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author | Fred Fish <fnf@specifix.com> | 1997-01-04 01:39:30 +0000 |
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committer | Fred Fish <fnf@specifix.com> | 1997-01-04 01:39:30 +0000 |
commit | 872dc6f0bcc4992b5fdefa11ea41df4cada72ca2 (patch) | |
tree | ecf546fd17b065ddd846de1b4dcb46a397965e9d /opcodes/tic80-opc.c | |
parent | 28eb95aa337f72b4a87cdd2a2d6aff9cc0984a4b (diff) | |
download | gdb-872dc6f0bcc4992b5fdefa11ea41df4cada72ca2.zip gdb-872dc6f0bcc4992b5fdefa11ea41df4cada72ca2.tar.gz gdb-872dc6f0bcc4992b5fdefa11ea41df4cada72ca2.tar.bz2 |
* ppc-opc.c (powerpc_operands): Make comment match the
actual fields (no shift field).
* sparc-opc.c (sparc_opcodes): Document why this cannot be "const".
* tic80-dis.c (print_insn_tic80): Replace abort stub with a
partial implementation, work in progress.
* tic80-opc.c (tic80_operands): Begin construction operands table.
(tic80_opcodes): Continue populating opcodes table and start
filling in the operand indices.
(tic80_num_opcodes): Add this.
Diffstat (limited to 'opcodes/tic80-opc.c')
-rw-r--r-- | opcodes/tic80-opc.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/opcodes/tic80-opc.c b/opcodes/tic80-opc.c index 37799c4..96931b5 100644 --- a/opcodes/tic80-opc.c +++ b/opcodes/tic80-opc.c @@ -17,5 +17,237 @@ You should have received a copy of the GNU General Public License along with this file; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include <stdio.h> #include "ansidecl.h" #include "opcode/tic80.h" + +/* This file holds the TMS320C80 (MVP) opcode table. The table is + strictly constant data, so the compiler should be able to put it in + the .text section. + + This file also holds the operand table. All knowledge about + inserting operands into instructions and vice-versa is kept in this + file. */ + + +/* The operands table. The fields are: + + bits, shift, insertion function, extraction function, flags + */ + +const struct tic80_operand tic80_operands[] = +{ + + /* The zero index is used to indicate the end of the list of operands. */ + +#define UNUSED (0) + { 0, 0, 0, 0, 0 }, + + /* Short signed immediate value in bits 14-0. */ + +#define SSI (UNUSED + 1) + { 15, 0, NULL, NULL, TIC80_OPERAND_SIGNED }, + + /* Short unsigned immediate value in bits 14-0 */ + +#define SUI (SSI + 1) + { 15, 0, NULL, NULL, 0 }, + + /* Short unsigned bitfield in bits 14-0. We distinguish this + from a regular unsigned immediate value only for the convenience + of the disassembler and the user. */ + +#define SUBF (SUI + 1) + { 15, 0, NULL, NULL, TIC80_OPERAND_BITFIELD }, + + /* Long signed immediate in following 32 bit word */ + +#define LSI (SUBF + 1) + { 32, 0, NULL, NULL, TIC80_OPERAND_SIGNED }, + + /* Long unsigned immediate in following 32 bit word */ + +#define LUI (LSI + 1) + { 32, 0, NULL, NULL, 0 }, + + /* Long unsigned bitfield in following 32 bit word. We distinguish + this from a regular unsigned immediate value only for the + convenience of the disassembler and the user. */ + +#define LUBF (LUI + 1) + { 32, 0, NULL, NULL, TIC80_OPERAND_BITFIELD }, + + /* Register in bits 4-0 */ + +#define REG0 (LUBF + 1) + { 5, 0, NULL, NULL, TIC80_OPERAND_GPR }, + + /* Register in bits 26-22 */ + +#define REG22 (REG0 + 1) + { 5, 22, NULL, NULL, TIC80_OPERAND_GPR }, + + /* Register in bits 31-27 */ + +#define REG27 (REG22 + 1) + { 5, 27, NULL, NULL, TIC80_OPERAND_GPR }, + +}; + +const int tic80_num_operands = sizeof (tic80_operands)/sizeof(*tic80_operands); + + +/* Macros used to generate entries for the opcodes table. */ + +#define FIXME 0 + +/* Short-Immediate Format Instructions */ +#define OP_SI(x) (((x) & 0x7F) << 15) +#define MASK_SI OP_SI(0x7F) +#define MASK_SI_M OP_SI(0x7B) /* Short-Immediate with embedded M bit */ + +/* Long-Immediate Format Instructions */ +#define OP_LI(x) (((x) & 0x3FF) << 12) +#define MASK_LI OP_LI(0x3FF) +#define MASK_LI_M OP_LI(0x3F7) /* Long-Immediate with embedded M bit */ + +/* Register Format Instructions */ +#define OP_REG(x) OP_LI(x) /* For readability */ +#define MASK_REG MASK_LI /* For readability */ +#define MASK_REG_M MASK_LI_M /* For readability */ + +const struct tic80_opcode tic80_opcodes[] = { + + /* Signed integer ADD */ + + {"add", OP_SI(0x58), MASK_SI, FMT_SI, {SSI, REG22, REG27} }, + {"add", OP_LI(0x3B1), MASK_LI, FMT_LI, {LSI, REG22, REG27} }, + {"add", OP_REG(0x3B0), MASK_REG, FMT_REG, {REG0, REG22, REG27} }, + + /* Unsigned integer ADD */ + + {"addu", OP_SI(0x59), MASK_SI, FMT_SI, {SSI, REG22, REG27} }, + {"addu", OP_LI(0x3B3), MASK_LI, FMT_LI, {LSI, REG22, REG27} }, + {"addu", OP_REG(0x3B2), MASK_REG, FMT_REG, {REG0, REG22, REG27} }, + + /* Bitwise AND */ + + {"and", OP_SI(0x11), MASK_SI, FMT_SI, {SUBF, REG22, REG27} }, + {"and", OP_LI(0x323), MASK_LI, FMT_LI, {LUBF, REG22, REG27} }, + {"and", OP_REG(0x322), MASK_REG, FMT_REG, {REG0, REG22, REG27} }, + + {"and.tt", OP_SI(0x11), MASK_SI, FMT_SI, {SUBF, REG22, REG27} }, + {"and.tt", OP_LI(0x323), MASK_LI, FMT_LI, {LUBF, REG22, REG27} }, + {"and.tt", OP_REG(0x322), MASK_REG, FMT_REG, {REG0, REG22, REG27} }, + + /* Bitwise AND with ones complement of both sources */ + + {"and.ff", OP_SI(0x18), MASK_SI, FMT_SI, {SUBF, REG22, REG27} }, + {"and.ff", OP_LI(0x331), MASK_LI, FMT_LI, {LUBF, REG22, REG27} }, + {"and.ff", OP_REG(0x330), MASK_REG, FMT_REG, {REG0, REG22, REG27} }, + + /* Bitwise AND with ones complement of source 1 */ + + {"and.ft", OP_SI(0x14), MASK_SI, FMT_SI, {SUBF, REG22, REG27} }, + {"and.ft", OP_LI(0x329), MASK_LI, FMT_LI, {LUBF, REG22, REG27} }, + {"and.ft", OP_REG(0x328), MASK_REG, FMT_REG, {REG0, REG22, REG27} }, + + /* Bitwise AND with ones complement of source 2 */ + + {"and.tf", OP_SI(0x12), MASK_SI, FMT_SI, {SUBF, REG22, REG27} }, + {"and.tf", OP_LI(0x325), MASK_LI, FMT_LI, {LUBF, REG22, REG27} }, + {"and.tf", OP_REG(0x324), MASK_REG, FMT_REG, {REG0, REG22, REG27} }, + + /* WORK IN PROGRESS BELOW THIS POINT */ + + {"brcr", OP_LI(0x30D), MASK_LI, FMT_LI, FIXME}, + {"brcr", OP_REG(0x30C), MASK_REG, FMT_REG, FIXME}, + {"brcr", OP_SI(0x6), MASK_SI, FMT_SI, FIXME}, + {"cmnd", OP_LI(0x305), MASK_LI, FMT_LI, FIXME}, + {"cmnd", OP_REG(0x304), MASK_REG, FMT_REG, FIXME}, + {"cmnd", OP_SI(0x2), MASK_SI, FMT_SI, FIXME}, + {"illop0", OP_SI(0), MASK_SI, FMT_SI, FIXME}, + {"ld", OP_LI(0x345), MASK_LI_M, FMT_LI, FIXME}, + {"ld", OP_REG(0x344), MASK_REG_M, FMT_REG, FIXME}, + {"ld", OP_SI(0x22), MASK_SI_M, FMT_SI, FIXME}, + {"ld.b", OP_LI(0x341), MASK_LI_M, FMT_LI, FIXME}, + {"ld.b", OP_REG(0x340), MASK_REG_M, FMT_REG, FIXME}, + {"ld.b", OP_SI(0x20), MASK_SI_M, FMT_SI, FIXME}, + {"ld.d", OP_LI(0x347), MASK_LI_M, FMT_LI, FIXME}, + {"ld.d", OP_REG(0x346), MASK_REG_M, FMT_REG, FIXME}, + {"ld.d", OP_SI(0x23), MASK_SI_M, FMT_SI, FIXME}, + {"ld.h", OP_LI(0x343), MASK_LI_M, FMT_LI, FIXME}, + {"ld.h", OP_REG(0x342), MASK_REG_M, FMT_REG, FIXME}, + {"ld.h", OP_SI(0x21), MASK_SI_M, FMT_SI, FIXME}, + {"ld.u", OP_LI(0x355), MASK_LI_M, FMT_LI, FIXME}, + {"ld.u", OP_REG(0x354), MASK_REG_M, FMT_REG, FIXME}, + {"ld.u", OP_SI(0x2A), MASK_SI_M, FMT_SI, FIXME}, + {"ld.ub", OP_LI(0x351), MASK_LI_M, FMT_LI, FIXME}, + {"ld.ub", OP_REG(0x350), MASK_REG_M, FMT_REG, FIXME}, + {"ld.ub", OP_SI(0x28), MASK_SI_M, FMT_SI, FIXME}, + {"ld.ud", OP_LI(0x357), MASK_LI_M, FMT_LI, FIXME}, + {"ld.ud", OP_REG(0x356), MASK_REG_M, FMT_REG, FIXME}, + {"ld.ud", OP_SI(0x2B), MASK_SI_M, FMT_SI, FIXME}, + {"ld.uh", OP_LI(0x353), MASK_LI_M, FMT_LI, FIXME}, + {"ld.uh", OP_REG(0x352), MASK_REG_M, FMT_REG, FIXME}, + {"ld.uh", OP_SI(0x29), MASK_SI_M, FMT_SI, FIXME}, + {"or.ff", OP_LI(0x33D), MASK_LI, FMT_LI, FIXME}, + {"or.ff", OP_REG(0x33C), MASK_REG, FMT_REG, FIXME}, + {"or.ff", OP_SI(0x1E), MASK_SI, FMT_SI, FIXME}, + {"or.ft", OP_LI(0x33B), MASK_LI, FMT_LI, FIXME}, + {"or.ft", OP_REG(0x33A), MASK_REG, FMT_REG, FIXME}, + {"or.ft", OP_SI(0x1D), MASK_SI, FMT_SI, FIXME}, + {"or.tf", OP_LI(0x337), MASK_LI, FMT_LI, FIXME}, + {"or.tf", OP_REG(0x336), MASK_REG, FMT_REG, FIXME}, + {"or.tf", OP_SI(0x1B), MASK_SI, FMT_SI, FIXME}, + {"or.tt", OP_LI(0x32F), MASK_LI, FMT_LI, FIXME}, + {"or.tt", OP_REG(0x32E), MASK_REG, FMT_REG, FIXME}, + {"or.tt", OP_SI(0x17), MASK_SI, FMT_SI, FIXME}, + {"rdcr", OP_LI(0x309), MASK_LI, FMT_LI, FIXME}, + {"rdcr", OP_REG(0x308), MASK_REG, FMT_REG, FIXME}, + {"rdcr", OP_SI(0x4), MASK_SI, FMT_SI, FIXME}, + {"shift.dm", OP_REG(0x312), MASK_REG, FMT_REG, FIXME}, + {"shift.dm", OP_SI(0x9), MASK_SI, FMT_SI, FIXME}, + {"shift.ds", OP_REG(0x314), MASK_REG, FMT_REG, FIXME}, + {"shift.ds", OP_SI(0xA), MASK_SI, FMT_SI, FIXME}, + {"shift.dz", OP_REG(0x310), MASK_REG, FMT_REG, FIXME}, + {"shift.dz", OP_SI(0x8), MASK_SI, FMT_SI, FIXME}, + {"shift.em", OP_REG(0x318), MASK_REG, FMT_REG, FIXME}, + {"shift.em", OP_SI(0xC), MASK_SI, FMT_SI, FIXME}, + {"shift.es", OP_REG(0x31A), MASK_REG, FMT_REG, FIXME}, + {"shift.es", OP_SI(0xD), MASK_SI, FMT_SI, FIXME}, + {"shift.ez", OP_REG(0x316), MASK_REG, FMT_REG, FIXME}, + {"shift.ez", OP_SI(0xB), MASK_SI, FMT_SI, FIXME}, + {"shift.im", OP_REG(0x31E), MASK_REG, FMT_REG, FIXME}, + {"shift.im", OP_SI(0xF), MASK_SI, FMT_SI, FIXME}, + {"shift.iz", OP_REG(0x31C), MASK_REG, FMT_REG, FIXME}, + {"shift.iz", OP_SI(0xE), MASK_SI, FMT_SI, FIXME}, + {"st", OP_LI(0x365), MASK_LI_M, FMT_LI, FIXME}, + {"st", OP_REG(0x364), MASK_REG_M, FMT_REG, FIXME}, + {"st", OP_SI(0x32), MASK_SI_M, FMT_SI, FIXME}, + {"st.b", OP_LI(0x361), MASK_LI_M, FMT_LI, FIXME}, + {"st.b", OP_REG(0x360), MASK_REG_M, FMT_REG, FIXME}, + {"st.b", OP_SI(0x30), MASK_SI_M, FMT_SI, FIXME}, + {"st.d", OP_LI(0x367), MASK_LI_M, FMT_LI, FIXME}, + {"st.d", OP_REG(0x366), MASK_REG_M, FMT_REG, FIXME}, + {"st.d", OP_SI(0x33), MASK_SI_M, FMT_SI, FIXME}, + {"st.h", OP_LI(0x363), MASK_LI_M, FMT_LI, FIXME}, + {"st.h", OP_REG(0x362), MASK_REG_M, FMT_REG, FIXME}, + {"st.h", OP_SI(0x31), MASK_SI_M, FMT_SI, FIXME}, + {"swcr", OP_LI(0x30B), MASK_LI, FMT_LI, FIXME}, + {"swcr", OP_REG(0x30A), MASK_REG, FMT_REG, FIXME}, + {"swcr", OP_SI(0x5), MASK_SI, FMT_SI, FIXME}, + {"trap", OP_LI(0x303), MASK_LI, FMT_LI, FIXME}, + {"trap", OP_REG(0x302), MASK_REG, FMT_REG, FIXME}, + {"trap", OP_SI(0x1), MASK_SI, FMT_SI, FIXME}, + {"xnor", OP_LI(0x333), MASK_LI, FMT_LI, FIXME}, + {"xnor", OP_REG(0x332), MASK_REG, FMT_REG, FIXME}, + {"xnor", OP_SI(0x19), MASK_SI, FMT_SI, FIXME}, + {"xor", OP_LI(0x32D), MASK_LI, FMT_LI, FIXME}, + {"xor", OP_REG(0x32C), MASK_REG, FMT_REG, FIXME}, + {"xor", OP_SI(0x16), MASK_SI, FMT_SI, FIXME}, + +}; + +const int tic80_num_opcodes = sizeof (tic80_opcodes) / sizeof (tic80_opcodes[0]); + |