// Chops off first four and last two bits of 32-bit immediate, as specified by MIPS J-type format
private uint EncodeJumpImmediate(string input, int reqLength, uint pc)
{
/*
* // If a number or label, convert to hex
* string hex = "";
* if (!string.IsNullOrEmpty(input))
* {
* if (!input.StartsWith("0x"))
* {
* if (ASMStringHelper.StringIsNumeric(input))
* hex = "0x" + ASMValueHelper.UnsignedToHex_WithLength(Convert.ToUInt32(input),8);
* else
* hex = "0x" + ValueHelper.LabelHelper.LabelToHex(input,8);
* }
* else
* {
* hex = input.Substring(0,input.Length);
* }
* }
*/
//uint uValue = ValueHelper.FindUnsignedValue(input);
//string hexNum = hex.Substring(2);
//hexNum = ASMValueHelper.AddLeadingZeroes(hexNum, reqLength);
//hex = "0x" + hexNum;
//return EncodeJumpImmediate(hex);
//return ((ValueHelper.FindUnsignedValue(input) >> 2) & ASMValueHelper.JumpImmediateMask) | (pc & 0xF0000000);
//return ((ValueHelper.FindUnsignedValue(input) & ASMValueHelper.JumpImmediateMask) >> 2) | (pc & 0xF0000000);
return((ValueHelper.FindUnsignedValue(input) & ASMValueHelper.JumpImmediateMask) >> 2);
}
private uint EncodeModifiedImmediate(string val, string addend, int length, uint mask)
{
return(EncodeImmediate(((int)ValueHelper.FindUnsignedValue(val) + (int)ValueHelper.FindUnsignedValue(addend) - 1), length, mask));
}
private uint EncodeDecrementedImmediate(string val, int length, uint mask)
{
return(EncodeImmediate(((int)ValueHelper.FindUnsignedValue(val) - 1), length, mask));
}
private uint EncodeBranchImmediate(string val, uint pc, uint mask)
{
return(EncodeBranchImmediate(ValueHelper.FindUnsignedValue(val), pc, mask));
}
private uint EncodeModifiedImmediate(string val, string addend, int length, uint mask, bool skipLabelAssertion = false)
{
return(EncodeImmediate(((int)ValueHelper.FindUnsignedValue(val, skipLabelAssertion) + (int)ValueHelper.FindUnsignedValue(addend, skipLabelAssertion) - 1), length, mask));
}
private uint EncodeDecrementedImmediate(string val, int length, uint mask, bool skipLabelAssertion = false)
{
return(EncodeImmediate(((int)ValueHelper.FindUnsignedValue(val, skipLabelAssertion) - 1), length, mask));
}
private uint EncodeBranchImmediate(string val, uint pc, uint mask, bool skipLabelAssertion = false)
{
return(EncodeBranchImmediate(ValueHelper.FindUnsignedValue(val, skipLabelAssertion), pc, mask));
}
// Chops off first four and last two bits of 32-bit immediate, as specified by MIPS J-type format
private uint EncodeJumpImmediate(string input, bool skipLabelAssertion = false)
{
return((ValueHelper.FindUnsignedValue(input, skipLabelAssertion) & ASMValueHelper.JumpImmediateMask) >> 2);
}