EOY minor update.
[rmac] / procln.c
index addff0462d8247e6cdc02632f88939e75f531b3e..9c207bfdefe8481ca71195ad1ad7c3aaaf7c3471 100644 (file)
--- a/procln.c
+++ b/procln.c
@@ -1,7 +1,7 @@
 //
 // RMAC - Reboot's Macro Assembler for all Atari computers
 // PROCLN.C - Line Processing
-// Copyright (C) 199x Landon Dyer, 2011-2018 Reboot and Friends
+// Copyright (C) 199x Landon Dyer, 2011-2020 Reboot and Friends
 // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
 // Source utilised with the kind permission of Landon Dyer
 //
 #include "6502.h"
 #include "amode.h"
 #include "direct.h"
+#include "dsp56k_amode.h"
+#include "dsp56k_mach.h"
 #include "error.h"
 #include "expr.h"
 #include "listing.h"
 #include "mach.h"
 #include "macro.h"
+#include "op.h"
 #include "riscasm.h"
 #include "sect.h"
 #include "symbol.h"
 #define DECL_MP                                        // Include 6502 keyword state machine tables
 #include "6502kw.h"
 
+#define DEF_MO                                 // Include OP keyword definitions
+#define DECL_MO                                        // Include OP keyword state machine tables
+#include "opkw.h"
+
+#define DEF_DSP                                        // Include DSP56K keywords definitions
+#define DECL_DSP                               // Include DSP56K keyword state machine tables
+#include "dsp56kkw.h"
+
+
 IFENT * ifent;                                 // Current ifent
 static IFENT ifent0;                   // Root ifent
 IFENT * f_ifent;                               // Freelist of ifents
@@ -41,6 +53,7 @@ int disabled;                                 // Assembly conditionally disabled
 int just_bss;                                  // 1, ds.b in microprocessor mode
 uint32_t pcloc;                                        // Value of "PC" at beginning of line
 SYM * lab_sym;                                 // Label on line (or NULL)
+char * label_defined;                  // The name of the last label defined in current line (if any)
 
 const char extra_stuff[] = "extra (unexpected) text found after addressing mode";
 const char comma_error[] = "missing comma";
@@ -174,6 +187,7 @@ DEBUG { printf("Assemble: Found TKEOF flag...\n"); }
 
        state = -3;                                                             // No keyword (just EOL)
        label = NULL;                                                   // No label
+       label_defined = NULL;                                   // No label defined yet
        lab_sym = NULL;                                                 // No (exported) label
        equate = NULL;                                                  // No equate
        tk = tok;                                                               // Save first token in line
@@ -221,6 +235,8 @@ as68label:
                        if (HandleLabel(label, labtyp) != 0)
                                goto loop;
 
+                       label_defined = label;
+
                        goto as68label;
                }
        }
@@ -351,6 +367,8 @@ as68label:
                                {
                                        if (HandleLabel(label, labtyp) != 0)
                                                goto loop;
+
+                                       label_defined = label;
                                }
 
                                HandleRept();
@@ -575,7 +593,7 @@ When checking to see if it's already been equated, issue a warning.
                if (list_flag)                                  // Put value in listing
                        listvalue((uint32_t)eval);
 
-               at_eol();                                               // Must be at EOL now
+               ErrorIfNotAtEOL();                              // Must be at EOL now
                goto loop;
        }
 
@@ -585,6 +603,8 @@ When checking to see if it's already been equated, issue a warning.
                // Non-zero == error occurred
                if (HandleLabel(label, labtyp) != 0)
                        goto loop;
+
+               label_defined = label;
        }
 
        // Punt on EOL
@@ -659,6 +679,125 @@ When checking to see if it's already been equated, issue a warning.
                }
        }
 
+       // If we are in OP mode and still in need of a mnemonic then search for one
+       if (robjproc && ((state < 0) || (state >= 1000)))
+       {
+               for(state=0, p=opname; state>=0;)
+               {
+                       j = mobase[state] + (int)tolowertab[*p];
+
+                       // Reject, character doesn't match
+                       if (mocheck[j] != state)
+                       {
+                               state = -1;                                     // No match
+                               break;
+                       }
+
+                       // Must accept or reject at EOS
+                       if (!*++p)
+                       {
+                               state = moaccept[j];            // (-1 on no terminal match)
+                               break;
+                       }
+
+                       state = motab[j];
+               }
+
+               // Call OP code generator if we found a mnemonic
+               if (state >= 3100)
+               {
+                       GenerateOPCode(state);
+                       goto loop;
+               }
+       }
+
+       // If we are in 56K mode and still in need of a mnemonic then search for one
+       if (dsp56001 && ((state < 0) || (state >= 1000)))
+       {
+               for(state=0, p=opname; state>=0;)
+               {
+                       j = dspbase[state] + (int)tolowertab[*p];
+
+                       // Reject, character doesn't match
+                       if (dspcheck[j] != state)
+                       {
+                               state = -1;                                     // No match
+                               break;
+                       }
+
+                       // Must accept or reject at EOS
+                       if (!*++p)
+                       {
+                               state = dspaccept[j];           // (-1 on no terminal match)
+                               break;
+                       }
+
+                       state = dsptab[j];
+               }
+
+               // Call DSP code generator if we found a mnemonic
+               if (state >= 2000)
+               {
+                       LONG parcode;
+                       int operands;
+                       MNTABDSP * md = &dsp56k_machtab[state - 2000];
+                       deposit_extra_ea = 0;   // Assume no extra word needed
+
+                       if (md->mnfunc == dsp_mult)
+                       {
+                               // Special case for multiplication instructions: they require
+                               // 3 operands
+                               if ((operands = dsp_amode(3)) == ERROR)
+                                       goto loop;
+                       }
+                       else if ((md->mnattr & PARMOVE) && md->mn0 != M_AM_NONE)
+                       {
+                               if (dsp_amode(2) == ERROR)
+                                       goto loop;
+                       }
+                       else if ((md->mnattr & PARMOVE) && md->mn0 == M_AM_NONE)
+                       {
+                               // Instructions that have parallel moves but use no operands
+                               // (probably only move). In this case, don't parse addressing
+                               // modes--just go straight to parallel parse
+                               dsp_am0 = dsp_am1 = M_AM_NONE;
+                       }
+                       else
+                       {
+                               // Non parallel move instructions can have up to 4 parameters
+                               // (well, only tcc instructions really)
+                               if ((operands = dsp_amode(4)) == ERROR)
+                                       goto loop;
+
+                               if (operands == 4)
+                               {
+                                       dsp_tcc4(md->mninst);
+                                       goto loop;
+                               }
+                       }
+
+                       if (md->mnattr & PARMOVE)
+                       {
+                               // Check for parallel moves
+                               if ((parcode = parmoves(dsp_a1reg)) == ERROR)
+                                       goto loop;
+                       }
+                       else
+                       {
+                               if (*tok != EOL)
+                                       error("parallel moves not allowed with this instruction");
+
+                               parcode = 0;
+                       }
+
+                       while ((dsp_am0 & md->mn0) == 0 || (dsp_am1 & md->mn1) == 0)
+                               md = &dsp56k_machtab[md->mncont];
+
+                       (*md->mnfunc)(md->mninst | (parcode << 8));
+                       goto loop;
+               }
+       }
+
        // Invoke macro or complain about bad mnemonic
        if (state < 0)
        {
@@ -723,16 +862,13 @@ When checking to see if it's already been equated, issue a warning.
        // Keep a backup of chptr (used for optimisations during codegen)
        chptr_opcode = chptr;
 
-       for(;;)
-       {
-               if ((m->mnattr & siz) && (amsk0 & m->mn0) != 0 && (amsk1 & m->mn1) != 0)
-               {
-                       (*m->mnfunc)(m->mninst, siz);
-                       goto loop;
-               }
-
+       while (!(m->mnattr & siz) || (amsk0 & m->mn0) == 0 || (amsk1 & m->mn1) == 0)
                m = &machtab[m->mncont];
-       }
+
+       DEBUG { printf("    68K: mninst=$%X, siz=$%X, mnattr=$%X, amsk0=$%X, mn0=$%X, amsk1=$%X, mn1=$%X\n", m->mninst, siz, m->mnattr, amsk0, m->mn0, amsk1, m->mn1); }
+
+       (*m->mnfunc)(m->mninst, siz);
+       goto loop;
 }