Code cleanup from last patch, also, version bump for same. :-)
[rmac] / procln.c
index 3b8c607db3c8c5ed40ffc6778da64bda7e36aa86..c7d47134e0a08f7b558b6b6d85259529a417ee09 100644 (file)
--- a/procln.c
+++ b/procln.c
@@ -1,24 +1,25 @@
 //
 // RMAC - Reboot's Macro Assembler for the Atari Jaguar Console System
 // PROCLN.C - Line Processing
-// Copyright (C) 199x Landon Dyer, 2011 Reboot and Friends
+// Copyright (C) 199x Landon Dyer, 2017 Reboot and Friends
 // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
 // Source utilised with the kind permission of Landon Dyer
 //
 
 #include "procln.h"
-#include "listing.h"
+#include "6502.h"
 #include "amode.h"
+#include "direct.h"
 #include "error.h"
-#include "sect.h"
 #include "expr.h"
+#include "listing.h"
 #include "mach.h"
-#include "direct.h"
 #include "macro.h"
-#include "symbol.h"
 #include "riscasm.h"
+#include "sect.h"
+#include "symbol.h"
 
-#define DEF_KW                                 // Declare keyword values 
+#define DEF_KW                                 // Declare keyword values
 #include "kwtab.h"                             // Incl generated keyword tables & defs
 
 #define DEF_MN                                 // Incl 68k keyword definitions
 #define DECL_MR
 #include "risckw.h"
 
+#define DEF_MP                                 // Include 6502 keyword definitions
+#define DECL_MP                                        // Include 6502 keyword state machine tables
+#include "6502kw.h"
 
 IFENT * ifent;                                 // Current ifent
 static IFENT ifent0;                   // Root ifent
 static IFENT * f_ifent;                        // Freelist of ifents
 static int disabled;                   // Assembly conditionally disabled
-int just_bss;                                  // 1, ds.b in microprocessor mode 
-VALUE pcloc;                                   // Value of "PC" at beginning of line 
+int just_bss;                                  // 1, ds.b in microprocessor mode
+VALUE pcloc;                                   // Value of "PC" at beginning of line
 SYM * lab_sym;                                 // Label on line (or NULL)
 
 const char extra_stuff[] = "extra (unexpected) text found after addressing mode";
@@ -45,7 +49,7 @@ const char locgl_error[] = "cannot GLOBL local symbol";
 const char lab_ignored[] = "label ignored";
 
 // Table to convert an addressing-mode number to a bitmask.
-LONG amsktab[0112] = {
+LONG amsktab[0124] = {
        M_DREG, M_DREG, M_DREG, M_DREG,
        M_DREG, M_DREG, M_DREG, M_DREG,
 
@@ -67,25 +71,35 @@ LONG amsktab[0112] = {
        M_AINDEXED, M_AINDEXED, M_AINDEXED, M_AINDEXED,
        M_AINDEXED, M_AINDEXED, M_AINDEXED, M_AINDEXED,
 
-       M_ABSW,                                                                                 // 070
-       M_ABSL,                                                                                 // 071
-       M_PCDISP,                                                                               // 072
-       M_PCINDEXED,                                                                    // 073
-       M_IMMED,                                                                                // 074
-       0L,                                                                                             // 075
-       0L,                                                                                             // 076
-       0L,                                                                                             // 077
-       M_ABASE,                                                                                // 0100
-       M_MEMPOST,                                                                              // 0101 
-       M_MEMPRE,                                                                               // 0102 
-       M_PCBASE,                                                                               // 0103
-       M_PCMPOST,                                                                              // 0104
-       M_PCMPRE,                                                                               // 0105
-       M_AM_USP,                                                                               // 0106
-       M_AM_SR,                                                                                // 0107 
-       M_AM_CCR,                                                                               // 0110
-       M_AM_NONE                                                                               // 0111 
-};                                                                                                     // 0112 length
+       M_ABSW,                 // 070
+       M_ABSL,                 // 071
+       M_PCDISP,               // 072
+       M_PCINDEXED,    // 073
+       M_IMMED,                // 074
+       0L,                             // 075
+       0L,                             // 076
+       0L,                             // 077
+       M_ABASE,                // 0100
+       M_MEMPOST,              // 0101
+       M_MEMPRE,               // 0102
+       M_PCBASE,               // 0103
+       M_PCMPOST,              // 0104
+       M_PCMPRE,               // 0105
+       M_AM_USP,               // 0106
+       M_AM_SR,                // 0107
+       M_AM_CCR,               // 0110
+       M_AM_NONE,              // 0111
+       0x30,                   // 0112
+       0x30,                   // 0113
+       0L,                             // 0114
+       0L,                             // 0115
+       0L,                             // 0116
+       0L,                             // 0117
+       M_CREG,                 // 0120 (caches - TODO: is this correct or does it need its own bitfield?)
+       M_CREG,                 // 0121
+       M_FREG,                 // 0122
+       M_FPSCR                 // 0123
+};                                     // 0123 length
 
 
 // Function prototypes
@@ -173,6 +187,9 @@ loop1:                                                                              // Internal line processing loop
        // First token MUST be a symbol (Shamus: not sure why :-/)
        if (*tok != SYMBOL)
        {
+        if (*tok>=KW_D0 && *tok<=KW_R31)
+            error("cannot use reserved keyword as label name or .equ");
+        else
                error("syntax error; expected symbol");
                goto loop;
        }
@@ -251,12 +268,23 @@ as68label:
        // Check for ".b" ".w" ".l" after directive, macro or mnemonic.
        siz = SIZN;
 
-       if (*tok == DOTW) 
+       if (*tok == DOTW)
                siz = SIZW, tok++;
        else if (*tok == DOTL)
                siz = SIZL, tok++;
        else if (*tok == DOTB)
                siz = SIZB, tok++;
+       else if(*tok == DOTD)
+               siz = SIZD, tok++;
+       else if(*tok == DOTP)
+               siz = SIZP, tok++;
+       else if(*tok == DOTQ)
+               siz = SIZQ, tok++;
+       else if(*tok == DOTS)
+               siz = SIZS, tok++;
+       else if(*tok == DOTX)
+               siz = SIZX, tok++;
+
 
        // Do special directives (500..999) (These must be handled in "real time")
        if (state >= 500 && state < 1000)
@@ -368,8 +396,8 @@ normal:
                {
                        if ((equtyp == EQUREG) && (sy->sattre & UNDEF_EQUR))
                        {
-//REALLY?                              sy->sattre |= ~UNDEF_EQUR; 
-                               sy->sattre &= ~UNDEF_EQUR; 
+//REALLY?                              sy->sattre |= ~UNDEF_EQUR;
+                               sy->sattre &= ~UNDEF_EQUR;
                                sy->svalue = 0;
                        }
                        else if ((equtyp == CCDEF) && (sy->sattre & UNDEF_CC))
@@ -566,6 +594,41 @@ When checking to see if it's already been equated, issue a warning.
        if (state == -3)
                goto loop;
 
+       // If we're in 6502 mode and are still in need of a mnemonic, then search
+       // for valid 6502 mnemonic.
+       if (m6502 && (state < 0 || state >= 1000))
+       {
+#ifdef ST
+               state = kmatch(opname, mpbase, mpcheck, mptab, mpaccept);
+#else
+               for(state=0, p=opname; state>= 0; )
+               {
+                       j = mpbase[state] + tolowertab[*p];
+
+                       if (mpcheck[j] != state)        // Reject, character doesn't match
+                       {
+                               state = -1;             // No match
+                               break;
+                       }
+
+                       if (!*++p)
+                       {                       // Must accept or reject at EOS
+                               state = mpaccept[j];    // (-1 on no terminal match)
+                               break;
+                       }
+
+                       state = mptab[j];
+               }
+#endif
+
+               // Call 6502 code generator if we found a mnemonic
+               if (state >= 2000)
+               {
+                       m6502cg(state - 2000);
+                       goto loop;
+               }
+       }
+
        // If we are in GPU or DSP mode and still in need of a mnemonic then search
        // for one
        if ((rgpu || rdsp) && (state < 0 || state >= 1000))
@@ -602,7 +665,7 @@ When checking to see if it's already been equated, issue a warning.
        // Invoke macro or complain about bad mnemonic
        if (state < 0)
        {
-               if ((sy = lookup(opname, MACRO, 0)) != NULL) 
+               if ((sy = lookup(opname, MACRO, 0)) != NULL)
                        InvokeMacro(sy, siz);
                else
                        errors("unknown op '%s'", opname);
@@ -660,6 +723,9 @@ When checking to see if it's already been equated, issue a warning.
                goto loop;
        }
 
+       // 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)
@@ -724,7 +790,7 @@ int HandleLabel(char * label, int labelType)
 }
 
 
-// 
+//
 // .if, Start conditional assembly
 //
 int d_if(void)
@@ -759,7 +825,7 @@ int d_if(void)
 }
 
 
-// 
+//
 // .else, Do alternate case for .if
 //
 int d_else(void)