-#define DEFINE_TABLE
-#include "h8300-opcode.h"
-
-#define MAXSAME 14
-
-static struct h8_opcode * h8_opcodes_sorted[256][MAXSAME];
-
-/* Run through the opcodes and sort them into order to make them easy
- to disassemble
- */
-static void
-DEFUN_VOID(bfd_h8_disassemble_init)
-{
- unsigned int i;
- struct h8_opcode *p;
-
- for (p = h8_opcodes; p->name; p++) {
- int where = 0;
- int n1 = 0;
- int n2 = 0;
- int n3 = 0;
- int n4= 0;
- if ((int)p->data.nib[0] < 16) {
- n1 =(int) p->data.nib[0] ;
- } else n1 = 0;
- if ((int)p->data.nib[1] < 16) {
- n2 = (int) p->data.nib[1];
- }else n2 = 0;
-
- for (i = 0; i < MAXSAME; i++) {
- int j = n1 * 16 + n2;
- if (h8_opcodes_sorted[j][i] == (struct h8_opcode *)NULL) {
- h8_opcodes_sorted[j][i] = p;
- break;
- }
- }
-
- if (i==MAXSAME)abort();
-
- /* Just make sure there are an even number of nibbles in it, and
- that the count is the same s the length */
- for (i = 0; p->data.nib[i] != E; i++) ;
- if (i & 1) abort();
- if (i/2 != p->length) abort();
- }
- for (i = 0; i < 256; i++)
- {
- if (h8_opcodes_sorted[i][0])
- p = h8_opcodes_sorted[i][0];
- else h8_opcodes_sorted[i][0] = p;
- }
-}
-
-
-unsigned int
-DEFUN(bfd_h8_disassemble,(addr, data, stream),
-bfd_vma addr AND
-CONST bfd_byte *data AND
-FILE *stream)
-{
- /* Find the first entry in the table for this opcode */
- CONST static char *regnames[] = {
- "r0h","r1h","r2h","r3h","r4h","r5h","r6h","r7h",
- "r0l","r1l","r2l","r3l","r4l","r5l","r6l","r7l" };
-
- int rs = 0;
- int rd = 0;
- int rdisp = 0;
- int abs = 0;
- struct h8_opcode **p = h8_opcodes_sorted[(unsigned)(data[0])];
- struct h8_opcode *q;
-
- /* Find the exact opcode/arg combo */
- while (*p) {
- op_type *nib;
- unsigned int len = 0;
- q = *p++;
- nib =q->data.nib;
- while (*nib != E) {
- op_type looking_for = *nib;
- int thisnib = data[len>>1] ;
- thisnib = (len & 1) ? (thisnib & 0xf) : ((thisnib >> 4) & 0xf);
- if ((int)looking_for & (int)B31) {
- if (((int)thisnib & 0x8) ==0) goto fail;
- looking_for = (op_type)((int)looking_for & ~(int)B31);
- }
- if ((int)looking_for & (int)B30) {
- if (((int)thisnib & 0x8) !=0) goto fail;
- looking_for = (op_type)((int)looking_for & ~(int)B30);
- }
- switch (looking_for) {
- case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
- case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
- if ((int)looking_for != thisnib) goto fail;
- break;
- case ABS16SRC:
- case ABS16DST:
- case DISPSRC:
- case DISPDST:
- case IMM16:
- abs = (data[len>>1]) * 256 + data[(len+2)>>1];
- len+=3;
- nib+=3;
- break;
- case DISPREG:
- rdisp = thisnib;
- break;
- case KBIT:
- abs = thisnib == 0x8 ? 2:1;
- break;
- case IMM8:
- case ABS8SRC:
- case ABS8DST:
- case DISP8:
- abs= data[len>>1];
- len++;
- nib++;
- break;
- case IMM3:
- abs = thisnib ;
- break;
- case RS8:
- case RS16:
- case RSINC:
- case RSIND:
- rs = thisnib;
- break;
- case RD16:
- case RDDEC:
- case RD8:
- case RDIND:
- rd = thisnib;
- break;
- default:
- fprintf(stream, "Dont understand \n");
- goto found;
- }
- len++;
- nib++;
- }
- goto found;
- fail:
- ;
-
- }
- fprintf(stream, "%02x %02x .word\tH'%x,H'%x",
- data[0], data[1],
- data[0], data[1]);
- return 2;
- found:;
- { int i;
-
- for (i = 0; i < q->length; i++) {
- fprintf(stream, "%02x ", data[i]);
- }
- for (; i < 6; i++) {
- fprintf(stream, " ");
- }
- }
- fprintf(stream, "%s\t",q->name);
- /* Now print out the args */
- {
- op_type *args = q->args.nib;
- int hadone = 0;
- while (*args != E) {
- if (hadone)
- fprintf(stream, ",");
- switch ((int)(*args) & ~((int)B30|(int)B31)) {
- case IMM16:
- case IMM8:
- case IMM3:
- fprintf(stream, "#0x%x", (unsigned)abs); break;
- case RD8:
- fprintf(stream, "%s", regnames[rd]); break;
- case RS8:
- fprintf(stream, "%s",regnames[rs]); break;
- case RD16:
- fprintf(stream, "r%d", rd& 0x7); break;
- case RS16:
- fprintf(stream, "r%d", rs & 0x7); break;
- case RSINC:
- fprintf(stream, "@r%d+", rs & 0x7); break;
- case RDDEC:
- fprintf(stream, "@-r%d", rd & 0x7); break;
- case RDIND:
- fprintf(stream, "@r%d", rd & 0x7); break;
- case RSIND:
- fprintf(stream, "@r%d",rs & 0x7); break;
- case ABS8SRC:
- case ABS16SRC:
- case ABS16DST:
- case ABS8DST:
- fprintf(stream, "@0x%x", (unsigned)abs); break;
- case DISP8:
- fprintf(stream, ".%s%d (%x)",(char)abs>0 ? "+" :"", (char)abs,
- addr + (char)abs);
- break;
- case DISPSRC:
- case DISPDST:
- fprintf(stream, "@(0x%x,r%d)", abs, rdisp & 0x7); break;
- case CCR:
- fprintf(stream, "ccr"); break;
- case KBIT:
- fprintf(stream, "#%d",abs); break;
- default:
- abort();
- }
- hadone = 1;
- args++;
- }
- }
- return q->length;
-}
-
-
-
-unsigned int DEFUN(print_insn_h8300,(addr, data, file),
-bfd_vma addr AND
-CONST char *data AND
-PTR file)
-{
- static boolean init;
- if (!init) {
- bfd_h8_disassemble_init();
- init= 1;
- }
-
- return bfd_h8_disassemble(addr, (bfd_byte *)data, file);
-}
-
-/*
projects / binutils.git / blobdiff