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Diffstat (limited to 'sys/gnu/misc/aic7xxx/aic7xxx.c')
-rw-r--r--sys/gnu/misc/aic7xxx/aic7xxx.c584
1 files changed, 0 insertions, 584 deletions
diff --git a/sys/gnu/misc/aic7xxx/aic7xxx.c b/sys/gnu/misc/aic7xxx/aic7xxx.c
deleted file mode 100644
index 417a352762d3..000000000000
--- a/sys/gnu/misc/aic7xxx/aic7xxx.c
+++ /dev/null
@@ -1,584 +0,0 @@
-/*
- * Adaptec 274x device driver for Linux.
- * Copyright (c) 1994 The University of Calgary Department of Computer Science.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Comments are started by `#' and continue to the end of the line; lines
- * may be of the form:
- *
- * <label>*
- * <label>* <undef-sym> = <value>
- * <label>* <opcode> <operand>*
- *
- * A <label> is an <undef-sym> ending in a colon. Spaces, tabs, and commas
- * are token separators.
- */
-
-/* #define _POSIX_SOURCE 1 */
-#define _POSIX_C_SOURCE 2
-
-#include <ctype.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#define MEMORY 512 /* 2^9 29-bit words */
-#define MAXLINE 1024
-#define MAXTOKEN 32
-#define ADOTOUT "a.out"
-#define NOVALUE -1
-
-/*
- * AIC-7770 register definitions
- */
-#define R_SINDEX 0x65
-#define R_ALLONES 0x69
-#define R_ALLZEROS 0x6a
-#define R_NONE 0x6a
-
-static
-char sccsid[] =
- "@(#)aic7770.c 1.10 94/07/22 jda";
-
-int debug;
-int lineno, LC;
-char *filename;
-FILE *ifp, *ofp;
-unsigned char M[MEMORY][4];
-
-void error(char *s)
-{
- fprintf(stderr, "%s: %s at line %d\n", filename, s, lineno);
- exit(EXIT_FAILURE);
-}
-
-void *Malloc(size_t size)
-{
- void *p = malloc(size);
- if (!p)
- error("out of memory");
- return(p);
-}
-
-void *Realloc(void *ptr, size_t size)
-{
- void *p = realloc(ptr, size);
- if (!p)
- error("out of memory");
- return(p);
-}
-
-char *Strdup(char *s)
-{
- char *p = (char *)Malloc(strlen(s) + 1);
- strcpy(p, s);
- return(p);
-}
-
-typedef struct sym_t {
- struct sym_t *next; /* MUST BE FIRST */
- char *name;
- int value;
- int npatch, *patch;
-} sym_t;
-
-sym_t *head;
-
-void define(char *name, int value)
-{
- sym_t *p, *q;
-
- for (p = head, q = (sym_t *)&head; p; p = p->next) {
- if (!strcmp(p->name, name))
- error("redefined symbol");
- q = p;
- }
-
- p = q->next = (sym_t *)Malloc(sizeof(sym_t));
- p->next = NULL;
- p->name = Strdup(name);
- p->value = value;
- p->npatch = 0;
- p->patch = NULL;
-
- if (debug) {
- fprintf(stderr, "\"%s\" ", p->name);
- if (p->value != NOVALUE)
- fprintf(stderr, "defined as 0x%x\n", p->value);
- else
- fprintf(stderr, "undefined\n");
- }
-}
-
-sym_t *lookup(char *name)
-{
- sym_t *p;
-
- for (p = head; p; p = p->next)
- if (!strcmp(p->name, name))
- return(p);
- return(NULL);
-}
-
-void patch(sym_t *p, int location)
-{
- p->npatch += 1;
- p->patch = (int *)Realloc(p->patch, p->npatch * sizeof(int *));
-
- p->patch[p->npatch - 1] = location;
-}
-
-void backpatch(void)
-{
- int i;
- sym_t *p;
-
- for (p = head; p; p = p->next) {
-
- if (p->value == NOVALUE) {
- fprintf(stderr,
- "%s: undefined symbol \"%s\"\n",
- filename, p->name);
- exit(EXIT_FAILURE);
- }
-
- if (p->npatch) {
- if (debug)
- fprintf(stderr,
- "\"%s\" (0x%x) patched at",
- p->name, p->value);
-
- for (i = 0; i < p->npatch; i++) {
- M[p->patch[i]][0] &= ~1;
- M[p->patch[i]][0] |= ((p->value >> 8) & 1);
- M[p->patch[i]][1] = p->value & 0xff;
-
- if (debug)
- fprintf(stderr, " 0x%x", p->patch[i]);
- }
-
- if (debug)
- fputc('\n', stderr);
- }
- }
-}
-
-/*
- * Output words in byte-reversed order (least significant first)
- * since the sequencer RAM is loaded that way.
- */
-void output(FILE *fp)
-{
- int i;
-
- for (i = 0; i < LC; i++)
- fprintf(fp, "\t0x%02x, 0x%02x, 0x%02x, 0x%02x,\n",
- M[i][3],
- M[i][2],
- M[i][1],
- M[i][0]);
-}
-
-char **getl(int *n)
-{
- int i;
- char *p;
- static char buf[MAXLINE];
- static char *a[MAXTOKEN];
-
- i = 0;
-
- while (fgets(buf, sizeof(buf), ifp)) {
-
- lineno += 1;
-
- if (buf[strlen(buf)-1] != '\n')
- error("line too long");
-
- p = strchr(buf, '#');
- if (p)
- *p = '\0';
-
- for (p = strtok(buf, ", \t\n"); p; p = strtok(NULL, ", \t\n"))
- if (i < MAXTOKEN-1)
- a[i++] = p;
- else
- error("too many tokens");
- if (i) {
- *n = i;
- return(a);
- }
- }
- return(NULL);
-}
-
-#define A 0x8000 /* `A'ccumulator ok */
-#define I 0x4000 /* use as immediate value */
-#define SL 0x2000 /* shift left */
-#define SR 0x1000 /* shift right */
-#define RL 0x0800 /* rotate left */
-#define RR 0x0400 /* rotate right */
-#define LO 0x8000 /* lookup: ori-{jmp,jc,jnc,call} */
-#define LA 0x4000 /* lookup: and-{jz,jnz} */
-#define LX 0x2000 /* lookup: xor-{je,jne} */
-#define NA -1 /* not applicable */
-
-struct {
- char *name;
- int n; /* number of operands, including opcode */
- unsigned int op; /* immediate or L?|pos_from_0 */
- unsigned int dest; /* NA, pos_from_0, or I|immediate */
- unsigned int src; /* NA, pos_from_0, or I|immediate */
- unsigned int imm; /* pos_from_0, A|pos_from_0, or I|immediate */
- unsigned int addr; /* NA or pos_from_0 */
- int fmt; /* instruction format - 1, 2, or 3 */
-} instr[] = {
-/*
- * N OP DEST SRC IMM ADDR FMT
- */
- "mov", 3, 1, 1, 2, I|0xff, NA, 1,
- "mov", 4, LO|2, NA, 1, I|0, 3, 3,
- "mvi", 3, 0, 1, I|R_ALLZEROS, A|2, NA, 1,
- "mvi", 4, LO|2, NA, I|R_ALLZEROS, 1, 3, 3,
- "not", 2, 2, 1, 1, I|0xff, NA, 1,
- "not", 3, 2, 1, 2, I|0xff, NA, 1,
- "and", 3, 1, 1, 1, A|2, NA, 1,
- "and", 4, 1, 1, 3, A|2, NA, 1,
- "or", 3, 0, 1, 1, A|2, NA, 1,
- "or", 4, 0, 1, 3, A|2, NA, 1,
- "or", 5, LO|3, NA, 1, 2, 4, 3,
- "xor", 3, 2, 1, 1, A|2, NA, 1,
- "xor", 4, 2, 1, 3, A|2, NA, 1,
- "nop", 1, 1, I|R_NONE, I|R_ALLZEROS, I|0xff, NA, 1,
- "inc", 2, 3, 1, 1, I|1, NA, 1,
- "inc", 3, 3, 1, 2, I|1, NA, 1,
- "dec", 2, 3, 1, 1, I|0xff, NA, 1,
- "dec", 3, 3, 1, 2, I|0xff, NA, 1,
- "jmp", 2, LO|0, NA, I|R_SINDEX, I|0, 1, 3,
- "jc", 2, LO|0, NA, I|R_SINDEX, I|0, 1, 3,
- "jnc", 2, LO|0, NA, I|R_SINDEX, I|0, 1, 3,
- "call", 2, LO|0, NA, I|R_SINDEX, I|0, 1, 3,
- "test", 5, LA|3, NA, 1, A|2, 4, 3,
- "cmp", 5, LX|3, NA, 1, A|2, 4, 3,
- "ret", 1, 1, I|R_NONE, I|R_ALLZEROS, I|0xff, NA, 1,
- "clc", 1, 3, I|R_NONE, I|R_ALLZEROS, I|1, NA, 1,
- "clc", 4, 3, 2, I|R_ALLZEROS, A|3, NA, 1,
- "stc", 1, 3, I|R_NONE, I|R_ALLONES, I|1, NA, 1,
- "stc", 2, 3, 1, I|R_ALLONES, I|1, NA, 1,
- "add", 3, 3, 1, 1, A|2, NA, 1,
- "add", 4, 3, 1, 3, A|2, NA, 1,
- "adc", 3, 4, 1, 1, A|2, NA, 1,
- "adc", 4, 4, 1, 3, A|2, NA, 1,
- "shl", 3, 5, 1, 1, SL|2, NA, 2,
- "shl", 4, 5, 1, 2, SL|3, NA, 2,
- "shr", 3, 5, 1, 1, SR|2, NA, 2,
- "shr", 4, 5, 1, 2, SR|3, NA, 2,
- "rol", 3, 5, 1, 1, RL|2, NA, 2,
- "rol", 4, 5, 1, 2, RL|3, NA, 2,
- "ror", 3, 5, 1, 1, RR|2, NA, 2,
- "ror", 4, 5, 1, 2, RR|3, NA, 2,
- /*
- * Extensions (note also that mvi allows A)
- */
- "clr", 2, 1, 1, I|R_ALLZEROS, I|0xff, NA, 1,
- 0
-};
-
-int eval_operand(char **a, int spec)
-{
- int i;
- unsigned int want = spec & (LO|LA|LX);
-
- static struct {
- unsigned int what;
- char *name;
- int value;
- } jmptab[] = {
- LO, "jmp", 8,
- LO, "jc", 9,
- LO, "jnc", 10,
- LO, "call", 11,
- LA, "jz", 15,
- LA, "jnz", 13,
- LX, "je", 14,
- LX, "jne", 12,
- };
-
- spec &= ~(LO|LA|LX);
-
- for (i = 0; i < sizeof(jmptab)/sizeof(jmptab[0]); i++)
- if (jmptab[i].what == want &&
- !strcmp(jmptab[i].name, a[spec]))
- {
- return(jmptab[i].value);
- }
-
- if (want)
- error("invalid jump");
-
- return(spec); /* "case 0" - no flags set */
-}
-
-int eval_sdi(char **a, int spec)
-{
- sym_t *p;
- unsigned val;
-
- if (spec == NA)
- return(NA);
-
- switch (spec & (A|I|SL|SR|RL|RR)) {
- case SL:
- case SR:
- case RL:
- case RR:
- if (isdigit(*a[spec &~ (SL|SR|RL|RR)]))
- val = strtol(a[spec &~ (SL|SR|RL|RR)], NULL, 0);
- else {
- p = lookup(a[spec &~ (SL|SR|RL|RR)]);
- if (!p)
- error("undefined symbol used");
- val = p->value;
- }
-
- switch (spec & (SL|SR|RL|RR)) { /* blech */
- case SL:
- if (val > 7)
- return(0xf0);
- return(((val % 8) << 4) |
- (val % 8));
- case SR:
- if (val > 7)
- return(0xf0);
- return(((val % 8) << 4) |
- (1 << 3) |
- ((8 - (val % 8)) % 8));
- case RL:
- return(val % 8);
- case RR:
- return((8 - (val % 8)) % 8);
- }
- case I:
- return(spec &~ I);
- case A:
- /*
- * An immediate field of zero selects
- * the accumulator. Vigorously object
- * if zero is given otherwise - it's
- * most likely an error.
- */
- spec &= ~A;
- if (!strcmp("A", a[spec]))
- return(0);
- if (isdigit(*a[spec]) &&
- strtol(a[spec], NULL, 0) == 0)
- {
- error("immediate value of zero selects accumulator");
- }
- /* falls through */
- case 0:
- if (isdigit(*a[spec]))
- return(strtol(a[spec], NULL, 0));
- p = lookup(a[spec]);
- if (p)
- return(p->value);
- error("undefined symbol used");
- }
-
- return(NA); /* shut the compiler up */
-}
-
-int eval_addr(char **a, int spec)
-{
- sym_t *p;
-
- if (spec == NA)
- return(NA);
- if (isdigit(*a[spec]))
- return(strtol(a[spec], NULL, 0));
-
- p = lookup(a[spec]);
-
- if (p) {
- if (p->value != NOVALUE)
- return(p->value);
- patch(p, LC);
- } else {
- define(a[spec], NOVALUE);
- p = lookup(a[spec]);
- patch(p, LC);
- }
-
- return(NA); /* will be patched in later */
-}
-
-int crack(char **a, int n)
-{
- int i;
- int I_imm, I_addr;
- int I_op, I_dest, I_src, I_ret;
-
- /*
- * Check for "ret" at the end of the line; remove
- * it unless it's "ret" alone - we still want to
- * look it up in the table.
- */
- I_ret = (strcmp(a[n-1], "ret") ? 0 : !0);
- if (I_ret && n > 1)
- n -= 1;
-
- for (i = 0; instr[i].name; i++) {
- /*
- * Look for match in table given constraints,
- * currently just the name and the number of
- * operands.
- */
- if (!strcmp(instr[i].name, *a) && instr[i].n == n)
- break;
- }
- if (!instr[i].name)
- error("unknown opcode or wrong number of operands");
-
- I_op = eval_operand(a, instr[i].op);
- I_src = eval_sdi(a, instr[i].src);
- I_imm = eval_sdi(a, instr[i].imm);
- I_dest = eval_sdi(a, instr[i].dest);
- I_addr = eval_addr(a, instr[i].addr);
-
- switch (instr[i].fmt) {
- case 1:
- case 2:
- M[LC][0] = (I_op << 1) | I_ret;
- M[LC][1] = I_dest;
- M[LC][2] = I_src;
- M[LC][3] = I_imm;
- break;
- case 3:
- if (I_ret)
- error("illegal use of \"ret\"");
- M[LC][0] = (I_op << 1) | ((I_addr >> 8) & 1);
- M[LC][1] = I_addr & 0xff;
- M[LC][2] = I_src;
- M[LC][3] = I_imm;
- break;
- }
-
- return(1); /* no two-byte instructions yet */
-}
-
-#undef SL
-#undef SR
-#undef RL
-#undef RR
-#undef LX
-#undef LA
-#undef LO
-#undef I
-#undef A
-
-void assemble(void)
-{
- int n;
- char **a;
- sym_t *p;
-
- while ((a = getl(&n))) {
-
- while (a[0][strlen(*a)-1] == ':') {
- a[0][strlen(*a)-1] = '\0';
- p = lookup(*a);
- if (p)
- p->value = LC;
- else
- define(*a, LC);
- a += 1;
- n -= 1;
- }
-
- if (!n) /* line was all labels */
- continue;
-
- if (n == 3 && !strcmp("VERSION", *a))
- fprintf(ofp, "#define %s \"%s\"\n", a[1], a[2]);
- else {
- if (n == 3 && !strcmp("=", a[1]))
- define(*a, strtol(a[2], NULL, 0));
- else
- LC += crack(a, n);
- }
- }
-
- backpatch();
- output(ofp);
-
- if (debug)
- output(stderr);
-}
-
-int main(int argc, char **argv)
-{
- int c;
-
- while ((c = getopt(argc, argv, "dho:")) != EOF) {
- switch (c) {
- case 'd':
- debug = !0;
- break;
- case 'o':
- ofp = fopen(optarg, "w");
- if (!ofp) {
- perror(optarg);
- exit(EXIT_FAILURE);
- }
- break;
- case 'h':
- printf("usage: %s [-d] [-ooutput] input\n", *argv);
- exit(EXIT_SUCCESS);
- case NULL:
- /*
- * An impossible option to shut the compiler
- * up about sccsid[].
- */
- exit((int)sccsid);
- default:
- exit(EXIT_FAILURE);
- }
- }
-
- if (argc - optind != 1) {
- fprintf(stderr, "%s: must have one input file\n", *argv);
- exit(EXIT_FAILURE);
- }
- filename = argv[optind];
-
- ifp = fopen(filename, "r");
- if (!ifp) {
- perror(filename);
- exit(EXIT_FAILURE);
- }
-
- if (!ofp) {
- ofp = fopen(ADOTOUT, "w");
- if (!ofp) {
- perror(ADOTOUT);
- exit(EXIT_FAILURE);
- }
- }
-
- assemble();
- exit(EXIT_SUCCESS);
-}
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