diff options
Diffstat (limited to 'include/pyr-opcode.h')
| -rwxr-xr-x | include/pyr-opcode.h | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/include/pyr-opcode.h b/include/pyr-opcode.h deleted file mode 100755 index 06632b8..0000000 --- a/include/pyr-opcode.h +++ /dev/null @@ -1,287 +0,0 @@ -/* pyramid.opcode.h -- gdb initial attempt. */ - -/* pyramid opcode table: wot to do with this - particular opcode */ - -struct pyr_datum -{ - char nargs; - char * args; /* how to compile said opcode */ - unsigned long mask; /* Bit vector: which operand modes are valid - for this opcode */ - unsigned char code; /* op-code (always 6(?) bits */ -}; - -typedef struct pyr_insn_format { - unsigned int mode :4; - unsigned int operator :8; - unsigned int index_scale :2; - unsigned int index_reg :6; - unsigned int operand_1 :6; - unsigned int operand_2:6; -} pyr_insn_format; - - -/* We store four bytes of opcode for all opcodes. - Pyramid is sufficiently RISCy that: - - insns are always an integral number of words; - - the length of any insn can be told from the first word of - the insn. (ie, if there are zero, one, or two words of - immediate operand/offset). - - - The args component is a string containing two characters for each - operand of the instruction. The first specifies the kind of operand; - the second, the place it is stored. */ - -/* Kinds of operands: - mask assembler syntax description - 0x0001: movw Rn,Rn register to register - 0x0002: movw K,Rn quick immediate to register - 0x0004: movw I,Rn long immediate to register - 0x0008: movw (Rn),Rn register indirect to register - movw (Rn)[x],Rn register indirect to register - 0x0010: movw I(Rn),Rn offset register indirect to register - movw I(Rn)[x],Rn offset register indirect, indexed, to register - - 0x0020: movw Rn,(Rn) register to register indirect - 0x0040: movw K,(Rn) quick immediate to register indirect - 0x0080: movw I,(Rn) long immediate to register indirect - 0x0100: movw (Rn),(Rn) register indirect to-register indirect - 0x0100: movw (Rn),(Rn) register indirect to-register indirect - 0x0200: movw I(Rn),(Rn) register indirect+offset to register indirect - 0x0200: movw I(Rn),(Rn) register indirect+offset to register indirect - - 0x0400: movw Rn,I(Rn) register to register indirect+offset - 0x0800: movw K,I(Rn) quick immediate to register indirect+offset - 0x1000: movw I,I(Rn) long immediate to register indirect+offset - 0x1000: movw (Rn),I(Rn) register indirect to-register indirect+offset - 0x1000: movw I(Rn),I(Rn) register indirect+offset to register indirect - +offset - 0x0000: (irregular) ??? - - - Each insn has a four-bit field encoding the type(s) of its operands. -*/ - -/* Some common combinations - */ - -/* the first 5,(0x1|0x2|0x4|0x8|0x10) ie (1|2|4|8|16), ie ( 32 -1)*/ -#define GEN_TO_REG (31) - -#define UNKNOWN ((unsigned long)-1) -#define ANY (GEN_TO_REG | (GEN_TO_REG << 5) | (GEN_TO_REG << 15)) - -#define CONVERT (1|8|0x10|0x20|0x200) - -#define K_TO_REG (2) -#define I_TO_REG (4) -#define NOTK_TO_REG (GEN_TO_REG & ~K_TO_REG) -#define NOTI_TO_REG (GEN_TO_REG & ~I_TO_REG) - -/* The assembler requires that this array be sorted as follows: - all instances of the same mnemonic must be consecutive. - All instances of the same mnemonic with the same number of operands - must be consecutive. - */ - -struct pyr_opcode /* pyr opcode text */ -{ - char * name; /* opcode name: lowercase string [key] */ - struct pyr_datum datum; /* rest of opcode table [datum] */ -}; - -#define pyr_how args -#define pyr_nargs nargs -#define pyr_mask mask -#define pyr_name name - -struct pyr_opcode pyr_opcodes[] = -{ - {"movb", { 2, "", UNKNOWN, 0x11}, }, - {"movh", { 2, "", UNKNOWN, 0x12} }, - {"movw", { 2, "", ANY, 0x10} }, - {"movl", { 2, "", ANY, 0x13} }, - {"mnegw", { 2, "", (0x1|0x8|0x10), 0x14} }, - {"mnegf", { 2, "", 0x1, 0x15} }, - {"mnegd", { 2, "", 0x1, 0x16} }, - {"mcomw", { 2, "", (0x1|0x8|0x10), 0x17} }, - {"mabsw", { 2, "", (0x1|0x8|0x10), 0x18} }, - {"mabsf", { 2, "", 0x1, 0x19} }, - {"mabsd", { 2, "", 0x1, 0x1a} }, - {"mtstw", { 2, "", (0x1|0x8|0x10), 0x1c} }, - {"mtstf", { 2, "", 0x1, 0x1d} }, - {"mtstd", { 2, "", 0x1, 0x1e} }, - {"mova", { 2, "", 0x8|0x10, 0x1f} }, - {"movzbw", { 2, "", (0x1|0x8|0x10), 0x20} }, - {"movzhw", { 2, "", (0x1|0x8|0x10), 0x21} }, - /* 2 insns out of order here */ - {"movbl", { 2, "", 1, 0x4f} }, - {"filbl", { 2, "", 1, 0x4e} }, - - {"cvtbw", { 2, "", CONVERT, 0x22} }, - {"cvthw", { 2, "", CONVERT, 0x23} }, - {"cvtwb", { 2, "", CONVERT, 0x24} }, - {"cvtwh", { 2, "", CONVERT, 0x25} }, - {"cvtwf", { 2, "", CONVERT, 0x26} }, - {"cvtwd", { 2, "", CONVERT, 0x27} }, - {"cvtfw", { 2, "", CONVERT, 0x28} }, - {"cvtfd", { 2, "", CONVERT, 0x29} }, - {"cvtdw", { 2, "", CONVERT, 0x2a} }, - {"cvtdf", { 2, "", CONVERT, 0x2b} }, - - {"addw", { 2, "", GEN_TO_REG, 0x40} }, - {"addwc", { 2, "", GEN_TO_REG, 0x41} }, - {"subw", { 2, "", GEN_TO_REG, 0x42} }, - {"subwb", { 2, "", GEN_TO_REG, 0x43} }, - {"rsubw", { 2, "", GEN_TO_REG, 0x44} }, - {"mulw", { 2, "", GEN_TO_REG, 0x45} }, - {"emul", { 2, "", GEN_TO_REG, 0x47} }, - {"umulw", { 2, "", GEN_TO_REG, 0x46} }, - {"divw", { 2, "", GEN_TO_REG, 0x48} }, - {"ediv", { 2, "", GEN_TO_REG, 0x4a} }, - {"rdivw", { 2, "", GEN_TO_REG, 0x4b} }, - {"udivw", { 2, "", GEN_TO_REG, 0x49} }, - {"modw", { 2, "", GEN_TO_REG, 0x4c} }, - {"umodw", { 2, "", GEN_TO_REG, 0x4d} }, - - - {"addf", { 2, "", 1, 0x50} }, - {"addd", { 2, "", 1, 0x51} }, - {"subf", { 2, "", 1, 0x52} }, - {"subd", { 2, "", 1, 0x53} }, - {"mulf", { 2, "", 1, 0x56} }, - {"muld", { 2, "", 1, 0x57} }, - {"divf", { 2, "", 1, 0x58} }, - {"divd", { 2, "", 1, 0x59} }, - - - {"cmpb", { 2, "", UNKNOWN, 0x61} }, - {"cmph", { 2, "", UNKNOWN, 0x62} }, - {"cmpw", { 2, "", UNKNOWN, 0x60} }, - {"ucmpb", { 2, "", UNKNOWN, 0x66} }, - /* WHY no "ucmph"??? */ - {"ucmpw", { 2, "", UNKNOWN, 0x65} }, - {"xchw", { 2, "", UNKNOWN, 0x0f} }, - - - {"andw", { 2, "", GEN_TO_REG, 0x30} }, - {"orw", { 2, "", GEN_TO_REG, 0x31} }, - {"xorw", { 2, "", GEN_TO_REG, 0x32} }, - {"bicw", { 2, "", GEN_TO_REG, 0x33} }, - {"lshlw", { 2, "", GEN_TO_REG, 0x38} }, - {"ashlw", { 2, "", GEN_TO_REG, 0x3a} }, - {"ashll", { 2, "", GEN_TO_REG, 0x3c} }, - {"ashrw", { 2, "", GEN_TO_REG, 0x3b} }, - {"ashrl", { 2, "", GEN_TO_REG, 0x3d} }, - {"rotlw", { 2, "", GEN_TO_REG, 0x3e} }, - {"rotrw", { 2, "", GEN_TO_REG, 0x3f} }, - - /* push and pop insns are "going away next release". */ - {"pushw", { 2, "", GEN_TO_REG, 0x0c} }, - {"popw", { 2, "", (0x1|0x8|0x10), 0x0d} }, - {"pusha", { 2, "", (0x8|0x10), 0x0e} }, - - {"bitsw", { 2, "", UNKNOWN, 0x35} }, - {"bitcw", { 2, "", UNKNOWN, 0x36} }, - /* some kind of ibra/dbra insns??*/ - {"icmpw", { 2, "", UNKNOWN, 0x67} }, - {"dcmpw", { 2, "", (1|4|0x20|0x80|0x400|0x1000), 0x69} },/*FIXME*/ - {"acmpw", { 2, "", 1, 0x6b} }, - - /* Call is written as a 1-op insn, but is always (dis)assembled as a 2-op - insn with a 2nd op of tr14. The assembler will have to grok this. */ - {"call", { 2, "", GEN_TO_REG, 0x04} }, - {"call", { 1, "", GEN_TO_REG, 0x04} }, - - {"callk", { 1, "", UNKNOWN, 0x06} },/* system call?*/ - /* Ret is usually written as a 0-op insn, but gets disassembled as a - 1-op insn. The operand is always tr15. */ - {"ret", { 0, "", UNKNOWN, 0x09} }, - {"ret", { 1, "", UNKNOWN, 0x09} }, - {"adsf", { 2, "", (1|2|4), 0x08} }, - {"retd", { 2, "", UNKNOWN, 0x0a} }, - {"btc", { 2, "", UNKNOWN, 0x01} }, - {"bfc", { 2, "", UNKNOWN, 0x02} }, - /* Careful: halt is 0x00000000. Jump must have some other (mode?)bit set?? */ - {"jump", { 1, "", UNKNOWN, 0x00} }, - {"btp", { 2, "", UNKNOWN, 0xf00} }, - /* read control-stack pointer is another 1-or-2 operand insn. */ - {"rcsp", { 2, "", UNKNOWN, 0x01f} }, - {"rcsp", { 1, "", UNKNOWN, 0x01f} } -}; - -/* end: pyramid.opcode.h */ -/* One day I will have to take the time to find out what operands - are valid for these insns, and guess at what they mean. - - I can't imagine what the "I???" insns (iglob, etc) do. - - the arithmetic-sounding insns ending in "p" sound awfully like BCD - arithmetic insns: - dshlp -> Decimal SHift Left Packed - dshrp -> Decimal SHift Right Packed - and cvtlp would be convert long to packed. - I have no idea how the operands are interpreted; but having them be - a long register with (address, length) of an in-memory packed BCD operand - would not be surprising. - They are unlikely to be a packed bcd string: 64 bits of long give - is only 15 digits+sign, which isn't enough for COBOL. - */ -#if 0 - {"wcsp", { 2, "", UNKNOWN, 0x00} }, /*write csp?*/ - /* The OSx Operating System Porting Guide claims SSL does things - with tr12 (a register reserved to it) to do with static block-structure - references. SSL=Set Static Link? It's "Going away next release". */ - {"ssl", { 2, "", UNKNOWN, 0x00} }, - {"ccmps", { 2, "", UNKNOWN, 0x00} }, - {"lcd", { 2, "", UNKNOWN, 0x00} }, - {"uemul", { 2, "", UNKNOWN, 0x00} }, /*unsigned emul*/ - {"srf", { 2, "", UNKNOWN, 0x00} }, /*Gidget time???*/ - {"mnegp", { 2, "", UNKNOWN, 0x00} }, /move-neg phys?*/ - {"ldp", { 2, "", UNKNOWN, 0x00} }, /*load phys?*/ - {"ldti", { 2, "", UNKNOWN, 0x00} }, - {"ldb", { 2, "", UNKNOWN, 0x00} }, - {"stp", { 2, "", UNKNOWN, 0x00} }, - {"stti", { 2, "", UNKNOWN, 0x00} }, - {"stb", { 2, "", UNKNOWN, 0x00} }, - {"stu", { 2, "", UNKNOWN, 0x00} }, - {"addp", { 2, "", UNKNOWN, 0x00} }, - {"subp", { 2, "", UNKNOWN, 0x00} }, - {"mulp", { 2, "", UNKNOWN, 0x00} }, - {"divp", { 2, "", UNKNOWN, 0x00} }, - {"dshlp", { 2, "", UNKNOWN, 0x00} }, /* dec shl packed? */ - {"dshrp", { 2, "", UNKNOWN, 0x00} }, /* dec shr packed? */ - {"movs", { 2, "", UNKNOWN, 0x00} }, /*move (string?)?*/ - {"cmpp", { 2, "", UNKNOWN, 0x00} }, /* cmp phys?*/ - {"cmps", { 2, "", UNKNOWN, 0x00} }, /* cmp (string?)?*/ - {"cvtlp", { 2, "", UNKNOWN, 0x00} }, /* cvt long to p??*/ - {"cvtpl", { 2, "", UNKNOWN, 0x00} }, /* cvt p to l??*/ - {"dintr", { 2, "", UNKNOWN, 0x00} }, /* ?? intr ?*/ - {"rphysw", { 2, "", UNKNOWN, 0x00} }, /* read phys word?*/ - {"wphysw", { 2, "", UNKNOWN, 0x00} }, /* write phys word?*/ - {"cmovs", { 2, "", UNKNOWN, 0x00} }, - {"rsubw", { 2, "", UNKNOWN, 0x00} }, - {"bicpsw", { 2, "", UNKNOWN, 0x00} }, /* clr bit in psw? */ - {"bispsw", { 2, "", UNKNOWN, 0x00} }, /* set bit in psw? */ - {"eio", { 2, "", UNKNOWN, 0x00} }, /* ?? ?io ? */ - {"callp", { 2, "", UNKNOWN, 0x00} }, /* call phys?*/ - {"callr", { 2, "", UNKNOWN, 0x00} }, - {"lpcxt", { 2, "", UNKNOWN, 0x00} }, /*load proc context*/ - {"rei", { 2, "", UNKNOWN, 0x00} }, /*ret from intrpt*/ - {"rport", { 2, "", UNKNOWN, 0x00} }, /*read-port?*/ - {"rtod", { 2, "", UNKNOWN, 0x00} }, /*read-time-of-day?*/ - {"ssi", { 2, "", UNKNOWN, 0x00} }, - {"vtpa", { 2, "", UNKNOWN, 0x00} }, /*virt-to-phys-addr?*/ - {"wicl", { 2, "", UNKNOWN, 0x00} }, /* write icl ? */ - {"wport", { 2, "", UNKNOWN, 0x00} }, /*write-port?*/ - {"wtod", { 2, "", UNKNOWN, 0x00} }, /*write-time-of-day?*/ - {"flic", { 2, "", UNKNOWN, 0x00} }, - {"iglob", { 2, "", UNKNOWN, 0x00} }, /* I global? */ - {"iphys", { 2, "", UNKNOWN, 0x00} }, /* I physical? */ - {"ipid", { 2, "", UNKNOWN, 0x00} }, /* I pid? */ - {"ivect", { 2, "", UNKNOWN, 0x00} }, /* I vector? */ - {"lamst", { 2, "", UNKNOWN, 0x00} }, - {"tio", { 2, "", UNKNOWN, 0x00} }, -#endif |