/// <summary>
/// Outputs formatted data in an unformatted way, because the code generator couldn't
/// figure out how to do something better.
/// </summary>
private void OutputNoJoy(int offset, int length, string labelStr, string commentStr)
{
byte[] data = Project.FileData;
Debug.Assert(length > 0);
Debug.Assert(offset >= 0 && offset < data.Length);
bool singleValue = true;
byte val = data[offset];
for (int i = 1; i < length; i++)
{
if (data[offset + i] != val)
{
singleValue = false;
break;
}
}
if (singleValue && length > 1)
{
string opcodeStr = SourceFormatter.FormatPseudoOp(sDataOpNames.Fill);
string operandStr = length + "," + SourceFormatter.FormatHexValue(val, 2);
OutputLine(labelStr, opcodeStr, operandStr, commentStr);
}
else
{
OutputDenseHex(offset, length, labelStr, commentStr);
}
}
// IGenerator
public void OutputOrgDirective(int offset, int address)
{
// 64tass separates the "compile offset", which determines where the output fits
// into the generated binary, and "program counter", which determines the code
// the assembler generates. Since we need to explicitly specify every byte in
// the output file, the compile offset isn't very useful. We want to set it once
// before the first line of code, then leave it alone.
//
// Any subsequent ORG changes are made to the program counter, and take the form
// of a pair of ops (.logical <addr> to open, .here to end). Omitting the .here
// causes an error.
if (offset == 0)
{
// Set the "compile offset" to the initial address.
OutputLine("*", "=", SourceFormatter.FormatHexValue(Project.AddrMap.Get(0), 4),
string.Empty);
}
else
{
if (mNeedHereOp)
{
OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(HERE_PSEUDO_OP),
string.Empty, string.Empty);
}
OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(sDataOpNames.OrgDirective),
SourceFormatter.FormatHexValue(address, 4), string.Empty);
mNeedHereOp = true;
}
}
// IGenerator
public void OutputOrgDirective(int offset, int address)
{
// If there's only one address range, just set the "real" PC. If there's more
// than one we can run out of space if the source file has a chunk in high memory
// followed by a chunk in low memory, because the "real" PC determines when the
// 64KB bank is overrun.
if (offset == 0)
{
// first one
if (Project.AddrMap.Count == 1)
{
OutputLine("*", "=", SourceFormatter.FormatHexValue(address, 4), string.Empty);
return;
}
else
{
// set the real PC to address zero to ensure we get a full 64KB
OutputLine("*", "=", SourceFormatter.FormatHexValue(0, 4), string.Empty);
}
}
if (mInPseudoPcBlock)
{
// close previous block
OutputLine(string.Empty, CLOSE_PSEUDOPC, string.Empty, string.Empty);
}
OutputLine(string.Empty, sDataOpNames.OrgDirective,
SourceFormatter.FormatHexValue(address, 4) + " {", string.Empty);
mInPseudoPcBlock = true;
}
// IGenerator
public void OutputOrgDirective(int offset, int address)
{
// Linear search for offset. List should be small, so this should be quick.
int index = 0;
foreach (AddressMap.AddressMapEntry ame in Project.AddrMap)
{
if (ame.Offset == offset)
{
break;
}
index++;
}
mLineBuilder.Clear();
TextUtil.AppendPaddedString(mLineBuilder, ";", 0);
// using +1 to make it look like the comment ';' shifted it over
TextUtil.AppendPaddedString(mLineBuilder, SourceFormatter.FormatPseudoOp(".segment"),
mColumnWidths[0] + 1);
TextUtil.AppendPaddedString(mLineBuilder, string.Format("\"SEG{0:D3}\"", index),
mColumnWidths[0] + mColumnWidths[1] + 1);
OutputLine(mLineBuilder.ToString());
OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(sDataOpNames.OrgDirective),
SourceFormatter.FormatHexValue(address, 4), string.Empty);
}
// IGenerator
public void FlushArDirectives()
{
// Output pending directives. There will always be something to do here unless
// we were in "relative" mode.
Debug.Assert(mNextAddress >= 0 || mIsInRelative);
if (mNextAddress >= 0)
{
OutputLine(string.Empty,
SourceFormatter.FormatPseudoOp(sDataOpNames.ArStartDirective),
SourceFormatter.FormatHexValue(mNextAddress, 4),
string.Empty);
}
mNextAddress = -1;
mIsInRelative = false;
}
// IGenerator
public void GenerateShortSequence(int offset, int length, out string opcode,
out string operand)
{
Debug.Assert(length >= 1 && length <= 4);
// Use a comma-separated list of individual hex bytes.
opcode = sDataOpNames.DefineData1;
StringBuilder sb = new StringBuilder(length * 4);
for (int i = 0; i < length; i++)
{
if (i != 0)
{
sb.Append(',');
}
sb.Append(SourceFormatter.FormatHexValue(Project.FileData[offset + i], 2));
}
operand = sb.ToString();
}
// IGenerator
public void OutputOrgDirective(int offset, int address)
{
// For the first one, set the "real" PC. For all subsequent directives, set the
// "pseudo" PC.
if (offset == 0)
{
OutputLine("*", "=", SourceFormatter.FormatHexValue(address, 4), string.Empty);
}
else
{
if (mInPseudoPcBlock)
{
// close previous block
OutputLine(string.Empty, CLOSE_PSEUDOPC, string.Empty, string.Empty);
}
OutputLine(string.Empty, sDataOpNames.OrgDirective,
SourceFormatter.FormatHexValue(address, 4) + " {", string.Empty);
mInPseudoPcBlock = true;
}
}
// IGenerator
public void OutputArDirective(CommonUtil.AddressMap.AddressChange change)
{
// This is similar in operation to the AsmTass64 implementation. See comments there.
Debug.Assert(mPcDepth >= 0);
int nextAddress = change.Address;
if (nextAddress == Address.NON_ADDR)
{
// Start non-addressable regions at zero to ensure they don't overflow bank.
nextAddress = 0;
}
if (change.IsStart)
{
if (change.Region.HasValidPreLabel)
{
string labelStr = mLocalizer.ConvLabel(change.Region.PreLabel);
OutputLine(labelStr, string.Empty, string.Empty, string.Empty);
}
if (mPcDepth == 0 && mFirstIsOpen)
{
mPcDepth++;
// Set the "real" PC for the first address change. If we're in "loadable"
// mode, just set "*=". If we're in "streaming" mode, we set "*=" to zero
// and then use a pseudo-PC.
if (mOutputMode == OutputMode.Loadable)
{
OutputLine("*", "=", SourceFormatter.FormatHexValue(nextAddress, 4),
string.Empty);
return;
}
else
{
// set the real PC to address zero to ensure we get a full 64KB
OutputLine("*", "=", SourceFormatter.FormatHexValue(0, 4), string.Empty);
}
}
AddressMap.AddressRegion region = change.Region;
string addrStr;
if (region.HasValidIsRelative)
{
int diff = nextAddress - region.PreLabelAddress;
string pfxStr;
if (diff >= 0)
{
pfxStr = "*+";
}
else
{
pfxStr = "*-";
diff = -diff;
}
addrStr = pfxStr + SourceFormatter.FormatHexValue(diff, 4);
}
else
{
addrStr = SourceFormatter.FormatHexValue(nextAddress, 4);
}
OutputLine(string.Empty,
SourceFormatter.FormatPseudoOp(sDataOpNames.ArStartDirective),
addrStr + " {",
string.Empty);
mPcDepth++;
}
else
{
mPcDepth--;
if (mPcDepth > 0 || !mFirstIsOpen)
{
// close previous block
OutputLine(string.Empty,
SourceFormatter.FormatPseudoOp(sDataOpNames.ArEndDirective),
string.Empty, string.Empty);
//";" + SourceFormatter.FormatPseudoOp(sDataOpNames.ArStartDirective));
}
else
{
// mark initial "*=" region as closed, but don't output anything
mFirstIsOpen = false;
}
}
}
// IGenerator
public void OutputOrgDirective(int address)
{
OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(sDataOpNames.OrgDirective),
SourceFormatter.FormatHexValue(address, 4), string.Empty);
}
// IGenerator
public void OutputArDirective(CommonUtil.AddressMap.AddressChange change)
{
// 64tass separates the "compile offset", which determines where the output fits
// into the generated binary, and "program counter", which determines the code
// the assembler generates. Since we need to explicitly specify every byte in
// the output file, having a distinct compile offset isn't useful here. We want
// to set it once before the first line of code, then leave it alone.
//
// Any subsequent ORG changes are made to the program counter, and take the form
// of a pair of ops (".logical <addr>" to open, ".here" to end). Omitting the .here
// causes an error.
//
// If this is a "streamable" file, meaning it won't actually load into 64K of RAM
// without wrapping around, then we skip the "* = addr" (same as "* = 0") and just
// start with ".logical" segments.
//
// The assembler's approach is best represented by having an address region that
// spans the entire file, with one or more "logical" regions inside. In practice
// (especially for multi-bank 65816 code) that may not be the case, but the
// assembler is still expecting us to start with a "* =" and then fit everything
// inside that. So we treat the first region specially, whether or not it wraps
// the rest of the file.
Debug.Assert(mPcDepth >= 0);
int nextAddress = change.Address;
if (nextAddress == Address.NON_ADDR)
{
// Start non-addressable regions at zero to ensure they don't overflow bank.
nextAddress = 0;
}
if (change.IsStart)
{
if (change.Region.HasValidPreLabel)
{
string labelStr = mLocalizer.ConvLabel(change.Region.PreLabel);
OutputLine(labelStr, string.Empty, string.Empty, string.Empty);
}
if (mPcDepth == 0 && mFirstIsOpen)
{
mPcDepth++;
// Set the "real" PC for the first address change. If we're in "loadable"
// mode, just set "*=". If we're in "streaming" mode, we set "*=" to zero
// and then use a pseudo-PC.
if (mOutputMode == OutputMode.Loadable)
{
OutputLine("*", "=",
SourceFormatter.FormatHexValue(nextAddress, 4), string.Empty);
return;
}
else
{
// Set the real PC to address zero to ensure we get a full 64KB. The
// assembler assumes this as a default, so it can be omitted.
//OutputLine("*", "=", SourceFormatter.FormatHexValue(0, 4), string.Empty);
}
}
AddressMap.AddressRegion region = change.Region;
string addrStr;
if (region.HasValidIsRelative)
{
int diff = nextAddress - region.PreLabelAddress;
string pfxStr;
if (diff >= 0)
{
pfxStr = "*+";
}
else
{
pfxStr = "*-";
diff = -diff;
}
addrStr = pfxStr + SourceFormatter.FormatHexValue(diff, 4);
}
else
{
addrStr = SourceFormatter.FormatHexValue(nextAddress, 4);
}
OutputLine(string.Empty,
SourceFormatter.FormatPseudoOp(sDataOpNames.ArStartDirective),
addrStr,
string.Empty);
mPcDepth++;
}
else
{
mPcDepth--;
if (mPcDepth > 0 || !mFirstIsOpen)
{
// close previous block
OutputLine(string.Empty,
SourceFormatter.FormatPseudoOp(sDataOpNames.ArEndDirective),
string.Empty, string.Empty);
}
else
{
// mark initial "*=" region as closed, but don't output anything
mFirstIsOpen = false;
}
}
}
// IGenerator
public void OutputArDirective(CommonUtil.AddressMap.AddressChange change)
{
int nextAddress = change.Address;
if (nextAddress == Address.NON_ADDR)
{
// Start non-addressable regions at zero to ensure they don't overflow bank.
nextAddress = 0;
}
if (change.IsStart)
{
AddressMap.AddressRegion region = change.Region;
if (region.HasValidPreLabel || region.HasValidIsRelative)
{
// Need to output the previous ORG, if one is pending.
if (mNextAddress >= 0)
{
OutputLine(string.Empty,
SourceFormatter.FormatPseudoOp(sDataOpNames.ArStartDirective),
SourceFormatter.FormatHexValue(mNextAddress, 4),
string.Empty);
}
}
if (region.HasValidPreLabel)
{
string labelStr = mLocalizer.ConvLabel(change.Region.PreLabel);
OutputLine(labelStr, string.Empty, string.Empty, string.Empty);
}
if (region.HasValidIsRelative)
{
// Found a valid IsRelative. Switch to "relative mode" if not there already.
mIsInRelative = true;
}
if (mIsInRelative)
{
// Once we see a region with IsRelative set, we output regions as we
// find them until the next Flush.
string addrStr;
if (region.HasValidIsRelative)
{
int diff = nextAddress - region.PreLabelAddress;
string pfxStr;
if (diff >= 0)
{
pfxStr = "*+";
}
else
{
pfxStr = "*-";
diff = -diff;
}
addrStr = pfxStr + SourceFormatter.FormatHexValue(diff, 4);
}
else
{
addrStr = SourceFormatter.FormatHexValue(nextAddress, 4);
}
OutputLine(string.Empty,
SourceFormatter.FormatPseudoOp(sDataOpNames.ArStartDirective),
addrStr, string.Empty);
mNextAddress = -1;
return;
}
}
mNextAddress = nextAddress;
}
