X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=mach.c;h=9f0938dad6aaf19d33f1109f4c16f76a36fa8599;hp=ca7e17c7d3bd546b291be3ac9bf217205050a314;hb=5f23454f7155f0c77ea1bede3f9e60b39da99fa8;hpb=f33d7fdb41ccdda027c33c5358a3826bef83967b diff --git a/mach.c b/mach.c index ca7e17c..9f0938d 100644 --- a/mach.c +++ b/mach.c @@ -7,19 +7,23 @@ // #include "mach.h" -#include "error.h" -#include "sect.h" +#include "amode.h" #include "direct.h" -#include "token.h" +#include "eagen.h" +#include "error.h" #include "procln.h" #include "riscasm.h" -#include "rmac.h" +//#include "rmac.h" +#include "sect.h" +#include "token.h" #define DEF_KW #include "kwtab.h" +// Exported variables +int movep = 0; // Global flag to indicate we're generating a movep instruction -// Fucntion prototypes +// Function prototypes int m_unimp(WORD, WORD), m_badmode(WORD, WORD), m_bad6mode(WORD, WORD), m_bad6inst(WORD, WORD); int m_self(WORD, WORD); int m_abcd(WORD, WORD); @@ -31,6 +35,7 @@ int m_shr(WORD, WORD); int m_bitop(WORD, WORD); int m_exg(WORD, WORD); int m_ea(WORD, WORD); +int m_lea(WORD, WORD); int m_br(WORD, WORD); int m_dbra(WORD, WORD); int m_link(WORD, WORD); @@ -45,6 +50,234 @@ int m_trap(WORD, WORD); int m_movem(WORD, WORD); int m_clra(WORD, WORD); +int m_move30(WORD, WORD); //68020/30/40/60 +int m_br30(WORD inst, WORD siz); +int m_ea030(WORD inst, WORD siz); +int m_bfop(WORD inst, WORD siz); +int m_callm(WORD inst, WORD siz); +int m_cas(WORD inst, WORD siz); +int m_cas2(WORD inst, WORD siz); +int m_chk2(WORD inst, WORD siz); +int m_cmp2(WORD inst, WORD siz); +int m_bkpt(WORD inst, WORD siz); +int m_cpbr(WORD inst, WORD siz); +int m_cpdbr(WORD inst, WORD siz); +int m_divs(WORD inst, WORD siz); +int m_muls(WORD inst, WORD siz); +int m_divu(WORD inst, WORD siz); +int m_mulu(WORD inst, WORD siz); +int m_divsl(WORD inst, WORD siz); +int m_divul(WORD inst, WORD siz); +int m_move16a(WORD inst, WORD siz); +int m_move16b(WORD inst, WORD siz); +int m_pack(WORD inst, WORD siz); +int m_rtm(WORD inst, WORD siz); +int m_rtd(WORD inst, WORD siz); +int m_trapcc(WORD inst, WORD siz); +int m_cinv(WORD inst, WORD siz); +int m_cprest(WORD inst, WORD siz); +int m_movec(WORD inst, WORD siz); +int m_moves(WORD inst, WORD siz); + +// PMMU +int m_pbcc(WORD inst, WORD siz); +int m_pflusha(WORD inst, WORD siz); +int m_pflush(WORD inst, WORD siz); +int m_pflushr(WORD inst, WORD siz); +int m_pload(WORD inst, WORD siz); +int m_pmove(WORD inst, WORD siz); +int m_pmovefd(WORD inst, WORD siz); +int m_ptest(WORD inst, WORD siz); +int m_ptrapbs(WORD inst, WORD siz); +int m_ptrapbc(WORD inst, WORD siz); +int m_ptrapls(WORD inst, WORD siz); +int m_ptraplc(WORD inst, WORD siz); +int m_ptrapss(WORD inst, WORD siz); +int m_ptrapsc(WORD inst, WORD siz); +int m_ptrapas(WORD inst, WORD siz); +int m_ptrapac(WORD inst, WORD siz); +int m_ptrapws(WORD inst, WORD siz); +int m_ptrapwc(WORD inst, WORD siz); +int m_ptrapis(WORD inst, WORD siz); +int m_ptrapic(WORD inst, WORD siz); +int m_ptrapgc(WORD inst, WORD siz); +int m_ptrapgs(WORD inst, WORD siz); +int m_ptrapcs(WORD inst, WORD siz); +int m_ptrapcc(WORD inst, WORD siz); +int m_ptrapbsn(WORD inst, WORD siz); +int m_ptrapbcn(WORD inst, WORD siz); +int m_ptraplsn(WORD inst, WORD siz); +int m_ptraplcn(WORD inst, WORD siz); +int m_ptrapssn(WORD inst, WORD siz); +int m_ptrapscn(WORD inst, WORD siz); +int m_ptrapasn(WORD inst, WORD siz); +int m_ptrapacn(WORD inst, WORD siz); +int m_ptrapwsn(WORD inst, WORD siz); +int m_ptrapwcn(WORD inst, WORD siz); +int m_ptrapisn(WORD inst, WORD siz); +int m_ptrapicn(WORD inst, WORD siz); +int m_ptrapgsn(WORD inst, WORD siz); +int m_ptrapgcn(WORD inst, WORD siz); +int m_ptrapcsn(WORD inst, WORD siz); +int m_ptrapccn(WORD inst, WORD siz); + +//FPU +int m_fabs(WORD inst, WORD siz); +int m_facos(WORD inst, WORD siz); +int m_fadd(WORD inst, WORD siz); +int m_fasin(WORD inst, WORD siz); +int m_fatan(WORD inst, WORD siz); +int m_fatanh(WORD inst, WORD siz); +int m_fcmp(WORD inst, WORD siz); +int m_fcos(WORD inst, WORD siz); +int m_fcosh(WORD inst, WORD siz); +int m_fdabs(WORD inst, WORD siz); +int m_fdadd(WORD inst, WORD siz); +int m_fdbcc(WORD inst, WORD siz); +int m_fddiv(WORD inst, WORD siz); +int m_fdfsqrt(WORD inst, WORD siz); +int m_fdiv(WORD inst, WORD siz); +int m_fdmove(WORD inst, WORD siz); +int m_fdmul(WORD inst, WORD siz); +int m_fdneg(WORD inst, WORD siz); +int m_fdsub(WORD inst, WORD siz); +int m_fetox(WORD inst, WORD siz); +int m_fetoxm1(WORD inst, WORD siz); +int m_fgetexp(WORD inst, WORD siz); +int m_fgetman(WORD inst, WORD siz); +int m_fint(WORD inst, WORD siz); +int m_fintrz(WORD inst, WORD siz); +int m_flog10(WORD inst, WORD siz); +int m_flog2(WORD inst, WORD siz); +int m_flogn(WORD inst, WORD siz); +int m_flognp1(WORD inst, WORD siz); +int m_fmod(WORD inst, WORD siz); +int m_fmove(WORD inst, WORD siz); +int m_fmovescr(WORD inst, WORD siz); +int m_fmovecr(WORD inst, WORD siz); +int m_fmovem(WORD inst, WORD siz); +int m_fmul(WORD inst, WORD siz); +int m_fneg(WORD inst, WORD siz); +int m_fnop(WORD inst, WORD siz); +int m_frem(WORD inst, WORD siz); +int m_fsabs(WORD inst, WORD siz); +int m_fsadd(WORD inst, WORD siz); +int m_fseq(WORD inst, WORD siz); +int m_fsne(WORD inst, WORD siz); +int m_fsgt(WORD inst, WORD siz); +int m_fsngt(WORD inst, WORD siz); +int m_fsge(WORD inst, WORD siz); +int m_fsnge(WORD inst, WORD siz); +int m_fslt(WORD inst, WORD siz); +int m_fsnlt(WORD inst, WORD siz); +int m_fsle(WORD inst, WORD siz); +int m_fsnle(WORD inst, WORD siz); +int m_fsgl(WORD inst, WORD siz); +int m_fsngl(WORD inst, WORD siz); +int m_fsgle(WORD inst, WORD siz); +int m_fsngle(WORD inst, WORD siz); +int m_fsogt(WORD inst, WORD siz); +int m_fsule(WORD inst, WORD siz); +int m_fsoge(WORD inst, WORD siz); +int m_fsult(WORD inst, WORD siz); +int m_fsolt(WORD inst, WORD siz); +int m_fsuge(WORD inst, WORD siz); +int m_fsole(WORD inst, WORD siz); +int m_fsugt(WORD inst, WORD siz); +int m_fsogl(WORD inst, WORD siz); +int m_fsueq(WORD inst, WORD siz); +int m_fsor(WORD inst, WORD siz); +int m_fsun(WORD inst, WORD siz); +int m_fsf(WORD inst, WORD siz); +int m_fst(WORD inst, WORD siz); +int m_fssf(WORD inst, WORD siz); +int m_fsst(WORD inst, WORD siz); +int m_fsseq(WORD inst, WORD siz); +int m_fssne(WORD inst, WORD siz); +int m_fscale(WORD inst, WORD siz); +int m_fsdiv(WORD inst, WORD siz); +int m_fsfsqrt(WORD inst, WORD siz); +int m_fsfsub(WORD inst, WORD siz); +int m_fsgldiv(WORD inst, WORD siz); +int m_fsglmul(WORD inst, WORD siz); +int m_fsin(WORD inst, WORD siz); +int m_fsincos(WORD inst, WORD siz); +int m_fsinh(WORD inst, WORD siz); +int m_fsmove(WORD inst, WORD siz); +int m_fsmul(WORD inst, WORD siz); +int m_fsneg(WORD inst, WORD siz); +int m_fsqrt(WORD inst, WORD siz); +int m_fsub(WORD inst, WORD siz); +int m_ftan(WORD inst, WORD siz); +int m_ftanh(WORD inst, WORD siz); +int m_ftentox(WORD inst, WORD siz); +int m_ftst(WORD inst, WORD siz); +int m_ftwotox(WORD inst, WORD siz); +int m_ftrapeq(WORD inst, WORD siz); +int m_ftrapne(WORD inst, WORD siz); +int m_ftrapgt(WORD inst, WORD siz); +int m_ftrapngt(WORD inst, WORD siz); +int m_ftrapge(WORD inst, WORD siz); +int m_ftrapnge(WORD inst, WORD siz); +int m_ftraplt(WORD inst, WORD siz); +int m_ftrapnlt(WORD inst, WORD siz); +int m_ftraple(WORD inst, WORD siz); +int m_ftrapnle(WORD inst, WORD siz); +int m_ftrapgl(WORD inst, WORD siz); +int m_ftrapngl(WORD inst, WORD siz); +int m_ftrapgle(WORD inst, WORD siz); +int m_ftrapngle(WORD inst, WORD siz); +int m_ftrapogt(WORD inst, WORD siz); +int m_ftrapule(WORD inst, WORD siz); +int m_ftrapoge(WORD inst, WORD siz); +int m_ftrapult(WORD inst, WORD siz); +int m_ftrapolt(WORD inst, WORD siz); +int m_ftrapuge(WORD inst, WORD siz); +int m_ftrapole(WORD inst, WORD siz); +int m_ftrapugt(WORD inst, WORD siz); +int m_ftrapogl(WORD inst, WORD siz); +int m_ftrapueq(WORD inst, WORD siz); +int m_ftrapor(WORD inst, WORD siz); +int m_ftrapun(WORD inst, WORD siz); +int m_ftrapf(WORD inst, WORD siz); +int m_ftrapt(WORD inst, WORD siz); +int m_ftrapsf(WORD inst, WORD siz); +int m_ftrapst(WORD inst, WORD siz); +int m_ftrapseq(WORD inst, WORD siz); +int m_ftrapsne(WORD inst, WORD siz); +int m_ftrapeqn(WORD inst, WORD siz); +int m_ftrapnen(WORD inst, WORD siz); +int m_ftrapgtn(WORD inst, WORD siz); +int m_ftrapngtn(WORD inst, WORD siz); +int m_ftrapgen(WORD inst, WORD siz); +int m_ftrapngen(WORD inst, WORD siz); +int m_ftrapltn(WORD inst, WORD siz); +int m_ftrapnltn(WORD inst, WORD siz); +int m_ftraplen(WORD inst, WORD siz); +int m_ftrapnlen(WORD inst, WORD siz); +int m_ftrapgln(WORD inst, WORD siz); +int m_ftrapngln(WORD inst, WORD siz); +int m_ftrapglen(WORD inst, WORD siz); +int m_ftrapnglen(WORD inst, WORD siz); +int m_ftrapogtn(WORD inst, WORD siz); +int m_ftrapulen(WORD inst, WORD siz); +int m_ftrapogen(WORD inst, WORD siz); +int m_ftrapultn(WORD inst, WORD siz); +int m_ftrapoltn(WORD inst, WORD siz); +int m_ftrapugen(WORD inst, WORD siz); +int m_ftrapolen(WORD inst, WORD siz); +int m_ftrapugtn(WORD inst, WORD siz); +int m_ftrapogln(WORD inst, WORD siz); +int m_ftrapueqn(WORD inst, WORD siz); +int m_ftraporn(WORD inst, WORD siz); +int m_ftrapunn(WORD inst, WORD siz); +int m_ftrapfn(WORD inst, WORD siz); +int m_ftraptn(WORD inst, WORD siz); +int m_ftrapsfn(WORD inst, WORD siz); +int m_ftrapstn(WORD inst, WORD siz); +int m_ftrapseqn(WORD inst, WORD siz); +int m_ftrapsnen(WORD inst, WORD siz); + // Common error messages char range_error[] = "expression out of range"; char abs_error[] = "illegal absolute expression"; @@ -53,13 +286,10 @@ char rel_error[] = "illegal relative address"; char siz_error[] = "bad size specified"; char undef_error[] = "undefined expression"; char fwd_error[] = "forward or undefined expression"; - -extern int ea0gen(WORD); -extern int ea1gen(WORD); +char unsupport[] = "unsupported for selected CPU"; // Include code tables MNTAB machtab[] = { -// { (WORD)-1, (unsigned long)-1L, (unsigned long)-1L, 0x0000, 0, m_badmode }, // 0 { 0xFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x0000, 0, m_badmode }, // 0 #include "68ktab.h" { 0, 0L, 0L, 0x0000, 0, m_unimp } // Last entry @@ -97,6 +327,15 @@ WORD lwsiz_8[] = { 0 // SIZN }; +// Byte/Word/long size (0=.w, 1=.l) in bit 9 +WORD lwsiz_9[] = { + (WORD)-1, + 0, // Byte + 1<<9, (WORD)-1, // Word + 1<<10, (WORD)-1, (WORD)-1, (WORD)-1, // Long + 1<<9 // Word (SIZN) +}; + // Addressing mode in bits 6..11 (register/mode fields are reversed) WORD am_6[] = { 00000, 01000, 02000, 03000, 04000, 05000, 06000, 07000, @@ -109,6 +348,36 @@ WORD am_6[] = { 00700, 01700, 02700, 03700, 04700, 05700, 06700, 07700 }; +// Control registers lookup table +WORD CREGlut[21] = { + // MC68010/MC68020/MC68030/MC68040/CPU32 + 0x000, // Source Function Code(SFC) + 0x001, // Destination Function Code(DFC) + 0x800, // User Stack Pointer(USP) + 0x801, // Vector Base Register(VBR) + // MC68020 / MC68030 / MC68040 + 0x002, // Cache Control Register(CACR) + 0x802, // Cache Address Register(CAAR) (020/030 only) + 0x803, // Master Stack Pointer(MSP) + 0x804, // Interrupt Stack Pointer(ISP) + // MC68040 / MC68LC040 + 0x003, // MMU Translation Control Register(TC) + 0x004, // Instruction Transparent Translation Register 0 (ITT0) + 0x005, // Instruction Transparent Translation Register 1 (ITT1) + 0x006, // Data Transparent Translation Register 0 (DTT0) + 0x007, // Data Transparent Translation Register 1 (DTT1) + 0x805, // MMU Status Register(MMUSR) + 0x806, // User Root Pointer(URP) + 0x807, // Supervisor Root Pointer(SRP) + // MC68EC040 only + 0x004, // Instruction Access Control Register 0 (IACR0) + 0x005, // Instruction Access Control Register 1 (IACR1) + 0x006, // Data Access Control Register 0 (DACR1) + 0x007, // Data Access Control Register 1 (DACR1) + // 68851 only + 0xFFF // CPU Root Pointer (CRP) - There's no movec with CRP in it, this is just a guard entry +}; + // Error messages int m_unimp(WORD unused1, WORD unused2) @@ -127,7 +396,7 @@ int m_badmode(WORD unused1, WORD unused2) int m_self(WORD inst, WORD usused) { D_word(inst); - return 0; + return OK; } @@ -190,7 +459,93 @@ int m_ea(WORD inst, WORD siz) ea1gen(siz); } - return 0; + return OK; +} + + +// +// Check if lea x(an),an can be optimised to addq.w #x,an--otherwise fall back +// to m_ea. +// +int m_lea(WORD inst, WORD siz) +{ + if (optim_flags[OPT_LEA_ADDQ] + && ((am0 == ADISP) && (a0reg == a1reg) && (a0exattr & DEFINED)) + && ((a0exval > 0) && (a0exval <= 8))) + { + inst = B16(01010000, 01001000) | ((a0exval & 7) << 9) | (a0reg); + D_word(inst); + warn("lea size(An),An converted to addq #size,An"); + return OK; + } + + return m_ea(inst, siz); +} + + +int m_ea030(WORD inst, WORD siz) +{ + CHECK00; + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + { + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + } + else + { + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + if (am0 == AREG) + // We get here if we're doing 020+ addressing and an address + // register is used. For example, something like "tst a0". A bit of + // a corner case, so kludge it + a0reg = a0reg + 8; + else if (am0 == PCDISP) + //Another corner case (possibly!), so kludge ahoy + inst |= am0; // Get ea0 into instr + else if (am0 == IMMED) + inst |= am0 | a0reg; // Get ea0 into instr + else if (am0 == AM_CCR) + inst |= am1 | a1reg; + else if (am0 == AIND) + inst |= am0; + + inst |= a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + return OK; } @@ -210,7 +565,7 @@ int m_abcd(WORD inst, WORD siz) inst |= a0reg | reg_9[a1reg]; D_word(inst); - return 0; + return OK; } @@ -223,7 +578,7 @@ int m_adda(WORD inst, WORD siz) D_word(inst); ea0gen(siz); // Generate EA - return 0; + return OK; } @@ -245,7 +600,7 @@ int m_reg(WORD inst, WORD siz) inst |= a0reg; // Install first register D_word(inst); - return 0; + return OK; } @@ -257,7 +612,7 @@ int m_imm(WORD inst, WORD siz) D_word(inst); ea0gen(siz); - return 0; + return OK; } @@ -270,7 +625,7 @@ int m_imm8(WORD inst, WORD siz) D_word(inst); ea0gen(SIZB); - return 0; + return OK; } @@ -282,7 +637,7 @@ int m_shr(WORD inst, WORD siz) inst |= reg_9[a0reg] | a1reg | siz_6[siz]; D_word(inst); - return 0; + return OK; } @@ -307,7 +662,7 @@ int m_shi(WORD inst, WORD siz) D_word(inst); } - return 0; + return OK; } @@ -342,7 +697,7 @@ int m_bitop(WORD inst, WORD siz) // ea to bit-munch ea1gen(SIZB); - return 0; + return OK; } @@ -372,7 +727,7 @@ int m_dbra(WORD inst, WORD siz) D_word(0); } - return 0; + return OK; } @@ -404,7 +759,7 @@ int m_exg(WORD inst, WORD siz) inst |= m | reg_9[a0reg] | a1reg; D_word(inst); - return 0; + return OK; } @@ -413,15 +768,46 @@ int m_exg(WORD inst, WORD siz) // int m_link(WORD inst, WORD siz) { - siz = siz; + if (siz != SIZL) + { + // Is this an error condition??? + } + else + { + CHECK00; + inst &= ~((3 << 9) | (1 << 6) | (1 << 4)); + inst |= 1 << 3; + } + inst |= a0reg; D_word(inst); - ea1gen(SIZW); + ea1gen(siz); - return 0; + return OK; } +WORD extra_addressing[16]= +{ + 0, //0100 (bd,An,Xn) + 0, //0101 ([bd,An],Xn,od) + 0x180, //0102 ([bc,An,Xn],od) (111 110 110 111) + 0, //0103 (bd,PC,Xn) + 0, //0104 ([bd,PC],Xn,od) + 0, //0105 ([bc,PC,Xn],od) + 0, //0106 + 0, //0107 + 0, //0110 + 0, //0111 Nothing + 0x30, //0112 (Dn.w) + 0x30, //0113 (Dn.l) + 0, //0114 + 0, //0115 + 0, //0116 + 0 //0117 +}; + + // // Handle MOVE // MOVE @@ -434,8 +820,10 @@ int m_move(WORD inst, WORD size) int siz = (int)size; // Try to optimize to MOVEQ - if (optim_flags[OPT_MOVEL_MOVEQ] && siz == SIZL && am0 == IMMED && am1 == DREG - && (a0exattr & (TDB|DEFINED)) == DEFINED && a0exval + 0x80 < 0x100) + if (optim_flags[OPT_MOVEL_MOVEQ] + && (siz == SIZL) && (am0 == IMMED) && (am1 == DREG) + && ((a0exattr & (TDB | DEFINED)) == DEFINED) + && (a0exval + 0x80 < 0x100)) { m_moveq((WORD)0x7000, (WORD)0); @@ -444,18 +832,54 @@ int m_move(WORD inst, WORD size) } else { - inst |= siz_12[siz] | am_6[am1] | reg_9[a1reg] | am0 | a0reg; + if ((am0 < ABASE) && (am1 < ABASE)) //68000 modes + { + inst |= siz_12[siz] | am_6[am1] | reg_9[a1reg] | am0 | a0reg; - D_word(inst); + D_word(inst); + + if (am0 >= ADISP) + ea0gen((WORD)siz); + + if (am1 >= ADISP) + ea1gen((WORD)siz | 0x8000); // Tell ea1gen we're move ea,ea + } + else //68020+ modes + { + inst |= siz_12[siz] | reg_9[a1reg] | extra_addressing[am0 - ABASE]; + + D_word(inst); - if (am0 >= ADISP) - ea0gen((WORD)siz); + if (am0 >= ADISP) + ea0gen((WORD)siz); - if (am1 >= ADISP) - ea1gen((WORD)siz | 0x8000); // Tell ea1gen we're move ea,ea + if (am1 >= ADISP) + ea1gen((WORD)siz); + } } - return 0; + return OK; +} + +// +// Handle MOVE +// MOVE +// +int m_move30(WORD inst, WORD size) +{ + // Cast the passed in value to an int + int siz = (int)size; + inst |= siz_12[siz] | reg_9[a1reg & 7] | a0reg | extra_addressing[am0 - ABASE]; + + D_word(inst); + + if (am0 >= ADISP) + ea0gen((WORD)siz); + + if (am1 >= ADISP) + ea1gen((WORD)siz); + + return OK; } @@ -473,7 +897,7 @@ int m_usp(WORD inst, WORD siz) D_word(inst); - return 0; + return OK; } @@ -496,16 +920,18 @@ int m_moveq(WORD inst, WORD siz) inst |= reg_9[a1reg] | (a0exval & 0xFF); D_word(inst); - return 0; + return OK; } -int movep = 0; // Global flag to indicate we're generating a movep instruction + // // movep Dn, disp(An) -- movep disp(An), Dn // int m_movep(WORD inst, WORD siz) { - movep = 1; // Tell ea0gen to lay off the 0(a0) optimisations on this one + // Tell ea0gen to lay off the 0(a0) optimisations on this one + movep = 1; + if (siz == SIZL) inst |= 0x0040; @@ -555,30 +981,32 @@ int m_br(WORD inst, WORD siz) // Optimize branch instr. size if (siz == SIZN) { - if (optim_flags[OPT_BSR_BCC_S] && v != 0 && v + 0x80 < 0x100) + if (optim_flags[OPT_BSR_BCC_S] && (v != 0) && ((v + 0x80) < 0x100)) { // Fits in .B inst |= v & 0xFF; D_word(inst); + if (sbra_flag) warn("Bcc.w/BSR.w converted to .s"); - return 0; + + return OK; } else { // Fits in .W - if (v + 0x8000 > 0x10000) + if ((v + 0x8000) > 0x10000) return error(range_error); D_word(inst); D_word(v); - return 0; + return OK; } } - if (siz == SIZB) + if (siz == SIZB || siz == SIZS) { - if (v + 0x80 >= 0x100) + if ((v + 0x80) >= 0x100) return error(range_error); inst |= v & 0xFF; @@ -586,24 +1014,24 @@ int m_br(WORD inst, WORD siz) } else { - if (v + 0x8000 >= 0x10000) + if ((v + 0x8000) >= 0x10000) return error(range_error); D_word(inst); D_word(v); } - return 0; + return OK; } else if (siz == SIZN) siz = SIZW; - if (siz == SIZB) + if (siz == SIZB || siz == SIZS) { // .B AddFixup(FU_BBRA | FU_PCREL | FU_SEXT, sloc, a0expr); D_word(inst); - return 0; + return OK; } else { @@ -613,7 +1041,7 @@ int m_br(WORD inst, WORD siz) D_word(0); } - return 0; + return OK; } @@ -626,7 +1054,7 @@ int m_addq(WORD inst, WORD siz) if (a0exattr & DEFINED) { - if (a0exval > 8 || a0exval == 0) // Range in 1..8 + if ((a0exval > 8) || (a0exval == 0)) // Range in 1..8 return error(range_error); inst |= (a0exval & 7) << 9; @@ -640,7 +1068,7 @@ int m_addq(WORD inst, WORD siz) ea1gen(siz); - return 0; + return OK; } @@ -665,7 +1093,7 @@ int m_trap(WORD inst, WORD siz) else return error(undef_error); - return 0; + return OK; } @@ -691,7 +1119,7 @@ int m_movem(WORD inst, WORD siz) tok++; if (abs_expr(&eval) != OK) - return 0; + return OK; if (eval >= 0x10000L) return error(range_error); @@ -700,18 +1128,18 @@ int m_movem(WORD inst, WORD siz) goto immed1; } - if (*tok >= KW_D0 && *tok <= KW_A7) + if ((*tok >= KW_D0) && (*tok <= KW_A7)) { // , ea if (reglist(&rmask) < 0) - return 0; + return OK; immed1: if (*tok++ != ',') return error("missing comma"); if (amode(0) < 0) - return 0; + return OK; inst |= am0 | a0reg; @@ -732,7 +1160,7 @@ immed1: { // ea, if (amode(0) < 0) - return 0; + return OK; inst |= 0x0400 | am0 | a0reg; @@ -748,7 +1176,7 @@ immed1: tok++; if (abs_expr(&eval) != OK) - return 0; + return OK; if (eval >= 0x10000) return error(range_error); @@ -756,7 +1184,7 @@ immed1: rmask = (WORD)eval; } else if (reglist(&rmask) < 0) - return 0; + return OK; if (!(amsktab[am0] & (C_CTRL | M_APOSTINC))) return error("invalid addressing mode"); @@ -766,7 +1194,7 @@ immed1: D_word(rmask); ea0gen(siz); - return 0; + return OK; } @@ -778,6 +1206,2446 @@ int m_clra(WORD inst, WORD siz) inst |= a0reg | reg_9[a0reg] | lwsiz_8[siz]; D_word(inst); - return 0; + return OK; +} + + +//////////////////////////////////////// +// +// 68020/30/40 instructions +// +//////////////////////////////////////// + +// +// Bcc.l -- BSR.l +// +int m_br30(WORD inst, WORD siz) +{ + if (a0exattr & DEFINED) + { + if ((a0exattr & TDB) != cursect) + return error(rel_error); + + VALUE v = a0exval - (sloc + 2); + D_word(inst); + D_long(v); + + return OK; + } + else + { + // .L + AddFixup(FU_LONG | FU_PCREL | FU_SEXT, sloc, a0expr); + D_word(inst); + return OK; + } +} + + +// +// bfchg, bfclr, bfexts, bfextu, bfffo, bfins, bfset +// (68020, 68030, 68040) +// +int m_bfop(WORD inst, WORD siz) +{ + //TODO: is this needed or can we put that in the mask in 68ktab??? + if (am0 == AREG || am0== APOSTINC || am0 == APREDEC || am0 == IMMED|| am0 == ABASE || am0 == MEMPOST || am0 == MEMPRE || am0 == PCBASE || am0 == PCMPOST || am0 == PCMPRE) + return m_badmode(inst, siz); + + //First instruction word - just the opcode and first EA + //Note: both am1 is ORed because solely of bfins - maybe it's a good idea to make a dedicated function for it? + if (am1 == AM_NONE) + am1 = 0; + + D_word((inst|am0|a0reg|am1|a1reg)); + ea0gen(siz); // Generate EA + + //Second instruction word - Dest register (if exists), Do, Offset, Dw, Width + inst = bfparam1 | bfparam2; + + if (am1 == DREG) + inst |= a1reg << 12; + + if (am0 == DREG) + inst |= a0reg << 12; + + D_word(inst); + + return OK; +} + + +// +// bkpt (68EC000, 68010, 68020, 68030, 68040, CPU32) +// +int m_bkpt(WORD inst, WORD siz) +{ + CHECK00; + + if (a0exattr & DEFINED) + { + if (a0exattr & TDB) + return error(abs_error); + + if (a0exval >= 8) + return error(range_error); + + inst |= a0exval; + D_word(inst); + } + else + return error(undef_error); + + return OK; +} + + +// +// callm (68020) +// +int m_callm(WORD inst, WORD siz) +{ + CHECKNO20; + + inst |= am1; + D_word(inst); + + if (a0exattr & DEFINED) + { + if (a0exattr & TDB) + return error(abs_error); + + if (a0exval > 255) + return error(range_error); + + inst = a0exval; + D_word(inst); + } + else + return error(undef_error); + + ea1gen(siz); + + return OK; + +} + + +// +// cas (68020, 68030, 68040) +// +int m_cas(WORD inst, WORD siz) +{ + WORD inst2; + LONG amsk; + int modes; + + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + switch (siz) + { + case SIZB: + inst |= 1 << 9; + break; + case SIZW: + case SIZN: + inst |= 2 << 9; + break; + case SIZL: + inst |= 3 << 9; + break; + default: + return error("bad size suffix"); + break; + } + + // Dc + if ((*tok < KW_D0) && (*tok > KW_D7)) + return error("CAS accepts only data registers"); + + inst2 = (*tok++) & 7; + + if (*tok++ != ',') + return error("missing comma"); + + // Du + if ((*tok < KW_D0) && (*tok > KW_D7)) + return error("CAS accepts only data registers"); + + inst2 |= ((*tok++) & 7) << 6; + + if (*tok++ != ',') + return error("missing comma"); + + // ea + if ((modes = amode(1)) < 0) + return OK; + + if (modes > 1) + return error("too many ea fields"); + + if (*tok!=EOL) + return error("extra (unexpected) text found"); + + // Reject invalud ea modes + amsk = amsktab[am0]; + + if (amsk & (M_AIND | M_APOSTINC | M_APREDEC | M_ADISP | M_AINDEXED | M_ABSW | M_ABSL | M_ABASE | M_MEMPOST | M_MEMPRE) == 0) + return error("unsupported addressing mode"); + + inst |= am0 | a0reg; + D_word(inst); + D_word(inst2); + ea0gen(siz); + + return OK; +} + + +// +// cas2 (68020, 68030, 68040) +// +int m_cas2(WORD inst, WORD siz) +{ + WORD inst2, inst3; + LONG amsk; + + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + switch (siz) + { + case SIZB: + inst |= 1 << 9; + break; + case SIZW: + case SIZN: + inst |= 2 << 9; + break; + case SIZL: + inst |= 3 << 9; + break; + default: + return error("bad size suffix"); + break; + } + + // Dc1 + if ((*tok < KW_D0) && (*tok > KW_D7)) + return error("CAS2 accepts only data registers for Dx1:Dx2 pairs"); + + inst2 = (*tok++) & 7; + + if (*tok++ != ':') + return error("missing colon"); + + // Dc2 + if ((*tok < KW_D0) && (*tok > KW_D7)) + return error("CAS2 accepts only data registers for Dx1:Dx2 pairs"); + + inst3 = (*tok++) & 7; + + if (*tok++ != ',') + return error("missing comma"); + + // Du1 + if ((*tok < KW_D0) && (*tok > KW_D7)) + return error("CAS2 accepts only data registers for Dx1:Dx2 pairs"); + + inst2 |= ((*tok++) & 7) << 6; + + if (*tok++ != ':') + return error("missing colon"); + + // Du2 + if ((*tok < KW_D0) && (*tok > KW_D7)) + return error("CAS2 accepts only data registers for Dx1:Dx2 pairs"); + + inst3 |= ((*tok++) & 7) << 6; + + if (*tok++ != ',') + return error("missing comma"); + + // Rn1 + if (*tok++ != '(') + return error("missing ("); + if ((*tok >= KW_D0) && (*tok <= KW_D7)) + inst2 |= (((*tok++) & 7) << 12) | (0 << 15); + else if ((*tok >= KW_A0) && (*tok <= KW_A7)) + inst2 |= (((*tok++) & 7) << 12) | (1 << 15); + else + return error("CAS accepts either data or address registers for Rn1:Rn2 pair"); + + if (*tok++ != ')') + return error("missing ("); + + if (*tok++ != ':') + return error("missing colon"); + + // Rn2 + if (*tok++ != '(') + return error("missing ("); + if ((*tok >= KW_D0) && (*tok <= KW_D7)) + inst3 |= (((*tok++) & 7) << 12) | (0 << 15); + else if ((*tok >= KW_A0) && (*tok <= KW_A7)) + inst3 |= (((*tok++) & 7) << 12) | (1 << 15); + else + return error("CAS accepts either data or address registers for Rn1:Rn2 pair"); + + if (*tok++ != ')') + return error("missing ("); + + if (*tok != EOL) + return error("extra (unexpected) text found"); + + D_word(inst); + D_word(inst2); + D_word(inst3); + + return OK; +} + + +// +// cmp2 (68020, 68030, 68040, CPU32) +// +int m_cmp2(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + switch (siz & 0x000F) + { + case SIZW: + case SIZN: + inst |= 1 << 9; + break; + case SIZL: + inst |= 2 << 9; + break; + default: + // SIZB + break; + } + + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + else + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + inst |= am0 | a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + // If we're called from chk2 then bit 11 of size will be set. This is just + // a dumb mechanism to pass this, required by the extension word. (You might + // have noticed the siz & 15 thing above!) + inst = (a1reg << 12) | (siz & (1 << 11)); + + if (am1 == AREG) + inst |= 1 << 15; + + D_word(inst); + + return OK; +} + + +// +// chk2 (68020, 68030, 68040, CPU32) +// +int m_chk2(WORD inst, WORD siz) +{ + return m_cmp2(inst, siz | (1 << 11)); +} + + +// +// cpbcc(68020, 68030) +// +int m_cpbr(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030)) == 0) + return error(unsupport); + + if (a0exattr & DEFINED) + { + if ((a0exattr & TDB) != cursect) + return error(rel_error); + + VALUE v = a0exval - (sloc + 2); + + // Optimize branch instr. size + if (siz == SIZL) + { + if ((v != 0) && ((v + 0x8000) < 0x10000)) + { + inst |= (1 << 6); + D_word(inst); + WARNING(check what s "optional coprocessor-defined extension words!") + D_long(v); + return OK; + } + } + else // SIZW/SIZN + { + if ((v + 0x8000) >= 0x10000) + return error(range_error); + + D_word(inst); + WARNING(check what s "optional coprocessor-defined extension words!") + D_word(v); + } + + return OK; + } + else if (siz == SIZN) + siz = SIZW; + + if (siz == SIZL) + { + // .L + D_word(inst); + AddFixup(FU_LONG | FU_PCREL | FU_SEXT, sloc, a0expr); + D_long(0); + return OK; + } + else + { + // .W + D_word(inst); + AddFixup(FU_WORD | FU_PCREL | FU_SEXT, sloc, a0expr); + D_word(0); + } + + return OK; +} + + +// +// cpdbcc(68020, 68030) +// +int m_cpdbr(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030)) == 0) + return error(unsupport); + + return error("Not implemented yet."); + + //return OK; +} + + +// +// divs.l +// +int m_divs(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + else + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + inst |= am0 | a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + inst = a1reg + (a2reg << 12) + (1 << 11); + D_word(inst); + + return OK; +} + + +// +// muls.l +// +int m_muls(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + else + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + inst |= am0 | a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + inst = a1reg + (a2reg << 12) + (1 << 11); + inst |= mulmode; // add size bit + D_word(inst); + + return OK; +} + + +// +// divu.l +// +int m_divu(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + //WARNING("divu.l d0,d1 is actually divul.l d0,d1:d1!!!") + + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + else + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + inst |= am0 | a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + inst = a1reg + (a2reg << 12); + D_word(inst); + + return OK; +} + + +// +// mulu.l +// +int m_mulu(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + else + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + inst |= am0 | a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + inst = a1reg + (a2reg << 12); + inst |= mulmode; // add size bit + D_word(inst); + + return OK; +} + + +// +// divsl.l +// +int m_divsl(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + else + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + inst |= am0 | a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + inst = a1reg + (a2reg << 12) + (1 << 11) + (1 << 10); + D_word(inst); + + return OK; +} + +// +// divul.l +// +int m_divul(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + else + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + inst |= am0 | a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + inst = a1reg + (a2reg << 12) + (1 << 10); + D_word(inst); + + return OK; +} + + +// +// move16 (ax)+,(ay)+ +// +int m_move16a(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68040 | CPU_68060)) == 0) + return error(unsupport); + + inst |= a0reg; + D_word(inst); + inst = (1 << 15) + (a1reg << 12); + D_word(inst); + + return OK; +} + + +// +// move16 with absolute address +// +int m_move16b(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68040 | CPU_68060)) == 0) + return error(unsupport); + + int v; + inst |= a1reg; + D_word(inst); + + if (am0 == APOSTINC) + { + if (am1 == AIND) + return error("Wasn't this suppose to call m_move16a???"); + else + { + //move16 (ax)+,(xxx).L + inst |= 0 << 3; + v = a1exval; + } + } + else if (am0 == ABSL) + { + if (am1 == AIND) + { + //move16 (xxx).L,(ax)+ + inst |= 1 << 3; + v = a0exval; + } + else //APOSTINC + { + //move16 (xxx).L,(ax) + inst |= 3 << 3; + v = a0exval; + } + } + else if (am0 == AIND) + { + //move16 (ax),(xxx).L + inst |= 2 << 3; + v = a1exval; + } + + D_word(inst); + D_long(v); + + return OK; +} + + +// +// pack/unpack +// +int m_pack(WORD inst, WORD siz) +{ + if ((activecpu & (CPU_68020 | CPU_68030 | CPU_68040)) == 0) + return error(unsupport); + + WARNING(Parsing stuff by hand here might be better) + +#if 0 + if ((am0 == DREG) && (am1 == DREG)) + { + inst |= (1 << 3) + (a0reg << 9) + (a1reg); + } + else if ((am0 == APREDEC) && (am1 == APREDEC)) + { + inst |= (a0reg << 9) + (a1reg); + } + else + return error("Only allowed combinations for pack/unpack are -(ax),-(ay) and dx,dy."); + + D_word(inst); +#endif + + return OK; +} + + +// +// rtm Rn +// +int m_rtm(WORD inst, WORD siz) +{ + CHECKNO20; + + if (am0 == DREG) + { + inst |= a0reg; + } + else if (am0 == AREG) + { + inst |= (1 << 3) + a0reg; + } + else + return error("rtm only allows data or address registers."); + + D_word(inst); + + return OK; +} + + +// +// rtd #n +// +int m_rtd(WORD inst, WORD siz) +{ + CHECK00; + + if (a0exattr & DEFINED) + { + if (a0exattr & TDB) + return error(abs_error); + + if ((a0exval + 0x8000) <= 0x7FFF) + return error(range_error); + + D_word(inst); + D_word(a0exval); + } + else + return error(undef_error); + + return OK; +} + + +// +// trapcc +// +int m_trapcc(WORD inst, WORD siz) +{ + CHECK00; + + if (am0 == AM_NONE) + { + D_word(inst); + } + else if (am0 == IMMED) + { + if (siz == SIZW) + { + if (a0exval < 0x10000) + { + inst |= 2; + D_word(inst); + D_word(a0exval); + } + else + return error("Immediate value too big"); + } + else //DOTL + { + inst |= 3; + D_word(inst); + D_long(a0exval); + } + } + else + return error("Invalid parameter for trapcc"); + + return OK; +} + + +// +// cinv (68040) +// +int m_cinv(WORD inst, WORD siz) +{ + CHECKNO40; + WARNING("cinvl ,(an) / cinvp ,(an) / cinva should work!") + + if (am0 == AM_NONE) + inst |= (0 << 6) | (a1reg); + else if (am0 == KW_IC40) + inst |= (2 << 6) | (a1reg); + else if (am0 == KW_DC40) + inst |= (1 << 6) | (a1reg); + else if (am0 == KW_BC40) + inst |= (3 << 6) | (a1reg); + + D_word(inst); + return OK; +} + + +// +// cpRESTORE (68020, 68030) +// +int m_cprest(WORD inst, WORD siz) +{ + if (activecpu & !(CPU_68020 | CPU_68030)) + return error(unsupport); + + inst |= am0 | a0reg; + D_word(inst); + ea0gen(siz); + + return OK; +} + + +// +// movec (68010, 68020, 68030, 68040, CPU32) +// +int m_movec(WORD inst, WORD siz) +{ + CHECK00; + + if (am0 == DREG || am0 == AREG) + { + // movec Rn,Rc + inst |= 1; + D_word(inst); + + if (am0 == DREG) + { + inst = (0 << 15) + (a0reg << 12) + CREGlut[a1reg]; + D_word(inst); + } + else + { + inst = (1 << 15) + (a0reg << 12) + CREGlut[a1reg]; + D_word(inst); + } + } + else + { + // movec Rc,Rn + D_word(inst); + + if (am1 == DREG) + { + inst = (0 << 15) + (a1reg << 12) + CREGlut[a0reg]; + D_word(inst); + } + else + { + inst = (1 << 15) + (a1reg << 12) + CREGlut[a0reg]; + D_word(inst); + } + } + + return OK; +} + + +// +// moves (68010, 68020, 68030, 68040, CPU32) +// +int m_moves(WORD inst, WORD siz) +{ + if (activecpu & !(CPU_68020 | CPU_68030 | CPU_68040)) + return error(unsupport); + + if (siz == SIZB) + { + inst |= 0 << 6; + } + else if (siz == SIZL) + { + inst |= 2 << 6; + } + else // SIZW/SIZN + { + inst |= 1 << 6; + } + + if (am0 == DREG) + { + inst |= am1 | a1reg; + D_word(inst); + inst = (a0reg << 12) | (1 << 11) | (0 << 15); + D_word(inst); + } + else if (am0 == AREG) + { + inst |= am1 | a1reg; + D_word(inst); + inst = (a0reg << 12) | (1 << 11) | (1 << 15); + D_word(inst); + } + else + { + if (am1 == DREG) + { + inst |= am0 | a0reg; + D_word(inst); + inst = (a1reg << 12) | (0 << 11) | (0 << 15); + D_word(inst); + } + else + { + inst |= am0 | a0reg; + D_word(inst); + inst = (a1reg << 12) | (0 << 11) | (1 << 15); + D_word(inst); + } + } + + return OK; +} + + +// +// PBcc (MC68851) +// +int m_pbcc(WORD inst, WORD siz) +{ + CHECKNO20; + return error("Not implemented yet."); +} + + +// +// pflusha (68030) +// +int m_pflusha(WORD inst, WORD siz) +{ + CHECKNO30; + + D_word(inst); + inst = (1 << 13) | (1 << 10) | (0 << 5) | 0; + D_word(inst); + return OK; +} + + +// +// pflush (68030, 68040, 68060) +// +int m_pflush(WORD inst, WORD siz) +{ + if (activecpu == CPU_68030) + { + D_word(inst); + D_word((1 << 13) | (1 << 10) | (0 << 5) | 0); + } + else if (activecpu == CPU_68040 || activecpu == CPU_68060) + { + D_word(0xf918); + } + else + return error(unsupport); + + return OK; +} + + +// +// pflushr (68551) +// +int m_pflushr(WORD inst, WORD siz) +{ + CHECKNO20; + + WORD flg = inst; // Save flag bits + inst &= ~0x3F; // Clobber flag bits in instr + + // Install "standard" instr size bits + if (flg & 4) + inst |= siz_6[siz]; + + if (flg & 16) + { + // OR-in register number + if (flg & 8) + inst |= reg_9[a1reg]; // ea1reg in bits 9..11 + else + inst |= reg_9[a0reg]; // ea0reg in bits 9..11 + } + + if (flg & 1) + { + // Use am1 + inst |= am1 | a1reg; // Get ea1 into instr + D_word(inst); // Deposit instr + + // Generate ea0 if requested + if (flg & 2) + ea0gen(siz); + + ea1gen(siz); // Generate ea1 + } + else + { + // Use am0 + inst |= am0 | a0reg; // Get ea0 into instr + D_word(inst); // Deposit instr + ea0gen(siz); // Generate ea0 + + // Generate ea1 if requested + if (flg & 2) + ea1gen(siz); + } + + D_word(B16(10100000, 00000000)); +} + + +// +// ploadr, ploadw (68030) +// +int m_pload(WORD inst, WORD siz) +{ + CHECKNO30; + return error("Not implemented yet."); +} + + +// +// pmove (68030) +// +int m_pmove(WORD inst, WORD siz) +{ + int inst2,reg; + + CHECKNO30; + + inst2 = inst & (1 << 8); //Copy the flush bit over to inst2 in case we're called from m_pmovefd + inst &= ~(1 << 8); //And mask it out + + if (am0 == CREG) + { + reg = a0reg; + inst2 |= (1 << 9); + } + else if (am1 == CREG) + { + reg = a1reg; + inst2 |= 0; + } + else + return error("pmove sez: Wut?"); + + if (((reg == (KW_URP - KW_SFC)) || (reg == (KW_SRP - KW_SFC))) + && ((siz != SIZD) && (siz != SIZN))) + return error(siz_error); + + if (((reg == (KW_TC - KW_SFC)) || (reg == (KW_TT0 - KW_SFC)) || (reg == (KW_TT1 - KW_SFC))) + && ((siz != SIZL) && (siz != SIZN))) + return error(siz_error); + + if ((reg == (KW_MMUSR - KW_SFC)) && ((siz != SIZW) && (siz != SIZN))) + return error(siz_error); + + WARNING(Not all addressing modes are legal here!) + + if (am0 == CREG) + { + inst |= am1; + D_word(inst); + ea1gen(siz); + } + else if (am1 == CREG) + { + inst |= am0; + D_word(inst); + ea0gen(siz); + } + + switch (reg) + { + case (KW_URP - KW_SFC): + inst2 |= (3 << 10) + (2 << 13); break; + case (KW_SRP - KW_SFC): + inst2 |= (2 << 10) + (2 << 13); break; + case (KW_TC - KW_SFC): + inst2 |= (0 << 10) + (2 << 13); break; + case (KW_TT0 - KW_SFC): + inst2 |= (2 << 10) + (0 << 13); break; + case (KW_TT1 - KW_SFC): + inst2 |= (3 << 10) + (0 << 13); break; + case (KW_MMUSR - KW_SFC): + inst2 |= (3 << 10) + (3 << 13); break; + case (KW_CRP - KW_SFC) : //68851 only + inst2 |= (3 << 10) + (2 << 13); break; + } + + D_word(inst2); + + return OK; +} + + +// +// pmovefd (68030) +// +int m_pmovefd(WORD inst, WORD siz) +{ + CHECKNO30; + + return m_pmove(inst | (1 << 8), siz); +} + + +// +// ptrapcc (68851) +// +int m_ptrapbs(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00000000)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00000000)); D_long(a0exval); } return OK; } +int m_ptrapbc(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00000001)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00000001)); D_long(a0exval); } return OK; } +int m_ptrapls(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00000010)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00000010)); D_long(a0exval); } return OK; } +int m_ptraplc(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00000011)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00000011)); D_long(a0exval); } return OK; } +int m_ptrapss(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00000100)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00000100)); D_long(a0exval); } return OK; } +int m_ptrapsc(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00000101)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00000101)); D_long(a0exval); } return OK; } +int m_ptrapas(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00000110)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00000110)); D_long(a0exval); } return OK; } +int m_ptrapac(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00000111)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00000111)); D_long(a0exval); } return OK; } +int m_ptrapws(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00001000)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00001000)); D_long(a0exval); } return OK; } +int m_ptrapwc(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00001001)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00001001)); D_long(a0exval); } return OK; } +int m_ptrapis(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00001010)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00001010)); D_long(a0exval); } return OK; } +int m_ptrapic(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00001011)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00001011)); D_long(a0exval); } return OK; } +int m_ptrapgc(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00001100)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00001100)); D_long(a0exval); } return OK; } +int m_ptrapgs(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00001101)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00001101)); D_long(a0exval); } return OK; } +int m_ptrapcs(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00001110)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00001110)); D_long(a0exval); } return OK; } +int m_ptrapcc(WORD inst, WORD siz) { CHECKNO20; if (siz == SIZW) { D_word(inst); D_word(B8(00001111)); D_word(a0exval); } else { inst |= 3; D_word(inst); D_word(B8(00001111)); D_long(a0exval); } return OK; } +int m_ptrapbsn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00000000)); return OK; } +int m_ptrapbcn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00000001)); return OK; } +int m_ptraplsn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00000010)); return OK; } +int m_ptraplcn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00000011)); return OK; } +int m_ptrapssn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00000100)); return OK; } +int m_ptrapscn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00000101)); return OK; } +int m_ptrapasn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00000110)); return OK; } +int m_ptrapacn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00000111)); return OK; } +int m_ptrapwsn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00001000)); return OK; } +int m_ptrapwcn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00001001)); return OK; } +int m_ptrapisn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00001010)); return OK; } +int m_ptrapicn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00001011)); return OK; } +int m_ptrapgsn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00001100)); return OK; } +int m_ptrapgcn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00001101)); return OK; } +int m_ptrapcsn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00001110)); return OK; } +int m_ptrapccn(WORD inst, WORD siz) { CHECKNO20; D_word(inst); D_word(B8(00001111)); return OK; } + + +// +// ptestr, ptestw (68030) +// +int m_ptest(WORD inst, WORD siz) +{ + CHECKNO30; + + if (activecpu == CPU_68030) + return error("Not implemented yet."); + else if (activecpu == CPU_68040) + return error("Not implemented yet."); + + return ERROR; +} + + +#define FPU_NOWARN 0 +#define FPU_P_EMUL 1 +#define FPU_P2_EMU 2 +#define FPU_FPSP 4 + + +// +// Generate a FPU opcode +// +static inline int gen_fpu(WORD inst, WORD siz, WORD opmode, WORD emul) +{ + if (am0 < AM_NONE) // Check first operand for ea or fp - is this right? + { + inst |= (1 << 9); // Bolt on FPU id + inst |= am0; + + if (am0 == DREG) + inst |= a0reg; + + D_word(inst); + inst = 1 << 14; // R/M field (we have ea so have to set this to 1) + + switch (siz) + { + case SIZB: inst |= (6 << 10); break; + case SIZW: inst |= (4 << 10); break; + case SIZL: inst |= (0 << 10); break; + case SIZN: + case SIZS: inst |= (1 << 10); break; + case SIZD: inst |= (5 << 10); break; + case SIZX: inst |= (2 << 10); break; + case SIZP: + inst |= (3 << 10); + + if (emul) + warn("This encoding will cause an unimplemented data type exception in the MC68040 to allow emulation in software."); + + break; + default: + return error("Something bad happened, possibly, in gen_fpu."); + break; + } + + inst |= (a1reg << 7); + inst |= opmode; + D_word(inst); + ea0gen(siz); + } + else + { + inst |= (1 << 9); //Bolt on FPU id + D_word(inst); + inst = 0; + inst = a0reg << 10; + inst |= (a1reg << 7); + inst |= opmode; + D_word(inst); + } + + if ((emul & FPU_FPSP) && (activefpu == FPU_68040)) + warn("Instruction is emulated in 68040"); + + return OK; +} + + +// +// fabs, fsabs, fdabs (6888X, 68040) +// +int m_fabs(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00011000), FPU_P_EMUL); +} + + +int m_fsabs(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01011000), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +int m_fdabs(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01011100), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +// +// facos (6888X, 68040FPSP) +// +int m_facos(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00011100), FPU_FPSP); +} + + +// +// fadd (6888X, 68040FPSP) +// +int m_fadd(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00100010), FPU_P_EMUL); +} + + +int m_fsadd(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01100010), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +int m_fdadd(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01100110), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +// +// fasin (6888X, 68040FPSP)f +// +int m_fasin(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00001100), FPU_FPSP); +} + + +// +// fatan (6888X, 68040FPSP) +// +int m_fatan(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00001010), FPU_FPSP); +} + + +// +// fatanh (6888X, 68040FPSP) +// +int m_fatanh(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00001101), FPU_FPSP); +} + + +// +// fcmp (6888X, 68040) +// +int m_fcmp(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00111000), FPU_P_EMUL); +} + + +// +// fcos (6888X, 68040FPSP) +// +int m_fcos(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00011101), FPU_FPSP); +} + + +// +// fcosh (6888X, 68040FPSP) +// +int m_fcosh(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00011001), FPU_FPSP); +} + + +// +// fdbcc (6888X, 68040) +// +int m_fdbcc(WORD inst, WORD siz) +{ + WORD opcode = inst & 0x3F; //Grab conditional bitfield + + inst &= ~0x3F; + inst |= 1 << 3; + + siz = siz; + inst |= a0reg; + D_word(inst); + D_word(opcode); + + if (a1exattr & DEFINED) + { + if ((a1exattr & TDB) != cursect) + return error(rel_error); + + VALUE v = a1exval - sloc; + + if ((v + 0x8000) > 0x10000) + return error(range_error); + + D_word(v); + } + else + { + AddFixup(FU_WORD | FU_PCREL | FU_ISBRA, sloc, a1expr); + D_word(0); + } + + return OK; +} + + +// +// fdiv (6888X, 68040) +// +int m_fdiv(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00100000), FPU_P_EMUL); +} + + +int m_fsdiv(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01100000), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +int m_fddiv(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01100100), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +// +// fetox (6888X, 68040FPSP) +// +int m_fetox(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00010000), FPU_FPSP); +} + + +// +// fetoxm1 (6888X, 68040FPSP) +// +int m_fetoxm1(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00001000), FPU_FPSP); +} + + +// +// fgetexp (6888X, 68040FPSP) +// +int m_fgetexp(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00011110), FPU_FPSP); +} + + +// +// fgetman (6888X, 68040FPSP) +// +int m_fgetman(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00011111), FPU_FPSP); +} + + +// +// fint (6888X, 68040FPSP) +// +int m_fint(WORD inst, WORD siz) +{ + if (am1 == AM_NONE) + // special case - fint fpx = fint fpx,fpx + a1reg = a0reg; + + return gen_fpu(inst, siz, B8(00000001), FPU_FPSP); +} + + +// +// fintrz (6888X, 68040FPSP) +// +int m_fintrz(WORD inst, WORD siz) +{ + if (am1 == AM_NONE) + // special case - fintrz fpx = fintrz fpx,fpx + a1reg = a0reg; + + return gen_fpu(inst, siz, B8(00000011), FPU_FPSP); +} + + +// +// flog10 (6888X, 68040FPSP) +// +int m_flog10(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00010101), FPU_FPSP); +} + + +// +// flog2 (6888X, 68040FPSP) +// +int m_flog2(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00010110), FPU_FPSP); +} + + +// +// flogn (6888X, 68040FPSP) +// +int m_flogn(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00010100), FPU_FPSP); +} + + +// +// flognp1 (6888X, 68040FPSP) +// +int m_flognp1(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00000110), FPU_FPSP); +} + + +// +// fmod (6888X, 68040FPSP) +// +int m_fmod(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00100001), FPU_FPSP); +} + + +// +// fmove (6888X, 68040) +// +int m_fmove(WORD inst, WORD siz) +{ + + // EA to register + if ((am0 == FREG) && (am1 < AM_USP)) + { + // EA + inst |= am1 | a1reg; + D_word(inst); + + // R/M + inst = 3 << 13; + + WARNING("K-factor logic is totally bogus - fix!") + + // Source specifier + switch (siz) + { + case SIZB: inst |= (6 << 10); break; + case SIZW: inst |= (4 << 10); break; + case SIZL: inst |= (0 << 10); break; + case SIZN: + case SIZS: inst |= (1 << 10); break; + case SIZD: inst |= (5 << 10); break; + case SIZX: inst |= (2 << 10); break; + case SIZP: inst |= (3 << 10); + if (bfparam1) + inst |= 1 << 12; + + inst |= (bfparam1 & 0x7FF) >> 2; + break; + default: + return error("Something bad happened, possibly."); + break; + } + + // Immediate {} value + if (bf0exval >= (1 << 6)) + return error("K-factor must be between 0 and 31"); + + if (!bfparam1 && (siz == SIZP)) + inst |= bf0exval; + + // Destination specifier + inst |= (a0reg << 7); + + // Opmode + inst |= 0; + + D_word(inst); + ea1gen(siz); + } + else if ((am0 < AM_USP) && (am1 == FREG)) + { + // EA + inst |= am0 | a0reg; + D_word(inst); + + // R/M + inst = 1 << 14; + + // Source specifier + switch (siz) + { + case SIZB: inst |= (6 << 10); break; + case SIZW: inst |= (4 << 10); break; + case SIZL: inst |= (0 << 10); break; + case SIZN: + case SIZS: inst |= (1 << 10); break; + case SIZD: inst |= (5 << 10); break; + case SIZX: inst |= (2 << 10); break; + case SIZP: inst |= (3 << 10); break; + default: + return error("Something bad happened, possibly."); + break; + } + + // Destination specifier + inst |= (a1reg << 7); + + // Opmode + inst |= 0; + + D_word(inst); + ea0gen(siz); + } + else if ((am0 == FREG) && (am1 == FREG)) + { + // EA + D_word(inst); + + // R/M + inst = 0 << 14; + + // Source specifier + if (siz != SIZX) + return error("Invalid size"); + + // Source register + inst |= (a0reg << 10); + + // Destination register + inst |= (a1reg << 7); + + D_word(inst); + } + + return OK; +} + + +// +// fmove (6888X, 68040) +// +int m_fmovescr(WORD inst, WORD siz) +{ + // Move Floating-Point System Control Register (FPCR) + // ea + // dr + // Register select + if ((am0 == FPSCR) && (am1 < AM_USP)) + { + inst |= am1 | a1reg; + D_word(inst); + inst = (1 << 13) + (1 << 15); + inst |= a0reg; + D_word(inst); + ea1gen(siz); + return OK; + } + else if ((am1 == FPSCR) && (am0 < AM_USP)) + { + inst |= am0 | a0reg; + D_word(inst); + inst = (0 << 13) + (1 << 15); + inst |= a1reg; + D_word(inst); + ea0gen(siz); + return OK; + } + else + return error("m_fmovescr says: wut?"); +} + + +// +// fsmove/fdmove (68040) +// +int m_fsmove(WORD inst, WORD siz) +{ + return error("Not implemented yet."); + +#if 0 + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01100100), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +#endif +} + + +int m_fdmove(WORD inst, WORD siz) +{ + return error("Not implemented yet."); + +#if 0 + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01100100), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +#endif +} + + +// +// fmovecr (6888X, 68040FPSP) +// +int m_fmovecr(WORD inst, WORD siz) +{ + D_word(inst); + inst = 0x5c00; + inst |= a1reg << 7; + inst |= a0exval; + D_word(inst); + + if (activefpu == FPU_68040) + warn("Instruction is emulated in 68040"); + + return OK; +} + + +// +// fmovem (6888X, 68040) +// +int m_fmovem(WORD inst, WORD siz) +{ + WORD regmask; + WORD datareg; + + if (siz == SIZX) + { + if ((*tok >= KW_FP0) && (*tok <= KW_FP7)) + { + // fmovem.x ,ea + if (fpu_reglist_left(®mask) < 0) + return OK; + + if (*tok++ != ',') + return error("missing comma"); + + if (amode(0) < 0) + return OK; + + inst |= am0 | a0reg; + + if (!(amsktab[am0] & (C_ALTCTRL | M_APREDEC))) + return error("invalid addressing mode"); + + D_word(inst); + inst = (1 << 15) | (1 << 14) | (1 << 13) | (0 << 11) | regmask; + D_word(inst); + ea0gen(siz); + return OK; + } + else if ((*tok >= KW_D0) && (*tok <= KW_D7)) + { + // fmovem.x Dn,ea + datareg = (*tok++ & 7) << 10; + + if (*tok++ != ',') + return error("missing comma"); + + if (amode(0) < 0) + return OK; + + inst |= am0 | a0reg; + + if (!(amsktab[am0] & (C_ALTCTRL | M_APREDEC))) + return error("invalid addressing mode"); + + D_word(inst); + inst = (1 << 15) | (1 << 14) | (1 << 13) | (1 << 11) | (datareg << 4); + D_word(inst); + ea0gen(siz); + return OK; + } + else + { + // fmovem.x ea,... + if (amode(0) < 0) + return OK; + + inst |= am0 | a0reg; + + if (*tok++ != ',') + return error("missing comma"); + + if ((*tok >= KW_FP0) && (*tok <= KW_FP7)) + { + //fmovem.x ea, + if (fpu_reglist_right(®mask) < 0) + return OK; + + D_word(inst); + inst = (1 << 15) | (1 << 14) | (0 << 13) | (2 << 11) | regmask; + D_word(inst); + ea0gen(siz); + return OK; + } + else + { + // fmovem.x ea,Dn + datareg = (*tok++ & 7) << 10; + D_word(inst); + inst = (1 << 15) | (1 << 14) | (0 << 13) | (3 << 11) | (datareg << 4); + D_word(inst); + ea0gen(siz); + return OK; + } + } + } + else if ((siz == SIZL) || (siz==SIZN)) + { + if ((*tok == KW_FPCR) || (*tok == KW_FPSR) || (*tok == KW_FPIAR)) + { + //fmovem.l ,ea + regmask = (1 << 15) | (1 << 13); +fmovem_loop_1: + if (*tok == KW_FPCR) + { + regmask |= (1 << 12); + tok++; + goto fmovem_loop_1; + } + + if (*tok == KW_FPSR) + { + regmask |= (1 << 11); + tok++; + goto fmovem_loop_1; + } + + if (*tok == KW_FPIAR) + { + regmask |= (1 << 10); + tok++; + goto fmovem_loop_1; + } + + if ((*tok == '/') || (*tok == '-')) + { + tok++; + goto fmovem_loop_1; + } + + if (*tok++ != ',') + return error("missing comma"); + + if (amode(0) < 0) + return OK; + + inst |= am0 | a0reg; + D_word(inst); + D_word(regmask); + ea0gen(siz); + } + else + { + //fmovem.l ea, + if (amode(0) < 0) + return OK; + + inst |= am0 | a0reg; + + if (*tok++ != ',') + return error("missing comma"); + + regmask = (1 << 15) | (0 << 13); + +fmovem_loop_2: + if (*tok == KW_FPCR) + { + regmask |= (1 << 12); + tok++; + goto fmovem_loop_2; + } + + if (*tok == KW_FPSR) + { + regmask |= (1 << 11); + tok++; + goto fmovem_loop_2; + } + + if (*tok == KW_FPIAR) + { + regmask |= (1 << 10); + tok++; + goto fmovem_loop_2; + } + + if ((*tok == '/') || (*tok == '-')) + { + tok++; + goto fmovem_loop_2; + } + + if (*tok!=EOL) + return error("extra (unexpected) text found"); + + inst |= am0 | a0reg; + D_word(inst); + D_word(regmask); + ea0gen(siz); + } + } + else + return error("bad size suffix"); + + return OK; +} + + +// +// fmul (6888X, 68040) +// +int m_fmul(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00100011), FPU_P_EMUL); +} + + +int m_fsmul(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01100011), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +int m_fdmul(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01100111), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +// +// fneg (6888X, 68040) +// +int m_fneg(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00011010), FPU_P_EMUL); +} + + +int m_fsneg(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01011010), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +int m_fdneg(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01011110), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +// +// fnop (6888X, 68040) +// +int m_fnop(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00000000), FPU_P_EMUL); +} + + +// +// frem (6888X, 68040FPSP) +// +int m_frem(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00100101), FPU_FPSP); +} + + +// +// fscale (6888X, 68040FPSP) +// +int m_fscale(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00100110), FPU_FPSP); +} + + +// +// FScc (6888X, 68040) +// +int m_fseq (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00000001)); return OK;} +int m_fsne (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00001110)); return OK;} +int m_fsgt (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00010010)); return OK;} +int m_fsngt (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00011101)); return OK;} +int m_fsge (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00010011)); return OK;} +int m_fsnge (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00011100)); return OK;} +int m_fslt (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00010100)); return OK;} +int m_fsnlt (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00011011)); return OK;} +int m_fsle (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00010101)); return OK;} +int m_fsnle (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00011010)); return OK;} +int m_fsgl (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00010110)); return OK;} +int m_fsngl (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00011001)); return OK;} +int m_fsgle (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00010111)); return OK;} +int m_fsngle(WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00011000)); return OK;} +int m_fsogt (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00000010)); return OK;} +int m_fsule (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00001101)); return OK;} +int m_fsoge (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00000011)); return OK;} +int m_fsult (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00001100)); return OK;} +int m_fsolt (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00000100)); return OK;} +int m_fsuge (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00001011)); return OK;} +int m_fsole (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00000101)); return OK;} +int m_fsugt (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00001010)); return OK;} +int m_fsogl (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00000110)); return OK;} +int m_fsueq (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00001001)); return OK;} +int m_fsor (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00000111)); return OK;} +int m_fsun (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00001000)); return OK;} +int m_fsf (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00000000)); return OK;} +int m_fst (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00001111)); return OK;} +int m_fssf (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00010000)); return OK;} +int m_fsst (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00011111)); return OK;} +int m_fsseq (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00010001)); return OK;} +int m_fssne (WORD inst, WORD siz) { inst|=am0|a0reg; D_word(inst); ea0gen(siz); D_word(B8(00011110)); return OK;} + + +// +// FTRAPcc (6888X, 68040) +// +int m_ftrapeq (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00000001)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00000001)); D_long(a0exval); } return OK;} +int m_ftrapne (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00001110)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00001110)); D_long(a0exval); } return OK;} +int m_ftrapgt (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00010010)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00010010)); D_long(a0exval); } return OK;} +int m_ftrapngt (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00011101)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00011101)); D_long(a0exval); } return OK;} +int m_ftrapge (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00010011)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00010011)); D_long(a0exval); } return OK;} +int m_ftrapnge (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00011100)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00011100)); D_long(a0exval); } return OK;} +int m_ftraplt (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00010100)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00010100)); D_long(a0exval); } return OK;} +int m_ftrapnlt (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00011011)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00011011)); D_long(a0exval); } return OK;} +int m_ftraple (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00010101)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00010101)); D_long(a0exval); } return OK;} +int m_ftrapnle (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00011010)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00011010)); D_long(a0exval); } return OK;} +int m_ftrapgl (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00010110)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00010110)); D_long(a0exval); } return OK;} +int m_ftrapngl (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00011001)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00011001)); D_long(a0exval); } return OK;} +int m_ftrapgle (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00010111)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00010111)); D_long(a0exval); } return OK;} +int m_ftrapngle(WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00011000)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00011000)); D_long(a0exval); } return OK;} +int m_ftrapogt (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00000010)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00000010)); D_long(a0exval); } return OK;} +int m_ftrapule (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00001101)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00001101)); D_long(a0exval); } return OK;} +int m_ftrapoge (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00000011)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00000011)); D_long(a0exval); } return OK;} +int m_ftrapult (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00001100)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00001100)); D_long(a0exval); } return OK;} +int m_ftrapolt (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00000100)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00000100)); D_long(a0exval); } return OK;} +int m_ftrapuge (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00001011)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00001011)); D_long(a0exval); } return OK;} +int m_ftrapole (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00000101)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00000101)); D_long(a0exval); } return OK;} +int m_ftrapugt (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00001010)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00001010)); D_long(a0exval); } return OK;} +int m_ftrapogl (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00000110)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00000110)); D_long(a0exval); } return OK;} +int m_ftrapueq (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00001001)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00001001)); D_long(a0exval); } return OK;} +int m_ftrapor (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00000111)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00000111)); D_long(a0exval); } return OK;} +int m_ftrapun (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00001000)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00001000)); D_long(a0exval); } return OK;} +int m_ftrapf (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00000000)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00000000)); D_long(a0exval); } return OK;} +int m_ftrapt (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00001111)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00001111)); D_long(a0exval); } return OK;} +int m_ftrapsf (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00010000)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00010000)); D_long(a0exval); } return OK;} +int m_ftrapst (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00011111)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00011111)); D_long(a0exval); } return OK;} +int m_ftrapseq (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00010001)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00010001)); D_long(a0exval); } return OK;} +int m_ftrapsne (WORD inst, WORD siz) { if (siz==SIZW) { D_word(inst); D_word(B8(00011110)); D_word(a0exval); } else { inst|=3; D_word(inst); D_word(B8(00011110)); D_long(a0exval); } return OK;} + +int m_ftrapeqn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00000001)); return OK;} +int m_ftrapnen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00001110)); return OK;} +int m_ftrapgtn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00010010)); return OK;} +int m_ftrapngtn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00011101)); return OK;} +int m_ftrapgen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00010011)); return OK;} +int m_ftrapngen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00011100)); return OK;} +int m_ftrapltn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00010100)); return OK;} +int m_ftrapnltn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00011011)); return OK;} +int m_ftraplen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00010101)); return OK;} +int m_ftrapnlen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00011010)); return OK;} +int m_ftrapgln (WORD inst, WORD siz) { D_word(inst); D_word(B8(00010110)); return OK;} +int m_ftrapngln (WORD inst, WORD siz) { D_word(inst); D_word(B8(00011001)); return OK;} +int m_ftrapglen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00010111)); return OK;} +int m_ftrapnglen(WORD inst, WORD siz) { D_word(inst); D_word(B8(00011000)); return OK;} +int m_ftrapogtn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00000010)); return OK;} +int m_ftrapulen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00001101)); return OK;} +int m_ftrapogen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00000011)); return OK;} +int m_ftrapultn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00001100)); return OK;} +int m_ftrapoltn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00000100)); return OK;} +int m_ftrapugen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00001011)); return OK;} +int m_ftrapolen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00000101)); return OK;} +int m_ftrapugtn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00001010)); return OK;} +int m_ftrapogln (WORD inst, WORD siz) { D_word(inst); D_word(B8(00000110)); return OK;} +int m_ftrapueqn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00001001)); return OK;} +int m_ftraporn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00000111)); return OK;} +int m_ftrapunn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00001000)); return OK;} +int m_ftrapfn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00000000)); return OK;} +int m_ftraptn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00001111)); return OK;} +int m_ftrapsfn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00010000)); return OK;} +int m_ftrapstn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00011111)); return OK;} +int m_ftrapseqn (WORD inst, WORD siz) { D_word(inst); D_word(B8(00010001)); return OK;} +int m_ftrapsnen (WORD inst, WORD siz) { D_word(inst); D_word(B8(00011110)); return OK;} + + +// +// fsgldiv (6888X, 68040) +// +int m_fsgldiv(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00100100), FPU_P_EMUL); +} + + +// +// fsglmul (6888X, 68040) +// +int m_fsglmul(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00100111), FPU_P_EMUL); +} + + +// +// fsin (6888X, 68040FPSP) +// +int m_fsin(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00001110), FPU_FPSP); +} + + +// +// fsincos (6888X, 68040FPSP) +// +int m_fsincos(WORD inst, WORD siz) +{ + if (gen_fpu(inst, siz, B8(00110000), FPU_FPSP) == OK) + { + chptr[-1] |= a2reg; + return OK; + } + else + return ERROR; +} + + +// +// fsin (6888X, 68040FPSP) +// +int m_fsinh(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00000010), FPU_FPSP); +} + + +// +// fsqrt (6888X, 68040) +// +int m_fsqrt(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00000100), FPU_P_EMUL); +} + + +int m_fsfsqrt(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01000001), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +int m_fdfsqrt(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01000101), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +// +// fsub (6888X, 68040) +// +int m_fsub(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00101000), FPU_P_EMUL); +} + + +int m_fsfsub(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01101000), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +int m_fdsub(WORD inst, WORD siz) +{ + if (activefpu == FPU_68040) + return gen_fpu(inst, siz, B8(01101100), FPU_P_EMUL); + else + return error("Unsupported in current FPU"); +} + + +// +// ftan (6888X, 68040FPSP) +// +int m_ftan(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00001111), FPU_FPSP); +} + + +// +// ftanh (6888X, 68040FPSP) +// +int m_ftanh(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00001001), FPU_FPSP); +} + + +// +// ftentox (6888X, 68040FPSP) +// +int m_ftentox(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00010010), FPU_FPSP); +} + + +// +// ftst (6888X, 68040) +// +int m_ftst(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00111010), FPU_P_EMUL); +} + + +// +// ftwotox (6888X, 68040FPSP) +// +int m_ftwotox(WORD inst, WORD siz) +{ + return gen_fpu(inst, siz, B8(00010001), FPU_FPSP); }