instructions
This commit is contained in:
Rose Apollo
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5
.vscode/settings.json
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5
.vscode/settings.json
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{
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"files.associations": {
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"ram.h": "c"
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}
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}
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54
README.md
54
README.md
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# r16
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| number | instruction | argument 1 | argument 2 | explanation |
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|--------|-------------|------------|------------|---------------------------------------------------|
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| 0x00 | HLT | | | halts the CPU |
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| 0x01 | ADD | value 1 | value 2 | ACU = value 1 + value 2 |
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| 0x02 | SUB | value 1 | value 2 | ACU = value 1 - value 2 |
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| 0x03 | MUL | value 1 | value 2 | ACU = value 1 * value 2 |
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| 0x04 | DIV | value 1 | value 2 | ACU = value 1 / value 2 |
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| 0x05 | LBS | value | amount | ACU = value << amount |
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| 0x06 | RBS | value | amount | ACU = value << amount |
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| 0x07 | BAN | value 1 | value 2 | ACU = value 1 & value 2 |
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| 0x08 | BOR | value 1 | value 2 | ACU = value 1 \ |
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| 0x09 | BXO | value 1 | value 2 | ACU = value 1 ^ value 2 |
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| 0x0A | BNO | value | | ACU = ~ value |
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| 0x0B | PUS | value | | pushes value onto the stack |
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| 0x0C | POP | | | pops a value from the stack and stores it in ACU |
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| 0x0D | JMP | address | | jumps to address |
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| 0x0E | JEQ | address | value | jumps to address, if value is equal to ACU |
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| 0x0F | JNZ | address | value | jumps to address, if value is not zero |
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| 0x10 | CAL | address | | pushes PC + 1 to the stack, then jumps to address |
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| 0x11 | RET | | | pops value from stack and jumps to it |
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| 0x12 | REG | int type | address | registers int type to address |
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| 0x13 | INT | int type | | interrupts as int type |
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| 0x14 | INP | | | inputs a character into ACU |
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| 0x15 | OUT | value | | outputs value |
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| 0x16 | DIN | location | | reads value from disk at location to ACU |
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| 0x17 | DOT | location | value | writes value to disk at location |
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| 0x18 | MOV | value 1 | value 2 | move value 2 to value 1 |
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| number | instruction | argument 1 | argument 2 | fullname | explanation |
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|-------:|:-----------:|------------|------------|----------------------|---------------------------------------------------|
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| 0x00 | HLT | | | Halt | halts the CPU |
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| 0x01 | ADD | value 1 | value 2 | Add | ACU = value 1 + value 2 |
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| 0x02 | SUB | value 1 | value 2 | Subtract | ACU = value 1 - value 2 |
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| 0x03 | MUL | value 1 | value 2 | Multiply | ACU = value 1 * value 2 |
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| 0x04 | DIV | value 1 | value 2 | Divide | ACU = value 1 / value 2 |
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| 0x05 | LBS | value | amount | Left Bit-Shift | ACU = value << amount |
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| 0x06 | RBS | value | amount | Right Bit-Shift | ACU = value << amount |
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| 0x07 | BAN | value 1 | value 2 | Bitwise And | ACU = value 1 & value 2 |
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| 0x08 | BOR | value 1 | value 2 | Bitwise Or | ACU = value 1 \ |
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| 0x09 | BXO | value 1 | value 2 | Bitwise Exclusive Or | ACU = value 1 ^ value 2 |
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| 0x0A | BNO | value | | Bitwise Not | ACU = ~ value |
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| 0x0B | PUS | value | | Push | pushes value onto the stack |
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| 0x0C | POP | | | Pop | pops a value from the stack and stores it in ACU |
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| 0x0D | JMP | address | | Jump | jumps to address |
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| 0x0E | JEQ | address | value | Jump If Equal | jumps to address, if value is equal to ACU |
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| 0x0F | JNZ | address | value | Jump If Not Zero | jumps to address, if value is not zero |
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| 0x10 | CAL | address | | Call | pushes PC + 1 to the stack, then jumps to address |
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| 0x11 | RET | | | Return | pops value from stack and jumps to it |
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| 0x12 | REG | int type | address | Register Interrupt | registers int type to address |
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| 0x13 | INT | int type | | Interrupt | interrupts as int type |
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| 0x14 | INP | | | Input | inputs a character into ACU |
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| 0x15 | OUT | value | | Output | outputs value |
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| 0x16 | DIN | location | | Disk In | reads value from disk at location to ACU |
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| 0x17 | DOT | location | value | Disk Out | writes value to disk at location |
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| 0x18 | MOV | value 1 | value 2 | Move | move value 2 to value 1 |
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| Number | Register | Usage |
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|-------:|---------:|-----------------|
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2
build.sh
2
build.sh
@ -1,2 +1,2 @@
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mkdir ./bin
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clang -o ./bin/r16e ./emu/main.c ./emu/cpu/ram.c ./emu/cpu/register.c ./emu/cpu/stack.c ./lib/carg-parse/carg-parse.c
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clang -o ./bin/r16e ./emu/main.c ./emu/cpu/instruction.c ./emu/cpu/ram.c ./emu/cpu/register.c ./emu/cpu/stack.c ./lib/carg-parse/carg-parse.c
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14
emu/cpu.c
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14
emu/cpu.c
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#include "cpu.h"
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#include <stdbool.h>
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void Run(r16_int entry)
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{
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r16_int instruction, arg1, arg2;
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SetRegister(PC, entry);
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while (true)
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{
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}
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}
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9
emu/cpu.h
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9
emu/cpu.h
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#ifndef EMU_CPU_H
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#define EMU_CPU_H
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#include "cpu_const.h"
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#include "cpu/ram.h"
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#include "cpu/register.h"
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#include "cpu/instruction.h"
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#endif
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#include "./instruction.h"
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#include <stdio.h>
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#include <stdlib.h>
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r16_int GetArgVal(ArgumentInfo argInfo, r16_int arg)
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{
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switch (argInfo)
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{
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case value:
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return arg;
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case valueInRegister:
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return GetRegister((CpuRegisters)arg.u);
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case valueInRam:
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return GetValue(arg);
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case pointerInRegister:
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return GetValue(GetRegister((CpuRegisters)arg.u));
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}
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}
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void GetAllArgVal(ArgumentInfo arg1Info, ArgumentInfo arg2Info,
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r16_int arg1, r16_int arg2,
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r16_int *arg1Out, r16_int *arg2Out)
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{
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*arg1Out = GetArgVal(arg1Info, arg1);
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*arg2Out = GetArgVal(arg2Info, arg2);
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}
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void ExecuteInstruction(CpuInstructions instruction, ArgumentInfo arg1Info,
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ArgumentInfo arg2Info, r16_int arg1, r16_int arg2)
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{
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r16_int actArg1, actArg2;
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switch (instruction)
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{
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case HLT:
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printf("program halted\n");
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printf("\nprogram HALTED!\n");
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exit(0);
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case ADD:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.s + actArg2.s });
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break;
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case SUB:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.s - actArg2.s });
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break;
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case MUL:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.s * actArg2.s });
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break;
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case DIV:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.s / actArg2.s });
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break;
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case LBS:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.s << actArg2.s });
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break;
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case RBS:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.s >> actArg2.s });
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break;
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case BAN:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.u & actArg2.u });
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break;
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case BOR:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.u | actArg2.u });
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break;
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case BXO:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetRegister(ACU, (r16_int){ actArg1.u ^ actArg2.u });
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break;
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case BNO:
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SetRegister(ACU, (r16_int){ ~ GetArgVal(arg1Info, arg1).u });
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break;
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case PUS:
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StackPush(GetArgVal(arg1Info, arg1));
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break;
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case POP:
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SetRegister(ACU, StackPop());
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break;
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case JMP:
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SetRegister(PC, GetArgVal(arg1Info, arg1));
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break;
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case JEQ:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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if (actArg2.u == GetRegister(ACU).u)
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SetRegister(PC, actArg1);
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break;
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case JNZ:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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if (actArg2.s != 0)
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SetRegister(PC, actArg1);
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break;
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case CAL:
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StackPush(GetRegister(PC));
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SetRegister(PC, GetArgVal(arg1Info, arg1));
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break;
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case RET:
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case REG:
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case INT:
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SetRegister(PC, StackPop());
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break;
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case REG: // TODO
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case INT: // TODO
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fprintf(stderr, "INTS NOT IMPLEMENTED YET\n");
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exit(-1);
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case INP:
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SetRegister(ACU, (r16_int){ getchar() });
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break;
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case OUT:
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case DIN:
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case DOT:
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putchar((char)(GetArgVal(arg1Info, arg1).u));
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break;
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case DIN: // TODO
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case DOT: // TODO
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fprintf(stderr, "DISK NOT IMPLEMENTED YET\n");
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exit(-1);
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case MOV:
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GetAllArgVal(arg1Info, arg2Info, arg1, arg2, &actArg1, &actArg2);
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SetValue(actArg1, actArg2);
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break;
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}
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}
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#include "./register.h"
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#include "./stack.h"
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void ExecuteInstruction(CpuInstructions instruction, ArgumentInfo arg1Info,
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ArgumentInfo arg2Info, r16_int arg1, r16_int arg2);
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#endif
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