X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=riscasm.c;h=a76cb2e19a1438310e38939571546a29cc1569cb;hp=6238cf9b0d93489f62b9e5dfa649c14f07b5afe1;hb=f3c7d186a15b89c39e360b9cc89545a0d24bd6a4;hpb=03dd34951a331e0b8971195ccef1600fffaea2e6 diff --git a/riscasm.c b/riscasm.c index 6238cf9..a76cb2e 100644 --- a/riscasm.c +++ b/riscasm.c @@ -127,38 +127,30 @@ void strtoupper(char * s) // static inline int MalformedOpcode(int signal) { - char buf[16]; - sprintf(buf, "%02X", signal); - return errors("Malformed opcode [internal $%s]", buf); + return error("Malformed opcode [internal $%02X]", signal); } + // // Function to return "Illegal Indexed Register" error // Anyone trying to index something other than R14 or R15 // static inline int IllegalIndexedRegister(int reg) { - char buf[16]; - sprintf(buf, "%d", reg - KW_R0); - return errors("Attempted index reference with non-indexable register (r%s)", buf); + return error("Attempted index reference with non-indexable register (r%d)", reg - KW_R0); } + // // Function to return "Illegal Indexed Register" error for EQUR scenarios // Trying to use register value within EQUR that isn't 14 or 15 // -static inline int IllegalIndexedRegisterEqur(SYM *sy) +static inline int IllegalIndexedRegisterEqur(SYM * sy) { - //char buf[160]; - char *buf = NULL; - buf = (char *)malloc((strlen(sy->sname) + 7) * sizeof(char)); - if (NULL != buf) { - sprintf(buf, "%s = r%d",sy->sname, sy->svalue); - return errors("Attempted index reference with non-indexable register within EQUR (%s)", buf); - } - return errors("Unable to allocate memory! (IllegalIndexRegisterEqur)", "OOPS"); + return error("Attempted index reference with non-indexable register within EQUR (%s = r%d)", sy->sname, sy->svalue); } + // // Build RISC instruction word // @@ -182,13 +174,13 @@ void BuildRISCIntructionWord(unsigned short opcode, int reg1, int reg2) // int GetRegister(WORD rattr) { - VALUE eval; // Expression value + uint64_t eval; // Expression value WORD eattr; // Expression attributes SYM * esym; // External symbol involved in expr. TOKEN r_expr[EXPRSIZE]; // Expression token list // Evaluate what's in the global "tok" buffer - if (expr(r_expr, &eval, &eattr, &esym) != OK) + if (expr((TOKENPTR)r_expr, &eval, &eattr, &esym) != OK) return ERROR; if ((challoc - ch_size) < 4) @@ -196,13 +188,13 @@ int GetRegister(WORD rattr) if (!(eattr & DEFINED)) { - AddFixup((WORD)(FU_WORD | rattr), sloc, r_expr); + AddFixup((WORD)(FU_WORD | rattr), sloc, (TOKENPTR)r_expr); return 0; } // If we got a register in range (0-31), return it if ((eval >= 0) && (eval <= 31)) - return eval; + return (int)eval; // Otherwise, it's out of range & we flag an error return error(reg_err); @@ -225,7 +217,7 @@ int GenerateRISCCode(int state) WORD attrflg; int indexed; // Indexed register flag - VALUE eval; // Expression value + uint64_t eval; // Expression value WORD eattr; // Expression attributes SYM * esym; // External symbol involved in expr. TOKEN r_expr[EXPRSIZE]; // Expression token list @@ -306,13 +298,13 @@ int GenerateRISCCode(int state) if (parm & SUB32) attrflg |= FU_SUB32; - if (*tok != '#') + if (*tok.u32 != '#') return MalformedOpcode(0x01); - tok++; + tok.u32++; riscImmTokenSeen = 1; - if (expr(r_expr, &eval, &eattr, &esym) != OK) + if (expr((TOKENPTR)r_expr, &eval, &eattr, &esym) != OK) return MalformedOpcode(0x02); if ((challoc - ch_size) < 4) @@ -320,7 +312,7 @@ int GenerateRISCCode(int state) if (!(eattr & DEFINED)) { - AddFixup((WORD)(FU_WORD | attrflg), sloc, r_expr); + AddFixup((WORD)(FU_WORD | attrflg), sloc, (TOKENPTR)r_expr); reg1 = 0; } else @@ -329,11 +321,11 @@ int GenerateRISCCode(int state) return error("constant out of range"); if (parm & SUB32) - reg1 = 32 - eval; + reg1 = 32 - (int)eval; else if (type == RI_NUM_32) - reg1 = (reg1 == 32 ? 0 : eval); + reg1 = (reg1 == 32 ? 0 : (int)eval); else - reg1 = eval; + reg1 = (int)eval; } CHECK_COMMA; @@ -344,22 +336,22 @@ int GenerateRISCCode(int state) // Move Immediate--n,Rn--n in Second Word case RI_MOVEI: - if (*tok != '#') + if (*tok.u32 != '#') return MalformedOpcode(0x03); - tok++; + tok.u32++; riscImmTokenSeen = 1; // Check for equated register after # and return error if so - if (*tok == SYMBOL) + if (*tok.u32 == SYMBOL) { - sy = lookup(string[tok[1]], LABEL, 0); + sy = lookup(string[tok.u32[1]], LABEL, 0); if (sy && (sy->sattre & EQUATEDREG)) return error("equated register in 1st operand of MOVEI instruction"); } - if (expr(r_expr, &eval, &eattr, &esym) != OK) + if (expr((TOKENPTR)r_expr, &eval, &eattr, &esym) != OK) return MalformedOpcode(0x04); if (lastOpcode == RI_JUMP || lastOpcode == RI_JR) @@ -379,7 +371,7 @@ int GenerateRISCCode(int state) if (!(eattr & DEFINED)) { - AddFixup(FU_LONG | FU_MOVEI, sloc + 2, r_expr); + AddFixup(FU_LONG | FU_MOVEI, sloc + 2, (TOKENPTR)r_expr); eval = 0; } else @@ -402,11 +394,11 @@ int GenerateRISCCode(int state) // PC,Rd or Rs,Rd case RI_MOVE: - if (*tok == KW_PC) + if (*tok.u32 == KW_PC) { parm = 51; reg1 = 0; - tok++; + tok.u32++; } else { @@ -425,24 +417,24 @@ int GenerateRISCCode(int state) indexed = 0; parm = 41; - if (*tok != '(') + if (*tok.u32 != '(') return MalformedOpcode(0x05); - tok++; + tok.u32++; - if ((*(tok + 1) == '+') || (*(tok + 1) == '-')) { + if ((*(tok.u32 + 1) == '+') || (*(tok.u32 + 1) == '-')) { // Trying to make indexed call - if ((*tok == KW_R14 || *tok == KW_R15)) { - indexed = (*tok - KW_R0); + if ((*tok.u32 == KW_R14 || *tok.u32 == KW_R15)) { + indexed = (*tok.u32 - KW_R0); } else { - return IllegalIndexedRegister(*tok); + return IllegalIndexedRegister(*tok.u32); } } - if (*tok == SYMBOL) + if (*tok.u32 == SYMBOL) { -// sy = lookup((char *)tok[1], LABEL, 0); - sy = lookup(string[tok[1]], LABEL, 0); +// sy = lookup((char *)tok.u32[1], LABEL, 0); + sy = lookup(string[tok.u32[1]], LABEL, 0); if (!sy) { @@ -452,10 +444,10 @@ int GenerateRISCCode(int state) if (sy->sattre & EQUATEDREG) { - if ((*(tok + 2) == '+') || (*(tok + 2) == '-')) { + if ((*(tok.u32 + 2) == '+') || (*(tok.u32 + 2) == '-')) { if ((sy->svalue & 0x1F) == 14 || (sy->svalue & 0x1F) == 15) { indexed = (sy->svalue & 0x1F); - tok++; + tok.u32++; } else { return IllegalIndexedRegisterEqur(sy); } @@ -471,20 +463,20 @@ int GenerateRISCCode(int state) { reg1 = indexed; indexed = 0; - tok++; + tok.u32++; - if (*tok == '+') + if (*tok.u32 == '+') { parm = (WORD)(reg1 - 14 + 58); - tok++; + tok.u32++; - if (*tok >= KW_R0 && *tok <= KW_R31) + if (*tok.u32 >= KW_R0 && *tok.u32 <= KW_R31) indexed = 1; - if (*tok == SYMBOL) + if (*tok.u32 == SYMBOL) { -// sy = lookup((char *)tok[1], LABEL, 0); - sy = lookup(string[tok[1]], LABEL, 0); +// sy = lookup((char *)tok.u32[1], LABEL, 0); + sy = lookup(string[tok.u32[1]], LABEL, 0); if (!sy) { @@ -502,7 +494,7 @@ int GenerateRISCCode(int state) } else { - if (expr(r_expr, &eval, &eattr, &esym) != OK) + if (expr((TOKENPTR)r_expr, &eval, &eattr, &esym) != OK) return MalformedOpcode(0x06); if ((challoc - ch_size) < 4) @@ -511,7 +503,7 @@ int GenerateRISCCode(int state) if (!(eattr & DEFINED)) return error("constant expected after '+'"); - reg1 = eval; + reg1 = (int)eval; if (reg1 == 0) { @@ -537,10 +529,10 @@ int GenerateRISCCode(int state) } } - if (*tok != ')') + if (*tok.u32 != ')') return MalformedOpcode(0x07); - tok++; + tok.u32++; CHECK_COMMA; reg2 = GetRegister(FU_REGTWO); at_eol(); @@ -553,18 +545,18 @@ int GenerateRISCCode(int state) reg1 = GetRegister(FU_REGONE); CHECK_COMMA; - if (*tok != '(') + if (*tok.u32 != '(') return MalformedOpcode(0x08); - tok++; + tok.u32++; indexed = 0; - if ((*tok == KW_R14 || *tok == KW_R15) && (*(tok + 1) != ')')) - indexed = (*tok - KW_R0); + if ((*tok.u32 == KW_R14 || *tok.u32 == KW_R15) && (*(tok.u32 + 1) != ')')) + indexed = (*tok.u32 - KW_R0); - if (*tok == SYMBOL) + if (*tok.u32 == SYMBOL) { - sy = lookup(string[tok[1]], LABEL, 0); + sy = lookup(string[tok.u32[1]], LABEL, 0); if (!sy) { @@ -575,10 +567,10 @@ int GenerateRISCCode(int state) if (sy->sattre & EQUATEDREG) { if (((sy->svalue & 0x1F) == 14 || (sy->svalue & 0x1F) == 15) - && (*(tok + 2) != ')')) + && (*(tok.u32 + 2) != ')')) { indexed = (sy->svalue & 0x1F); - tok++; + tok.u32++; } } } @@ -591,19 +583,19 @@ int GenerateRISCCode(int state) { reg2 = indexed; indexed = 0; - tok++; + tok.u32++; - if (*tok == '+') + if (*tok.u32 == '+') { parm = (WORD)(reg2 - 14 + 60); - tok++; + tok.u32++; - if (*tok >= KW_R0 && *tok <= KW_R31) + if (*tok.u32 >= KW_R0 && *tok.u32 <= KW_R31) indexed = 1; - if (*tok == SYMBOL) + if (*tok.u32 == SYMBOL) { - sy = lookup(string[tok[1]], LABEL, 0); + sy = lookup(string[tok.u32[1]], LABEL, 0); if (!sy) { @@ -621,7 +613,7 @@ int GenerateRISCCode(int state) } else { - if (expr(r_expr, &eval, &eattr, &esym) != OK) + if (expr((TOKENPTR)r_expr, &eval, &eattr, &esym) != OK) return MalformedOpcode(0x09); if ((challoc - ch_size) < 4) @@ -629,12 +621,12 @@ int GenerateRISCCode(int state) if (!(eattr & DEFINED)) { - AddFixup(FU_WORD | FU_REGTWO, sloc, r_expr); + AddFixup(FU_WORD | FU_REGTWO, sloc, (TOKENPTR)r_expr); reg2 = 0; } else { - reg2 = eval; + reg2 = (int)eval; if (reg2 == 0) { @@ -661,26 +653,26 @@ int GenerateRISCCode(int state) } } - if (*tok != ')') + if (*tok.u32 != ')') return MalformedOpcode(0x0A); - tok++; + tok.u32++; at_eol(); BuildRISCIntructionWord(parm, reg2, reg1); break; // LOADB/LOADP/LOADW (Rn),Rn case RI_LOADN: - if (*tok != '(') + if (*tok.u32 != '(') return MalformedOpcode(0x0B); - tok++; + tok.u32++; reg1 = GetRegister(FU_REGONE); - if (*tok != ')') + if (*tok.u32 != ')') return MalformedOpcode(0x0C); - tok++; + tok.u32++; CHECK_COMMA; reg2 = GetRegister(FU_REGTWO); at_eol(); @@ -692,16 +684,16 @@ int GenerateRISCCode(int state) reg1 = GetRegister(FU_REGONE); CHECK_COMMA; - if (*tok != '(') + if (*tok.u32 != '(') return MalformedOpcode(0x0D); - tok++; + tok.u32++; reg2 = GetRegister(FU_REGTWO); - if (*tok != ')') + if (*tok.u32 != ')') return MalformedOpcode(0x0E); - tok++; + tok.u32++; at_eol(); BuildRISCIntructionWord(parm, reg2, reg1); break; @@ -715,7 +707,7 @@ int GenerateRISCCode(int state) // the JR or JUMP should default to 0, Jump Always commaFound = 0; - for(t=tok; *t!=EOL; t++) + for(t=tok.u32; *t!=EOL; t++) { if (*t == ',') { @@ -726,19 +718,20 @@ int GenerateRISCCode(int state) if (commaFound) { - if (*tok == CONST) + if (*tok.u32 == CONST) { // CC using a constant number - tok++; - val = *tok; - tok++; + tok.u32++; + uint64_t *tok64 = (uint64_t *)tok.u32; + val = (int)*tok64++; + tok.u32 = (uint32_t *)tok64; CHECK_COMMA; } - else if (*tok == SYMBOL) + else if (*tok.u32 == SYMBOL) { val = 99; -// strcpy(scratch, (char *)tok[1]); - strcpy(scratch, string[tok[1]]); +// strcpy(scratch, (char *)tok.u32[1]); + strcpy(scratch, string[tok.u32[1]]); strtoupper(scratch); for(i=0; isattre & EQUATEDCC) && !(ccsym->sattre & UNDEF_CC)) - { val = ccsym->svalue; - } else return error("unknown condition code"); } - tok += 2; + tok.u32 += 2; CHECK_COMMA; } - else if (*tok == '(') + else if (*tok.u32 == '(') { // Set CC to "Jump Always" val = 0; @@ -789,7 +780,7 @@ int GenerateRISCCode(int state) if (type == RI_JR) { // JR cc,n - if (expr(r_expr, &eval, &eattr, &esym) != OK) + if (expr((TOKENPTR)r_expr, &eval, &eattr, &esym) != OK) return MalformedOpcode(0x0F); if ((challoc - ch_size) < 4) @@ -797,7 +788,7 @@ int GenerateRISCCode(int state) if (!(eattr & DEFINED)) { - AddFixup(FU_WORD | FU_JR, sloc, r_expr); + AddFixup(FU_WORD | FU_JR, sloc, (TOKENPTR)r_expr); reg2 = 0; } else @@ -805,7 +796,7 @@ int GenerateRISCCode(int state) reg2 = ((int)(eval - ((orgactive ? orgaddr : sloc) + 2))) / 2; if ((reg2 < -16) || (reg2 > 15)) - error("PC relative overflow"); + error("PC relative overflow (outside of -16 to 15)"); } BuildRISCIntructionWord(parm, reg2, reg1); @@ -813,16 +804,16 @@ int GenerateRISCCode(int state) else { // JUMP cc, (Rn) - if (*tok != '(') + if (*tok.u32 != '(') return MalformedOpcode(0x10); - tok++; + tok.u32++; reg2 = GetRegister(FU_REGTWO); - if (*tok != ')') + if (*tok.u32 != ')') return MalformedOpcode(0x11); - tok++; + tok.u32++; at_eol(); BuildRISCIntructionWord(parm, reg2, reg1); }