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Support for the Mitsubishi 740 CPU for da65. Written and contributed by

Browse Source 
Chris Baird, cjb@brushtail.apana.org.au.


git-svn-id: svn://svn.cc65.org/cc65/trunk@5350 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz
2011-12-31 13:09:55 +00:00
parent af12aa8b2d
commit 45f7cc1403
10 changed files with 471 additions and 3 deletions
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80
src/da65/handler.c
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@@ -552,6 +552,86 @@ void OH_AbsoluteXIndirect (const OpcDesc* D attribute ((unused)))
void OH_DirectImmediate (const OpcDesc* D)
{
/* Get the operand */
unsigned Addr = GetCodeByte (PC+1);
/* Generate a label in pass 1 */
GenerateLabel (D->Flags, Addr);
/* Output the line */
OneLine (D, "%s, #$%02X", GetAddrArg (D->Flags, Addr), GetCodeByte (PC+2));
}
void OH_ZeroPageBit (const OpcDesc* D)
{
unsigned Bit = GetCodeByte (PC) >> 5;
unsigned Addr = GetCodeByte (PC+1);
/* Generate a label in pass 1 */
GenerateLabel (D->Flags, Addr);
/* Output the line */
OneLine (D, "%01X,%s", Bit, GetAddrArg (D->Flags, Addr));
}
void OH_AccumulatorBit (const OpcDesc* D)
{
unsigned Bit = GetCodeByte (PC) >> 5;
/* Output the line */
OneLine (D, "%01X,a", Bit);
}
void OH_AccumulatorBitBranch (const OpcDesc* D)
{
unsigned Bit = GetCodeByte (PC) >> 5;
signed char BranchOffs = GetCodeByte (PC+1);
/* Calculate the target address for the branch */
unsigned BranchAddr = (((int) PC+3) + BranchOffs) & 0xFFFF;
/* Generate labels in pass 1 */
GenerateLabel (flLabel, BranchAddr);
/* Output the line */
OneLine (D, "%01X,a,%s", Bit, GetAddrArg (flLabel, BranchAddr));
}
void OH_JmpDirectIndirect (const OpcDesc* D)
{
OH_DirectIndirect (D);
if (NewlineAfterJMP) {
LineFeed ();
}
SeparatorLine ();
}
void OH_SpecialPage (const OpcDesc* D)
{
/* Get the operand */
unsigned Addr = 0xFF00 + GetCodeByte (PC+1);
/* Generate a label in pass 1 */
GenerateLabel (D->Flags, Addr);
/* OneLine (D, "$FF%02X", (CodeByte (PC+1)); */
OneLine (D, "\%s", GetAddrArg (D->Flags, Addr));
}
void OH_Rts (const OpcDesc* D)
{
OH_Implicit (D);