public void RvConsoleAction(InstructionPayload payload)
{
/*
* The rv program supports the following non-RISC-V instructions:
*
* funct7
*
* halt halt 0
* nl output newline to display 1
* dout reg output reg in decimal to display 2
* udout reg output reg in unsigned decimal to display 3
* hout reg output reg in hex to display 4
* aout reg output ASCII character in reg to display 5
* sout reg display string reg points to 6
* din reg input dec number from keyboard into reg 7
* hin reg input hex number from keyboard into reg 8
* ain reg input character from keyboard into reg 9
* sin reg like sout but for input a
* m display memory b
* x display registers c
* s display stack d
* bp software breakpoint e
* ddout reg doubleword (i.e., 64 bits) decimal out f
* dudout reg doubleword (i.e., 64 bits) unsigned dec out 10
* dhout reg doubleword (i.e., 64 bits) hex out 11
*/
var rd = payload.Rd;
var rs1 = payload.Rs1;
var rs2 = payload.Rs2;
var f3 = payload.Funct3;
var f7 = payload.Funct7;
var rs1ValueSigned = register.ReadSignedInt(rs1);
var rs1ValueUnsigned = register.ReadSignedInt(rs1);
int result = 0;
Logger.Info("Opcode RV : rd = {rd}, rs1 = {rs1}, rs2 = {rs2}, f3 = {f3}, f7 = {f7}", rd, rs1, rs2, f3, f7);
if (f7 == 0x01)
{
// nl output newline to display
Console.WriteLine();
}
if (f7 == 0x02)
{
// dout reg output reg in decimal to display
Console.Write(rs1ValueSigned);
}
if (f7 == 0x03)
{
// udout reg output reg in unsigned decimal to display
Console.Write(rs1ValueUnsigned);
}
if (f7 == 0x04)
{
// hout reg output reg in hex to display
Console.WriteLine("{0:X}", rs1ValueUnsigned);
}
if (f7 == 0x05)
{
// aout reg output ASCII character in reg to display
}
if (f7 == 0x06)
{
// sout reg display string reg points to
}
if (f7 == 0x07)
{
// din reg input dec number from keyboard into reg
Console.WriteLine("Enter dec number : ");
var decValue = Console.ReadLine();
result = Int32.Parse(decValue);
register.WriteSignedInt(rd, result);
}
if (f7 == 0x08)
{
// hin reg input hex number from keyboard into reg
Console.WriteLine("Enter hex number : ");
var hexValue = Console.ReadLine();
result = Int32.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);
register.WriteSignedInt(rd, result);
}
if (f7 == 0x09)
{
// ain reg input character from keyboard into reg
}
if (f7 == 0x0A)
{
// sin reg like sout but for input
}
if (f7 == 0x0B)
{
// m display memory
}
if (f7 == 0x0C)
{
// x display registers
var register = GetRegisterStates();
Console.WriteLine(register);
}
if (f7 == 0x0D)
{
// s display stack
}
if (f7 == 0x0E)
{
// bp software breakpoint
}
if (f7 == 0x0F)
{
// ddout reg doubleword (i.e., 64 bits) decimal out
}
if (f7 == 0x10)
{
// dudout reg doubleword (i.e., 64 bits) unsigned dec out
}
if (f7 == 0x11)
{
// dhout reg doubleword (i.e., 64 bits) hex out
}
}