruction::decode(regs);
-    this->rs_d = regs->read_gp(this->rs);
-    this->rd_d = regs->read_gp(this->rd);
-}
-
-void InstructionArithmetic::execute() {
-    Instruction::execute();
-    switch (this->type) {
-    case IAT_ADD:
-        this->rt_d = (std::uint32_t)((std::int32_t)this->rs_d + (std::int32_t)this->rd_d);
-        break;
-    case IAT_ADDU:
-        this->rt_d = this->rs_d + this->rd_d;
-        break;
-    case IAT_SUB:
-        this->rt_d = (std::uint32_t)((std::int32_t)this->rs_d - (std::int32_t)this->rd_d);
-        break;
-    case IAT_SUBU:
-        this->rt_d = this->rs_d - this->rd_d;
-        break;
-    case IAT_AND:
-        this->rt_d = this->rs_d & this->rd_d;
-        break;
-    case IAT_OR:
-        this->rt_d = this->rs_d | this->rd_d;
-        break;
-    case IAT_XOR:
-        this->rt_d = this->rs_d ^ this->rd_d;
-        break;
-    case IAT_NOR:
-        // TODO
-        break;
-    case IAT_SLT:
-        // TODO
-        break;
-    case IAT_SLTU:
-        // TODO
-        break;
-    }
-}
-
-void InstructionArithmetic::memory(Memory *mem) {
-    Instruction::memory(mem);
-    // pass
-}
-
-void InstructionArithmetic::write_back(Registers *regs) {
-    Instruction::write_back(regs);
-    regs->write_gp(this->rt, this->rt_d);
-}
-
-QVector<QString> InstructionArithmetic::to_strs() {
-    QVector<QString> str = this->InstructionR::to_strs();
-    str.erase(str.begin() + 4); // Drop sa field
-    switch (this->type) {
-    case IAT_ADD:
-        str[0] = "add";
-        break;
-    case IAT_ADDU:
-        str[0] = "addu";
-        break;
-    case IAT_SUB:
-        str[0] = "sub";
-        break;
-    case IAT_SUBU:
-        str[0] = "subu";
-        break;
-    case IAT_AND:
-        str[0] = "and";
-        break;
-    case IAT_OR:
-        str[0] = "or";
-        break;
-    case IAT_XOR:
-        str[0] = "xor";
-        break;
-    case IAT_NOR:
-        str[0] = "nor";
-        break;
-    case IAT_SLT:
-        str[0] = "slt";
-        break;
-    case IAT_SLTU:
-        str[0] = "sltu";
-        break;
-    default:
-        // TODO different exception
-        throw std::exception();
-    }
-    return str;
-}
-
-InstructionArithmeticImmediate::InstructionArithmeticImmediate(enum InstructionArithmeticImmediateT type, std::uint8_t rs, std::uint8_t rt, std::uint16_t value)
-    : InstructionI(rs, rt, value) {
-    this->type = type;
-}
-
-void InstructionArithmeticImmediate::decode(Registers *regs) {
-    Instruction::decode(regs);
-    this->rs_d = regs->read_gp(this->rs);
-}
-
-void InstructionArithmeticImmediate::execute() {
-    Instruction::execute();
-    switch (this->type) {
-    case IAT_ADDI:
-        this->rt_d = (std::uint32_t)((std::int32_t)this->rs_d + (std::int32_t)this->immediate);
-        break;
-    case IAT_ADDIU:
-        this->rt_d = this->rs_d + this->immediate;
-        break;
-    case IAT_ANDI:
-        this->rt_d = (std::uint32_t)((std::int32_t)this->rs_d - (std::int32_t)this->immediate);
-        break;
-    case IAT_ORI:
-        this->rt_d = this->rs_d - this->immediate;
-        break;
-    case IAT_XORI:
-        this->rt_d = this->rs_d & this->immediate;
-        break;
-    }
-}
-
-void InstructionArithmeticImmediate::memory(Memory *mem) {
-    Instruction::memory(mem);
-    // pass
-}
-
-void InstructionArithmeticImmediate::write_back(Registers *regs) {
-    Instruction::write_back(regs);
-    regs->write_gp(this->rt, this->rt_d);
-}
-
-QVector<QString> InstructionArithmeticImmediate::to_strs() {
-    QVector<QString> str = this->InstructionI::to_strs();
-    switch (this->type) {
-    case IAT_ADDI:
-        str[0] = "addi";
-        break;
-    case IAT_ADDIU:
-        str[0] = "addiu";
-        break;
-    case IAT_ANDI:
-        str[0] = "andi";
-        break;
-    case IAT_ORI:
-        str[0] = "ori";
-        break;
-    case IAT_XORI:
-        str[0] = "xori";
-        break;
-    case IAT_SLTI:
-        str[0] = "slti";
-        break;
-    case IAT_SLTIU:
-        str[0] = "sltiu";
-        break;
-    case IAT_LUI:
-        str[0] = "lui";
-        break;
-    default:
-        // TODO different exception
-        throw std::exception();
-    }
-    return str;
-}
-- 
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