public void HandleIfStatement(ASTNode node)
{
// handle condition with the bne command
// add new entry to jump table
// write code for associated block
string[] splitConditionAddress = ConditionResultAddress.Split(" ");
int conditionResult = (int)EvaluateBooleanSubtree(node.Descendants[0]);
Image.WriteByte("A9");
Image.WriteByte(conditionResult.ToString("X2"));
Image.WriteByte("8D");
Image.WriteByte(splitConditionAddress[0]);
Image.WriteByte(splitConditionAddress[1]);
Image.WriteByte("A2");
Image.WriteByte("01");
Image.WriteByte("EC");
Image.WriteByte(splitConditionAddress[0]);
Image.WriteByte(splitConditionAddress[1]);
JumpTableEntry jumpEntry = JumpTable.NewJumpEntry();
Image.WriteByte("D0");
Image.WriteByte(jumpEntry.Name);
HandleSubtree(node.Descendants[1]);
jumpEntry.JumpLength = JumpLength;
JumpLength = 0;
}
public void BackPatchJump(JumpTableEntry jump)
{
for (int i = 0; i < Bytes.GetLength(0); i++)
{
for (int j = 0; j < Bytes.GetLength(1); j++)
{
if (Bytes[i, j] == jump.Name)
{
Bytes[i, j] = jump.JumpLength.ToString("X2");
}
}
}
}
