d9b7594738
base type o Add preliminary tracing support for same o trace_printf() takes both SD and CPU arguments o Add CIA to standard set of parameters for generated functions. o Pacify GCC
866 lines
30 KiB
Text
866 lines
30 KiB
Text
// The following is called when ever an illegal instruction is
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// encountered
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::internal::illegal
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engine_error (SD, CPU, cia, "illegal instruction at 0x%lx", cia.ip);
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// Signed Integer Add - add source1, source2, dest
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void::function::do_add:signed32 *rDest, signed32 Source1, signed32 Source2
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ALU_BEGIN (Source1);
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ALU_ADD (Source2);
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ALU_END (*rDest);
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/* FIXME - a signed add may cause an exception */
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31.Dest,26.Source2,21.0b101100,15.0,14.SignedImmediate::::add i
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do_add (_SD, rDest, vSource1, rSource2);
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31.Dest,26.Source2,21.0b11101100,13.0,12.0,11./,4.Source1::::add r
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do_add (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b11101100,13.0,12.1,11./::::add l
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long_immediate (LongSignedImmediate);
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do_add (_SD, rDest, LongSignedImmediate, rSource2);
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// Unsigned Integer Add - addu source1, source2, dest
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void::function::do_addu:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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*rDest = Source1 + Source2;
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31.Dest,26.Source2,21.0b101100,15.1,14.SignedImmediate::::addu i
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do_addu (_SD, rDest, vSource1, rSource2);
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31.Dest,26.Source2,21.0b11101100,13.1,12.0,11./,4.Source1::::addu r
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do_addu (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b11101100,13.1,12.1,11./::::addu l
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long_immediate (LongSignedImmediate);
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do_addu (_SD, rDest, LongSignedImmediate, rSource2);
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void::function::do_and:signed32 *rDest, signed32 Source1, signed32 Source2
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*rDest = Source1 & Source2;
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// and, and.tt
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31.Dest,26.Source2,21.0b0010001,14.SignedImmediate::::and.tt i
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do_and (_SD, rDest, vSource1, rSource2);
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31.Dest,26.Source2,21.0b110010001,12.0,11./,4.Source1::::and.tt r
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do_and (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b110010001,12.1,11./::::and.tt l
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long_immediate (LongSignedImmediate);
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do_and (_SD, rDest, LongSignedImmediate, rSource2);
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// and.ff
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31.Dest,26.Source2,21.0b0011000,14.SignedImmediate::::and.ff i
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do_and (_SD, rDest, ~vSource1, ~rSource2);
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31.Dest,26.Source2,21.0b110011000,12.0,11./,4.Source1::::and.ff r
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do_and (_SD, rDest, ~rSource1, ~rSource2);
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31.Dest,26.Source2,21.0b110011000,12.1,11./::::and.ff l
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long_immediate (LongSignedImmediate);
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do_and (_SD, rDest, ~LongSignedImmediate, ~rSource2);
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// and.ft
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31.Dest,26.Source2,21.0b0010100,14.SignedImmediate::::and.ft i
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do_and (_SD, rDest, ~vSource1, rSource2);
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31.Dest,26.Source2,21.0b110010100,12.0,11./,4.Source1::::and.ft r
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do_and (_SD, rDest, ~rSource1, rSource2);
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31.Dest,26.Source2,21.0b110010100,12.1,11./::::and.ft l
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long_immediate (LongSignedImmediate);
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do_and (_SD, rDest, ~LongSignedImmediate, rSource2);
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// and.tf
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31.Dest,26.Source2,21.0b0010010,14.SignedImmediate::::and.tf i
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do_and (_SD, rDest, vSource1, ~rSource2);
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31.Dest,26.Source2,21.0b110010010,12.0,11./,4.Source1::::and.tf r
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do_and (_SD, rDest, rSource1, ~rSource2);
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31.Dest,26.Source2,21.0b110010010,12.1,11./::::and.tf l
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long_immediate (LongSignedImmediate);
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do_and (_SD, rDest, LongSignedImmediate, ~rSource2);
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// bbo.[a]
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instruction_address::function::do_bbo:instruction_address nia, int bitnum, unsigned32 source, int annul, unsigned32 offset
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if (MASKED32 (source, bitnum, bitnum))
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{
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if (annul)
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nia.ip = -1;
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nia.dp = cia.ip + 4 * offset;
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}
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return nia;
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31.BITNUM,26.Source,21.0b100101,15.A,14.SignedOffset::::bbo i
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nia = do_bbo (_SD, nia, BITNUM, rSource, A, vSignedOffset);
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31.BITNUM,26.Source,21.0b11100101,13.A,12.0,11./,4.IndOff::::bbo r
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nia = do_bbo (_SD, nia, BITNUM, rSource, A, rIndOff);
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31.BITNUM,26.Source,21.0b11100101,13.A,12.1,11./::::bbo l
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long_immediate (LongSignedImmediate);
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nia = do_bbo (_SD, nia, BITNUM, rSource, A, LongSignedImmediate);
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// bbz[.a]
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instruction_address::function::do_bbz:instruction_address nia, int bitnum, unsigned32 source, int annul, unsigned32 offset
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if (!MASKED32 (source, bitnum, bitnum))
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{
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if (annul)
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nia.ip = -1;
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nia.dp = cia.ip + 4 * offset;
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}
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return nia;
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31.BITNUM,26.Source,21.0b100100,15.A,14.SignedOffset::::bbz i
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nia = do_bbz (_SD, nia, BITNUM, rSource, A, vSignedOffset);
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31.BITNUM,26.Source,21.0b11100100,13.A,12.0,11./,4.IndOff::::bbz r
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nia = do_bbz (_SD, nia, BITNUM, rSource, A, rIndOff);
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31.BITNUM,26.Source,21.0b11100100,13.A,12.1,11./::::bbz l
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long_immediate (LongSignedImmediate);
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nia = do_bbz (_SD, nia, BITNUM, rSource, A, LongSignedImmediate);
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// bcnd[.a]
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instruction_address::function::do_bcnd:instruction_address nia, int Cond, unsigned32 source, int annul, unsigned32 offset
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int condition;
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int size = EXTRACTED32 (Cond, 31 - 27, 30 - 27);
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int code = EXTRACTED32 (Cond, 29 - 27, 27 - 27);
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signed32 val = 0;
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switch (size)
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{
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case 0: val = SEXT32 (source, 7); break;
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case 1: val = SEXT32 (source, 15); break;
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case 2: val = source; break;
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default: engine_error (SD, CPU, cia, "bcnd - reserved size");
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}
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switch (code)
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{
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case 0: condition = 0; break;
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case 1: condition = val > 0; break;
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case 2: condition = val == 0; break;
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case 3: condition = val >= 0; break;
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case 4: condition = val < 0; break;
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case 5: condition = val != 0; break;
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case 6: condition = val <= 0; break;
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default: condition = 1; break;
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}
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if (condition)
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{
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if (annul)
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nia.ip = -1;
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nia.dp = cia.ip + 4 * offset;
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}
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return nia;
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31.Code,26.Source,21.0b100110,15.A,14.SignedOffset::::bcnd i
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nia = do_bcnd (_SD, nia, Code, rSource, A, vSignedOffset);
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31.Code,26.Source,21.0b11100110,13.A,12.0,11./,4.IndOff::::bcnd r
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nia = do_bcnd (_SD, nia, Code, rSource, A, rIndOff);
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31.Code,26.Source,21.0b11100110,13.A,12.1,11./::::bcnd l
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long_immediate (LongSignedImmediate);
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nia = do_bcnd (_SD, nia, Code, rSource, A, LongSignedImmediate);
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// br[.a] - see bbz[.a]
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// brcr
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#void::function::do_brcr:unsigned32 offset
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# sim_io_error ("brcr");
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31.//,27.0,26.//,21.0b0000110,14.CRN::::brcr i
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# nia = do_brcr (_SD, rCRN_val);
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31.//,27.0,26.//,21.0b110000110,12.0,11./,4.Source1::::brcr r
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# nia = do_brcr (_SD, CRN[rSource1]);
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31.//,27.0,26.//,21.0b110000110,12.1,11./::::brcr l
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# nia = do_brcr (_SD, CRN[SL]);
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// bsr[.a]
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instruction_address::function::do_bsr:instruction_address nia, signed32 *rLink, int annul, unsigned32 offset
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if (annul)
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{
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*rLink = nia.ip;
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nia.ip = -1;
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}
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else
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*rLink = cia.dp + sizeof (instruction_word);
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nia.dp = cia.ip + 4 * offset;
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return nia;
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31.Link,26./,21.0b100000,15.A,14.SignedOffset::::bsr i
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nia = do_bsr (_SD, nia, rLink, A, vSignedOffset);
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31.Link,26./,21.0b11100000,13.A,12.0,11./,4.IndOff::::bsr r
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nia = do_bsr (_SD, nia, rLink, A, rIndOff);
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31.Link,26./,21.0b11100000,13.A,12.1,11./::::bsr l
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long_immediate (LongSignedImmediate);
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nia = do_bsr (_SD, nia, rLink, A, LongSignedImmediate);
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// cmnd
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31./,21.0b0000010,14.UI::::cmnd i
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31./,21.0b110000010,12.0,11./,4.Source1::::cmnd r
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31./,21.0b110000010,12.1,11./::::cmnd l
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// cmp
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unsigned32::function::cmp_vals:signed32 s1, unsigned32 u1, signed32 s2, unsigned32 u2
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unsigned32 field = 0;
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if (s1 == s2) field |= BIT32 (0);
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if (s1 != s2) field |= BIT32 (1);
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if (s1 > s2) field |= BIT32 (2);
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if (s1 <= s2) field |= BIT32 (3);
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if (s1 < s2) field |= BIT32 (4);
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if (s1 >= s2) field |= BIT32 (5);
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if (u1 > u2) field |= BIT32 (6);
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if (u1 <= u2) field |= BIT32 (7);
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if (u1 < u2) field |= BIT32 (8);
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if (u1 >= u2) field |= BIT32 (9);
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return field;
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void::function::do_cmp:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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unsigned32 field = 0;
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field |= INSERTED32 (cmp_vals (_SD, Source2, Source1, Source2, Source2),
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29, 20);
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field |= INSERTED32 (cmp_vals (_SD, (signed16)Source1, (unsigned16)Source1,
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(signed16)Source2, (unsigned16)Source2),
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19, 10);
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field |= INSERTED32 (cmp_vals (_SD, (signed8)Source1, (unsigned8)Source1,
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(signed8)Source2, (unsigned8)Source2),
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9, 0);
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*rDest = field;
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31.Dest,26.Source2,21.0b1010000,14.SignedImmediate::::cmp i
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do_cmp (_SD, rDest, vSource1, rSource2);
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31.Dest,26.Source2,21.0b111010000,12.0,11./,4.Source1::::cmp r
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do_cmp (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b111010000,12.1,11./::::cmp l
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long_immediate (LongSignedImmediate);
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do_cmp (_SD, rDest, LongSignedImmediate, rSource2);
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// dcache
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31./,27.F,26.Source2,21.0b0111,17.M,16.0b00,14.SignedOffset::::dcache i
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/* NOP */
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31./,27.F,26.Source2,21.0b110111,15.M,14.0b00,12.0,11./,4.Source1::::dcache r
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/* NOP */
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31./,27.F,26.Source2,21.0b110111,15.M,14.0b00,12.1,11./::::dcache l
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long_immediate (LongSignedImmediate);
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LongSignedImmediate++;
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/* NOP */
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// dld[{.b|.h|.d}]
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void::function::do_dld:int Dest, unsigned32 Base, unsigned32 *rBase, int m , int sz, int S, unsigned32 Offset
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do_ld (_SD, Dest, Base, rBase, m, sz, S, Offset);
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31.Dest,26.Base,21.0b110100,15.m,14.sz,12.0,11.S,10.1,9./,4.IndOff::::dld r
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do_dld (_SD, Dest, rBase, &GPR(Base), m, sz, S, rIndOff);
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31.Dest,26.Base,21.0b110100,15.m,14.sz,12.1,11.S,10.1,9./::::dld l
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long_immediate (LongSignedImmediateOffset);
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do_dld (_SD, Dest, rBase, &GPR(Base), m, sz, S, LongSignedImmediateOffset);
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// dld.u[{.b|.h|.d}]
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void::function::do_dld_u:unsigned32 *rDest, unsigned32 Base, unsigned32 *rBase, int m , int sz, int S, unsigned32 Offset
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do_ld_u (_SD, rDest, Base, rBase, m, sz, S, Offset);
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31.Dest,26.Base,21.0b110101,15.m,14.sz,12.0,11.S,10.1,9./,4.IndOff::::dld.u r
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do_dld_u (_SD, rDest, rBase, &GPR(Base), m, sz, S, rIndOff);
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31.Dest,26.Base,21.0b110101,15.m,14.sz,12.1,11.S,10.1,9./::::dld.u l
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long_immediate (LongSignedImmediateOffset);
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do_dld_u (_SD, rDest, rBase, &GPR(Base), m, sz, S, LongSignedImmediateOffset);
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// dst[{.b|.h|.d}]
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void::function::do_dst:int Source, unsigned32 Base, unsigned32 *rBase, int m , int sz, int S, unsigned32 Offset
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do_st (_SD, Source, Base, rBase, m, sz, S, Offset);
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31.Source,26.Base,21.0b110110,15.m,14.sz,12.0,11.S,10.1,9./,4.IndOff::::dst r
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do_dst (_SD, Source, rBase, &GPR(Base), m, sz, S, rIndOff);
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31.Source,26.Base,21.0b110110,15.m,14.sz,12.1,11.S,10.1,9./::::dst l
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long_immediate (LongSignedImmediateOffset);
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do_dst (_SD, Source, rBase, &GPR(Base), m, sz, S, LongSignedImmediateOffset);
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// estop
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31./,21.0b1111111,14.1,13.0,12.0,11./::::estop
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// etrap
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31./,27.1,26./,21.0b0000001,14.UTN::::etrap i
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31./,27.1,26./,21.0b110000001,12.0,11./,4.iUTN::::etrap r
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31./,27.1,26./,21.0b110000001,12.1,11./::::etrap l
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// exts - see shift.ds
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// extu - see shift.dz
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// fadd.{s|d}{s|d}{s|d}
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#void::function::do_fadd:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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# sim_io_error ("fadd");
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31.Dest,26.Source2,21.0b111110000,12.0,11.r,10.PD,8.P2,6.P1,4.Source1::::fadd r
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# do_fadd (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b111110000,12.1,11.r,10.PD,8.P2,6.P1,4./::::fadd l
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# do_fadd (_SD, rDest, LongSignedImmediate, rSource2);
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// fcmp.{s|d}{s|d}{s|d}
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#void::function::do_fcmp:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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# sim_io_error ("fcmp");
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31.Dest,26.Source2,21.0b111110101,12.0,11./,10.0,8.P2,6.P1,4.Source1::::fcmp r
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# do_fcmp (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b111110101,12.1,11./,10.0,8.P2,6.P1,4./::::fcmp l
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# do_fcmp (_SD, rDest, LongSignedImmediate, rSource2);
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// fdiv.{s|d}{s|d}{s|d}
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#void::function::do_fdiv:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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# sim_io_error ("fdiv");
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31.Dest,26.Source2,21.0b111110011,12.0,11./,10.PD,8.P2,6.P1,4.Source1::::fdiv r
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# do_fdiv (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b111110011,12.1,11./,10.PD,8.P2,6.P1,4./::::fdiv l
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# do_fdiv (_SD, rDest, LongSignedImmediate, rSource2);
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// fmpy.{s|d|i|u}{s|d|i|u}{s|d|i|u}
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#void::function::do_fmpy:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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# sim_io_error ("fmpy");
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31.Dest,26.Source2,21.0b111110010,12.0,11./,10.PD,8.P2,6.P1,4.Source1::::fmpy r
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# do_fmpy (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b111110010,12.1,11./,10.PD,8.P2,6.P1,4./::::fmpy l
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# do_fmpy (_SD, rDest, LongSignedImmediate, rSource2);
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// frndm.{s|d|i|u}{s|d|i|u}{s|d|i|u}
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#void::function::do_frndm:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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# sim_io_error ("frndm");
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31.Dest,26.Source2,21.0b111110100,12.0,11.r,10.PD,8.0b11,6.P1,4.Source1::::frndm r
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# do_frndm (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b111110100,12.1,11.r,10.PD,8.0b11,6.P1,4./::::frndm l
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# do_frndm (_SD, rDest, LongSignedImmediate, rSource2);
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// frndn.{s|d|i|u}{s|d|i|u}{s|d|i|u}
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#void::function::do_frndn:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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# sim_io_error ("frndn");
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31.Dest,26.Source2,21.0b111110100,12.0,11.r,10.PD,8.0b00,6.P1,4.Source1::::frndn r
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# do_frndn (_SD, rDest, rSource1, rSource2);
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31.Dest,26.Source2,21.0b111110100,12.1,11.r,10.PD,8.0b00,6.P1,4./::::frndn l
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# do_frndn (_SD, rDest, LongSignedImmediate, rSource2);
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// frndp.{s|d|i|u}{s|d|i|u}{s|d|i|u}
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#void::function::do_frndp:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
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# sim_io_error ("frndp");
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#31.Dest,26.Source2,21.0b111110100,12.0,11.r,10.PD,8.0b10,6.P1,4.Source1::::frndp r
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# do_frndp (_SD, rDest, rSource1, rSource2);
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#31.Dest,26.Source2,21.0b111110100,12.1,11.r,10.PD,8.0b10,6.P1,4./::::frndp l
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# do_frndp (_SD, rDest, LongSignedImmediate, rSource2);
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|
|
|
// frndz.{s|d|i|u}{s|d|i|u}{s|d|i|u}
|
|
#void::function::do_frndz:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
|
|
# sim_io_error ("frndz");
|
|
31.Dest,26.Source2,21.0b111110100,12.0,11.r,10.PD,8.0b01,6.P1,4.Source1::::frndz r
|
|
# do_frndz (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b111110100,12.1,11.r,10.PD,8.0b01,6.P1,4./::::frndz l
|
|
# do_frndz (_SD, rDest, LongSignedImmediate, rSource2);
|
|
|
|
|
|
// fsqrt.{s|d}{s|d}{s|d}
|
|
#void::function::do_fsqrt:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
|
|
# sim_io_error ("fsqrt");
|
|
31.Dest,26.Source2,21.0b111110111,12.0,11./,10.PD,8.//,6.P1,4.Source1::::fsqrt r
|
|
# do_fsqrt (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b111110111,12.1,11./,10.PD,8.//,6.P1,4./::::fsqrt l
|
|
# do_fsqrt (_SD, rDest, LongSignedImmediate, rSource2);
|
|
|
|
|
|
// fsub.{s|d}{s|d}{s|d}
|
|
#void::function::do_fsub:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
|
|
# sim_io_error ("fsub");
|
|
31.Dest,26.Source2,21.0b111110001,12.0,11.r,10.PD,8.P2,6.P1,4.Source1::::fsub r
|
|
# do_fsub (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b111110001,12.1,11.r,10.PD,8.P2,6.P1,4./::::fsub l
|
|
# do_fsub (_SD, rDest, LongSignedImmediate, rSource2);
|
|
|
|
|
|
// illop
|
|
31./,21.0b0000000,14./::::illop
|
|
31./,21.0b111111111,12./::::illop l
|
|
|
|
|
|
// ins - see sl.im
|
|
|
|
|
|
// jsr[.a]
|
|
instruction_address::function::do_jsr:instruction_address nia, signed32 *rLink, int annul, unsigned32 offset, unsigned32 base
|
|
if (annul)
|
|
{
|
|
*rLink = nia.ip;
|
|
nia.ip = -1;
|
|
}
|
|
else
|
|
*rLink = cia.dp + sizeof (instruction_word);
|
|
nia.dp = offset + base;
|
|
if (nia.dp & 0x3)
|
|
engine_error (SD, CPU, cia, "destination address 0x%lx misaligned",
|
|
(unsigned long) nia.dp);
|
|
return nia;
|
|
31.Link,26.Base,21.0b100010,15.A,14.SignedOffset::::jsr i
|
|
nia = do_jsr (_SD, nia, rLink, A, vSignedOffset, rBase);
|
|
31.Link,26.Base,21.0b11100010,13.A,12.0,11./,4.Source1::::jsr r
|
|
nia = do_jsr (_SD, nia, rLink, A, rSource1, rBase);
|
|
31.Link,26.Base,21.0b11100010,13.A,12.1,11./::::jsr l
|
|
long_immediate (LongSignedImmediate);
|
|
nia = do_jsr (_SD, nia, rLink, A, LongSignedImmediate, rBase);
|
|
|
|
|
|
// ld[{.b.h.d}]
|
|
void::function::do_ld:int Dest, unsigned32 Base, unsigned32 *rBase, int m , int sz, int S, unsigned32 Offset
|
|
unsigned32 addr;
|
|
switch (sz)
|
|
{
|
|
case 0:
|
|
addr = Base + (S ? (Offset << 0) : Offset);
|
|
if (m)
|
|
*rBase = addr;
|
|
GPR(Dest) = MEM (signed, addr, 1);
|
|
break;
|
|
case 1:
|
|
addr = Base + (S ? (Offset << 1) : Offset);
|
|
if (m)
|
|
*rBase = addr;
|
|
GPR(Dest) = MEM (signed, addr, 2);
|
|
break;
|
|
case 2:
|
|
addr = Base + (S ? (Offset << 2) : Offset);
|
|
if (m)
|
|
*rBase = addr;
|
|
GPR(Dest) = MEM (signed, addr, 4);
|
|
break;
|
|
case 3:
|
|
if (Dest & 0x1)
|
|
engine_error (SD, CPU, cia, "0x%lx: ld.d to odd register %d",
|
|
cia.ip, Dest);
|
|
addr = Base + (S ? (Offset << 3) : Offset);
|
|
if (m)
|
|
*rBase = addr;
|
|
*(unsigned64*)(&GPR(Dest)) = MEM (signed, addr, 8);
|
|
break;
|
|
default:
|
|
addr = -1;
|
|
engine_error (SD, CPU, cia, "ld - invalid sz %d", sz);
|
|
}
|
|
31.Dest,26.Base,21.0b0100,17.m,16.sz,14.SignedOffset::::ld i
|
|
do_ld (_SD, Dest, rBase, &GPR(Base), m, sz, 0, vSignedOffset);
|
|
31.Dest,26.Base,21.0b110100,15.m,14.sz,12.0,11.S,10.0,9./,4.IndOff::::ld r
|
|
do_ld (_SD, Dest, rBase, &GPR(Base), m, sz, S, rIndOff);
|
|
31.Dest,26.Base,21.0b110100,15.m,14.sz,12.1,11.S,10.0,9./::::ld l
|
|
long_immediate (LongSignedImmediateOffset);
|
|
do_ld (_SD, Dest, rBase, &GPR(Base), m, sz, S, LongSignedImmediateOffset);
|
|
|
|
|
|
// ld.u[{.b.h.d}]
|
|
void::function::do_ld_u:unsigned32 *rDest, unsigned32 Base, unsigned32 *rBase, int m , int sz, int S, unsigned32 Offset
|
|
unsigned32 addr;
|
|
switch (sz)
|
|
{
|
|
case 0:
|
|
addr = Base + (S ? (Offset << 0) : Offset);
|
|
*rDest = MEM (unsigned, addr, 1);
|
|
break;
|
|
case 1:
|
|
addr = Base + (S ? (Offset << 1) : Offset);
|
|
*rDest = MEM (unsigned, addr, 2);
|
|
break;
|
|
default:
|
|
addr = -1;
|
|
engine_error (SD, CPU, cia, "ld.u - invalid sz %d", sz);
|
|
}
|
|
if (m)
|
|
*rBase = addr;
|
|
31.Dest,26.Base,21.0b0101,17.m,16.sz,14.SignedOffset::::ld.u i
|
|
do_ld_u (_SD, rDest, rBase, &GPR(Base), m, sz, 0, vSignedOffset);
|
|
31.Dest,26.Base,21.0b110101,15.m,14.sz,12.0,11.S,10.0,9./,4.IndOff::::ld.u r
|
|
do_ld_u (_SD, rDest, rBase, &GPR(Base), m, sz, S, rIndOff);
|
|
31.Dest,26.Base,21.0b110101,15.m,14.sz,12.1,11.S,10.0,9./::::ld.u l
|
|
long_immediate (LongSignedImmediateOffset);
|
|
do_ld_u (_SD, rDest, rBase, &GPR(Base), m, sz, S, LongSignedImmediateOffset);
|
|
|
|
|
|
// lmo
|
|
31.Dest,26.Source,21.111111000,12.0,11./::::lmo
|
|
|
|
|
|
// nop - see rdcr 0, r0
|
|
|
|
|
|
void::function::do_or:unsigned32 *rDest, unsigned32 Source1, unsigned32 Source2
|
|
*rDest = Source1 | Source2;
|
|
|
|
|
|
// or, or.tt
|
|
31.Dest,26.Source2,21.0b0010111,14.UnsignedImmediate::::or.tt i
|
|
do_or (_SD, rDest, vSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b110010111,12.0,11./,4.Source1::::or.tt r
|
|
do_or (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b110010111,12.1,11./::::or.tt l
|
|
long_immediate (LongUnsignedImmediate);
|
|
do_or (_SD, rDest, LongUnsignedImmediate, rSource2);
|
|
|
|
|
|
// or.ff
|
|
31.Dest,26.Source2,21.0b0011110,14.UnsignedImmediate::::or.ff i
|
|
do_or (_SD, rDest, ~vSource1, ~rSource2);
|
|
31.Dest,26.Source2,21.0b110011110,12.0,11./,4.Source1::::or.ff r
|
|
do_or (_SD, rDest, ~rSource1, ~rSource2);
|
|
31.Dest,26.Source2,21.0b110011110,12.1,11./::::or.ff l
|
|
long_immediate (LongUnsignedImmediate);
|
|
do_or (_SD, rDest, ~LongUnsignedImmediate, ~rSource2);
|
|
|
|
|
|
// or.ft
|
|
31.Dest,26.Source2,21.0b0011101,14.UnsignedImmediate::::or.ft i
|
|
do_or (_SD, rDest, ~vSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b110011101,12.0,11./,4.Source1::::or.ft r
|
|
do_or (_SD, rDest, ~rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b110011101,12.1,11./::::or.ft l
|
|
long_immediate (LongUnsignedImmediate);
|
|
do_or (_SD, rDest, ~LongUnsignedImmediate, rSource2);
|
|
|
|
|
|
// or.tf
|
|
31.Dest,26.Source2,21.0b0011011,14.UnsignedImmediate::::or.tf i
|
|
do_or (_SD, rDest, vSource1, ~rSource2);
|
|
31.Dest,26.Source2,21.0b110011011,12.0,11./,4.Source1::::or.tf r
|
|
do_or (_SD, rDest, rSource1, ~rSource2);
|
|
31.Dest,26.Source2,21.0b110011011,12.1,11./::::or.tf l
|
|
long_immediate (LongUnsignedImmediate);
|
|
do_or (_SD, rDest, LongUnsignedImmediate, ~rSource2);
|
|
|
|
|
|
// rdcr
|
|
void::function::do_rdcr:unsigned32 Dest, int cr
|
|
if (Dest != 0)
|
|
engine_error (SD, CPU, cia, "rdcr unimplement");
|
|
31.Dest,26.0,21.0b0000100,14.UCRN::::rdcr i
|
|
do_rdcr (_SD, Dest, UCRN);
|
|
31.Dest,26.0,21.0b110000100,12.0,11./,4.INDCR::::rdcr r
|
|
do_rdcr (_SD, Dest, UCRN);
|
|
31.Dest,26.0,21.0b110000100,12.1,11./::::rdcr l
|
|
long_immediate (UnsignedControlRegisterNumber);
|
|
do_rdcr (_SD, Dest, UnsignedControlRegisterNumber);
|
|
|
|
|
|
// rmo
|
|
31.Dest,26.Source,21.0b111111001,12.0,11./::::rmo
|
|
|
|
|
|
// rotl - see sl.dz
|
|
|
|
|
|
//rotr - see sl.dz
|
|
|
|
|
|
// shl - see sl.iz
|
|
|
|
|
|
// sl.{d|e|i}{m|s|z}
|
|
void::function::do_shift:int Dest, int Source, int Merge, int i, int n, int EndMask, int Rotate
|
|
/* see 10-30 for a reasonable description */
|
|
unsigned32 rotated;
|
|
unsigned32 endmask;
|
|
unsigned32 shiftmask;
|
|
unsigned32 cm;
|
|
int nRotate;
|
|
/* rotate the source */
|
|
if (n)
|
|
{
|
|
rotated = ROTR32 (GPR (Source), Rotate);
|
|
nRotate = (- Rotate) & 31;
|
|
}
|
|
else
|
|
{
|
|
rotated = ROTL32 (GPR (Source), Rotate);
|
|
nRotate = Rotate;
|
|
}
|
|
/* form the end mask */
|
|
if (EndMask == 0)
|
|
endmask = -1;
|
|
else
|
|
endmask = (1 << EndMask) - 1;
|
|
if (i)
|
|
endmask = ~endmask;
|
|
/* form the shiftmask */
|
|
switch (Merge)
|
|
{
|
|
case 0: case 1: case 2:
|
|
shiftmask = -1; /* disabled */
|
|
break;
|
|
case 3: case 4: case 5:
|
|
shiftmask = ((1 << nRotate) - 1); /* enabled */
|
|
break;
|
|
case 6: case 7:
|
|
shiftmask = ~((1 << nRotate) - 1); /* inverted */
|
|
break;
|
|
default:
|
|
engine_error (SD, CPU, cia,
|
|
"0x%lx: Invalid merge (%d) for shift",
|
|
cia.ip, Source);
|
|
shiftmask = 0;
|
|
}
|
|
/* and the composite mask */
|
|
cm = shiftmask & endmask;
|
|
/* and merge */
|
|
switch (Merge)
|
|
{
|
|
case 0: case 3: case 6: /* zero */
|
|
GPR (Dest) = rotated & cm;
|
|
break;
|
|
case 1: case 4: case 7: /* merge */
|
|
GPR (Dest) = (rotated & cm) | (GPR (Dest) & ~cm);
|
|
break;
|
|
case 2: case 5: /* sign */
|
|
{
|
|
int b;
|
|
GPR (Dest) = rotated & cm;
|
|
for (b = 1; b <= 31; b++)
|
|
if (!MASKED32 (cm, b, b))
|
|
GPR (Dest) |= INSERTED32 (EXTRACTED32 (GPR (Dest), b - 1, b - 1),
|
|
b, b);
|
|
}
|
|
break;
|
|
default:
|
|
engine_error (SD, CPU, cia,
|
|
"0x%lx: Invalid merge (%d)",
|
|
cia.ip, Source);
|
|
|
|
}
|
|
31.Dest,26.Source,21.0b0001,17.Merge,14./,11.i,10.n,9.EndMask,4.Rotate::::sl i
|
|
do_shift (_SD, Dest, Source, Merge, i, n, EndMask, Rotate);
|
|
31.Dest,26.Source,21.0b110001,15.Merge,12.0,11.i,10.n,9.EndMask,4.RotReg::::sl r
|
|
int endmask;
|
|
if (EndMask == 0)
|
|
endmask = EndMask;
|
|
else
|
|
{
|
|
if (Source & 1)
|
|
engine_error (SD, CPU, cia,
|
|
"0x%lx: Invalid source (%d) for shift",
|
|
cia.ip, Source);
|
|
endmask = GPR (Source + 1) & 31;
|
|
}
|
|
do_shift (_SD, Dest, Source, Merge, i, n, endmask, GPR (RotReg) & 31);
|
|
|
|
|
|
// sli.{d|e|i}{m|s|z}
|
|
#31.Dest,26.Source,21.0b0001,17.Merge,14./,11.1,10.0,9.EndMask,4.Rotate::::sli i
|
|
#31.Dest,26.Source,21.0b110001,15.Merge,12.0,11.1,10.0,9.EndMask,4.RotReg::::sli r
|
|
|
|
|
|
// sr.{d|e|i}{m|s|z}
|
|
#31.Dest,26.Source,21.0b0001,17.Merge,14./,11.0,10.1,9.EndMask,4.Rotate::::sr i
|
|
#31.Dest,26.Source,21.0b110001,15.Merge,12.0,11.0,10.1,9.EndMask,4.RotReg::::sr r
|
|
|
|
|
|
// sra - see sr.es
|
|
|
|
|
|
// sri.{d|e|i}{m|s|z}
|
|
#31.Dest,26.Source,21.0b0001,17.Merge,14./,11.1,10.1,9.EndMask,4.Rotate::::sri i
|
|
#31.Dest,26.Source,21.0b110001,15.Merge,12.0,11.1,10.1,9.EndMask,4.RotReg::::sri r
|
|
|
|
|
|
// srl - see sr.ez
|
|
|
|
|
|
// st[{.b|.h|.d}]
|
|
void::function::do_st:int Source, unsigned32 Base, unsigned32 *rBase, int m , int sz, int S, unsigned32 Offset
|
|
unsigned32 addr;
|
|
switch (sz)
|
|
{
|
|
case 0:
|
|
addr = Base + (S ? (Offset << 0) : Offset);
|
|
STORE (addr, 1, GPR(Source));
|
|
break;
|
|
case 1:
|
|
addr = Base + (S ? (Offset << 1) : Offset);
|
|
STORE (addr, 2, GPR(Source));
|
|
break;
|
|
case 2:
|
|
addr = Base + (S ? (Offset << 2) : Offset);
|
|
STORE (addr, 4, GPR(Source));
|
|
break;
|
|
case 3:
|
|
if (Source & 0x1)
|
|
engine_error (SD, CPU, cia, "0x%lx: st.d with odd source register %d",
|
|
cia.ip, Source);
|
|
addr = Base + (S ? (Offset << 3) : Offset);
|
|
STORE (addr, 8, *(unsigned64*)&GPR(Source));
|
|
break;
|
|
default:
|
|
addr = -1;
|
|
engine_error (SD, CPU, cia, "st - invalid sz %d", sz);
|
|
}
|
|
if (m)
|
|
*rBase = addr;
|
|
31.Source,26.Base,21.0b0110,17.m,16.sz,14.SignedOffset::::st i
|
|
do_st (_SD, Source, rBase, &GPR(Base), m, sz, 0, vSignedOffset);
|
|
31.Source,26.Base,21.0b110110,15.m,14.sz,12.0,11.S,10.0,9./,4.IndOff::::st r
|
|
do_st (_SD, Source, rBase, &GPR(Base), m, sz, S, rIndOff);
|
|
31.Source,26.Base,21.0b110110,15.m,14.sz,12.1,11.S,10.0,9./::::st l
|
|
long_immediate (LongSignedImmediateOffset);
|
|
do_st (_SD, Source, rBase, &GPR(Base), m, sz, S, LongSignedImmediateOffset);
|
|
|
|
|
|
// sub
|
|
void::function::do_sub:signed32 *rDest, signed32 Source1, signed32 Source2
|
|
ALU_BEGIN (Source1);
|
|
ALU_SUB (Source2);
|
|
ALU_END (*rDest);
|
|
31.Dest,26.Source2,21.0b101101,15.0,14.SignedImmediate::::sub i
|
|
do_sub (_SD, rDest, vSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b11101101,13.0,12.0,11./,4.Source1::::sub r
|
|
do_sub (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b11101101,13.0,12.1,11./::::sub l
|
|
long_immediate (LongSignedImmediate);
|
|
do_sub (_SD, rDest, LongSignedImmediate, rSource2);
|
|
|
|
|
|
// subu
|
|
void::function::do_subu:signed32 *rDest, signed32 Source1, signed32 Source2
|
|
*rDest = Source1 - Source2;
|
|
// NOTE - the book has 15.1 which conflicts with subu.
|
|
31.Dest,26.Source2,21.0b101101,15.1,14.SignedImmediate::::subu i
|
|
do_subu (_SD, rDest, vSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b11101101,13.1,12.0,11./,4.Source1::::subu r
|
|
do_subu (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b11101101,13.1,12.1,11./::::subu l
|
|
long_immediate (LongSignedImmediate);
|
|
do_subu (_SD, rDest, LongSignedImmediate, rSource2);
|
|
|
|
|
|
// swcr
|
|
#void::function::do_swcr:signed32 *rDest, signed32 Source1, signed32 Source2
|
|
31.Dest,26.Source,21.0b000010,15.1,14.SignedImmediate::::swcr i
|
|
# do_swcr (_SD, rDest, SI, rSource2);
|
|
31.Dest,26.Source,21.0b11000010,13.1,12.0,11./,4.INDCR::::swcr r
|
|
# do_swcr (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source,21.0b11000010,13.1,12.1,11./::::swcr l
|
|
# do_swcr (_SD, rDest, LongSignedImmediate, rSource2);
|
|
|
|
|
|
// trap
|
|
void::function::do_trap:unsigned32 trap_number
|
|
switch (trap_number)
|
|
{
|
|
case 72:
|
|
switch (GPR(15))
|
|
{
|
|
case 1: /* EXIT */
|
|
{
|
|
engine_halt (SD, CPU, cia, sim_exited, GPR(2));
|
|
break;
|
|
}
|
|
case 4: /* WRITE */
|
|
{
|
|
int i;
|
|
if (GPR(2) != 1)
|
|
engine_error (SD, CPU, cia,
|
|
"0x%lx: write to invalid fid %d",
|
|
(unsigned long) cia.ip, GPR(2));
|
|
for (i = 0; i < GPR(6); i++)
|
|
{
|
|
char c;
|
|
c = MEM (unsigned, GPR(4) + i, 1);
|
|
sim_io_write_stdout (SD, &c, 1);
|
|
}
|
|
GPR(2) = GPR(6);
|
|
break;
|
|
}
|
|
default:
|
|
engine_error (SD, CPU, cia,
|
|
"0x%lx: unknown syscall %d",
|
|
(unsigned long) cia.ip, GPR(15));
|
|
}
|
|
break;
|
|
case 73:
|
|
engine_halt (SD, CPU, cia, sim_stopped, SIGTRAP);
|
|
default:
|
|
engine_error (SD, CPU, cia,
|
|
"0x%lx: unsupported trap %d",
|
|
(unsigned long) cia.ip, trap_number);
|
|
}
|
|
31./,27.0,26./,21.0b0000001,14.UTN::::trap i
|
|
do_trap (_SD, UTN);
|
|
31./,27.0,26./,21.0b110000001,12.0,11./,4.INDTR::::trap r
|
|
do_trap (_SD, UTN);
|
|
31./,27.0,26./,21.0b110000001,12.1,11./::::trap l
|
|
long_immediate (UTN);
|
|
do_trap (_SD, UTN);
|
|
|
|
|
|
// vadd.{s|d}{s|d}
|
|
31.*,26.Dest,21.0b11110,16./,15.0b000,12.0,11./,10.*,9.*,7.PD,6.*,5.P1,4.Source::::vadd r
|
|
31.*,26.Dest,21.0b11110,16./,15.0b000,12.1,11./,10.*,9.*,7.PD,6.*,5.P1,4.Source::::vadd l
|
|
|
|
|
|
// vld{0|1}.{s|d} - see above - same instruction
|
|
#31.Dest,26.*,21.0b11110,16.*,10.1,9.S,8.*,6.p,7.******::::vld
|
|
|
|
|
|
// vmac.ss{s|d}
|
|
#31.*, 26.Source2,21.0b11110,16.a0,15.0b110,12.0,11.a1,10.*,9.*, 8.Z,7./,6.*,5./,4.Source1::::vmac.ss ra
|
|
31.Dest,26.Source2,21.0b11110,16.a0,15.0b110,12.0,11.a1,10.0,9.PD,8.Z,7./,6.0,5./,4.Source1::::vmac.ss rr
|
|
#31.*, 26.Source2,21.0b11110,16.a0,15.0b110,12.1,11.a1,10.*,9.*, 8.Z,7./,6.*,5./,4./::::vmac.ss ia
|
|
31.Dest,26.Source2,21.0b11110,16.a0,15.0b110,12.1,11.a1,10.0,9.PD,8.Z,7./,6.0,5./,4./::::vmac.ss ir
|
|
|
|
|
|
// vmpy.{s|d}{s|d}
|
|
31.*,26.Dest,21.0b11110,16./,15.0b010,12.0,11./,10.*,8.*,7.PD,6.*,5.P1,4.Source::::vmpy r
|
|
31.*,26.Dest,21.0b11110,16./,15.0b010,12.1,11./,10.*,8.*,7.PD,6.*,5.P1,4./::::vmpy l
|
|
|
|
|
|
// vmsc.ss{s|d}
|
|
#31.*, 26.Source2,21.0b11110,16.a0,15.0b111,12.0,11.a1,10.*,9.*, 8.Z,7./,6.*,5./,4.Source1::::vmsc.ss ra
|
|
31.Dest,26.Source2,21.0b11110,16.a0,15.0b111,12.0,11.a1,10.0,9.PD,8.Z,7./,6.0,5./,4.Source1::::vmsc.ss rr
|
|
#31.*, 26.Source2,21.0b11110,16.a0,15.0b111,12.1,11.a1,10.*,9.*, 8.Z,7./,6.*,5./,4./::::vmsc.ss ia
|
|
31.Dest,26.Source2,21.0b11110,16.a0,15.0b111,12.1,11.a1,10.0,9.PD,8.Z,7./,6.0,5./,4./::::vmsc.ss ir
|
|
|
|
|
|
// vmsub.{s|d}{s|d}
|
|
31.*,26.Dest,21.0b11110,16.a0,15.0b011,12.0,11.a1,10.*,8.Z,7.PD,6.*,5./,4.Source::::vmsub r
|
|
31.*,26.Dest,21.0b11110,16.a0,15.0b011,12.1,11.a1,10.*,8.Z,7.PD,6.*,5./,4./::::vmsub l
|
|
|
|
|
|
// vrnd.{s|d}{s|d}
|
|
31.*,26.Dest,21.0b11110,16.a0,15.0b100,12.0,11.a1,10.*,8.PD,6.*,5.P1,4.Source::::vrnd f r
|
|
31.*,26.Dest,21.0b11110,16.a0,15.0b100,12.1,11.a1,10.*,8.PD,6.*,5.P1,4./::::vrnd f l
|
|
|
|
|
|
// vrnd.{i|u}{s|d}
|
|
31.*,26.Dest,21.0b11110,16./,15.0b101,12.0,11./,10.*,8./,7.PD,6.*,5.P1,4.Source::::vrnd i r
|
|
31.*,26.Dest,21.0b11110,16./,15.0b101,12.1,11./,10.*,8./,7.PD,6.*,5.P1,4./::::vrnd i l
|
|
|
|
|
|
// vst.{s|d} - see above - same instruction
|
|
#31.Source,26.*,21.0b11110,16.*,10.0,9.S,8.*,6.1,5.*::::vst
|
|
|
|
|
|
// vsub.{i|u}{s|d}
|
|
31.*,26.Dest,21.0b11110,16./,15.0b001,12.0,11./,10.*,8./,7.PD,6.*,5.P1,4.Source::::vsub r
|
|
31.*,26.Dest,21.0b11110,16./,15.0b001,12.1,11./,10.*,8./,7.PD,6.*,5.P1,4./::::vsub l
|
|
|
|
|
|
// wrcr - see swcr, creg, source, r0
|
|
|
|
|
|
// xnor
|
|
void::function::do_xnor:signed32 *rDest, signed32 Source1, signed32 Source2
|
|
*rDest = ~ (Source1 ^ Source2);
|
|
31.Dest,26.Source2,21.0b0011001,14.UnsignedImmediate::::xnor i
|
|
do_xnor (_SD, rDest, vSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b110011001,12.0,11./,4.Source1::::xnor r
|
|
do_xnor (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b110011001,12.1,11./::::xnor l
|
|
long_immediate (LongUnsignedImmediate);
|
|
do_xnor (_SD, rDest, LongUnsignedImmediate, rSource2);
|
|
|
|
|
|
// xor
|
|
void::function::do_xor:signed32 *rDest, signed32 Source1, signed32 Source2
|
|
*rDest = Source1 ^ Source2;
|
|
31.Dest,26.Source2,21.0b0010110,14.UnsignedImmediate::::xor i
|
|
do_xor (_SD, rDest, vSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b110010110,13.0,12.0,11./,4.Source1::::xor r
|
|
do_xor (_SD, rDest, rSource1, rSource2);
|
|
31.Dest,26.Source2,21.0b110010110,13.0,12.1,11./::::xor l
|
|
long_immediate (LongUnsignedImmediate);
|
|
do_xor (_SD, rDest, LongUnsignedImmediate, rSource2);
|