Subversion Repositories planix.SVN

#include "l.h"

void
listinit(void)
{

        fmtinstall('A', Aconv);
        fmtinstall('D', Dconv);
        fmtinstall('P', Pconv);
        fmtinstall('S', Sconv);
        fmtinstall('N', Nconv);
        fmtinstall('R', Rconv);
}

void
prasm(Prog *p)
{
        print("%P\n", p);
}

int
Pconv(Fmt *fp)
{
        char str[STRINGSZ], *s;
        Prog *p;
        int a;

        p = va_arg(fp->args, Prog*);
        curp = p;
        a = p->as;
        if(a == ADATA || a == AINIT || a == ADYNT)
                sprint(str, "(%d)       %A      %D/%d,%D", p->line, a, &p->from, p->reg, &p->to);
        else {
                s = str;
                if(p->mark & NOSCHED)
                        s += sprint(s, "*");
                if(p->reg == NREG && p->from3.type == D_NONE)
                        sprint(s, "(%d) %A      %D,%D", p->line, a, &p->from, &p->to);
                else
                if(a != ATEXT && p->from.type == D_OREG) {
                        sprint(s, "(%d) %A      %ld(R%d+R%d),%D", p->line, a,
                                p->from.offset, p->from.reg, p->reg, &p->to);
                } else
                if(p->to.type == D_OREG) {
                        sprint(s, "(%d) %A      %D,%ld(R%d+R%d)", p->line, a,
                                        &p->from, p->to.offset, p->to.reg, p->reg);
                } else {
                        s += sprint(s, "(%d)    %A      %D", p->line, a, &p->from);
                        if(p->reg != NREG)
                                s += sprint(s, ",%c%d", p->from.type==D_FREG?'F':'R', p->reg);
                        if(p->from3.type != D_NONE)
                                s += sprint(s, ",%D", &p->from3);
                        sprint(s, ",%D", &p->to);
                }
        }
        return fmtstrcpy(fp, str);
}

int
Aconv(Fmt *fp)
{
        char *s;
        int a;

        a = va_arg(fp->args, int);
        s = "???";
        if(a >= AXXX && a < ALAST)
                s = anames[a];
        return fmtstrcpy(fp, s);
}

int
Dconv(Fmt *fp)
{
        char str[STRINGSZ];
        Adr *a;
        long v;

        a = va_arg(fp->args, Adr*);
        switch(a->type) {

        default:
                sprint(str, "GOK-type(%d)", a->type);
                break;

        case D_NONE:
                str[0] = 0;
                if(a->name != D_NONE || a->reg != NREG || a->sym != S)
                        sprint(str, "%N(R%d)(NONE)", a, a->reg);
                break;

        case D_CONST:
                if(a->reg != NREG)
                        sprint(str, "$%N(R%d)", a, a->reg);
                else
                        sprint(str, "$%N", a);
                break;

        case D_OREG:
                if(a->reg != NREG)
                        sprint(str, "%N(R%d)", a, a->reg);
                else
                        sprint(str, "%N", a);
                break;

        case D_REG:
                sprint(str, "R%d", a->reg);
                if(a->name != D_NONE || a->sym != S)
                        sprint(str, "%N(R%d)(REG)", a, a->reg);
                break;

        case D_FREG:
                sprint(str, "F%d", a->reg);
                if(a->name != D_NONE || a->sym != S)
                        sprint(str, "%N(F%d)(REG)", a, a->reg);
                break;

        case D_CREG:
                if(a->reg == NREG)
                        strcpy(str, "CR");
                else
                        sprint(str, "CR%d", a->reg);
                if(a->name != D_NONE || a->sym != S)
                        sprint(str, "%N(C%d)(REG)", a, a->reg);
                break;

        case D_SPR:
                if(a->name == D_NONE && a->sym == S) {
                        switch(a->offset) {
                        case D_XER: sprint(str, "XER"); break;
                        case D_LR: sprint(str, "LR"); break;
                        case D_CTR: sprint(str, "CTR"); break;
                        default: sprint(str, "SPR(%ld)", a->offset); break;
                        }
                        break;
                }
                sprint(str, "SPR-GOK(%d)", a->reg);
                if(a->name != D_NONE || a->sym != S)
                        sprint(str, "%N(SPR-GOK%d)(REG)", a, a->reg);
                break;

        case D_DCR:
                if(a->name == D_NONE && a->sym == S) {
                        if(a->reg == NREG)
                                sprint(str, "DCR(%ld)", a->offset);
                        else
                                sprint(str, "DCR(R%d)", a->reg);
                        break;
                }
                sprint(str, "DCR-GOK(%d)", a->reg);
                if(a->name != D_NONE || a->sym != S)
                        sprint(str, "%N(DCR-GOK%d)(REG)", a, a->reg);
                break;

        case D_OPT:
                sprint(str, "OPT(%d)", a->reg);
                break;

        case D_FPSCR:
                if(a->reg == NREG)
                        strcpy(str, "FPSCR");
                else
                        sprint(str, "FPSCR(%d)", a->reg);
                break;

        case D_MSR:
                sprint(str, "MSR");
                break;

        case D_SREG:
                sprint(str, "SREG(%d)", a->reg);
                if(a->name != D_NONE || a->sym != S)
                        sprint(str, "%N(SREG%d)(REG)", a, a->reg);
                break;

        case D_BRANCH:
                if(curp->cond != P) {
                        v = curp->cond->pc;
                        if(v >= INITTEXT)
                                v -= INITTEXT-HEADR;
                        if(a->sym != S)
                                sprint(str, "%s+%.5lux(BRANCH)", a->sym->name, v);
                        else
                                sprint(str, "%.5lux(BRANCH)", v);
                } else
                        if(a->sym != S)
                                sprint(str, "%s+%ld(APC)", a->sym->name, a->offset);
                        else
                                sprint(str, "%ld(APC)", a->offset);
                break;

        case D_FCONST:
                sprint(str, "$%lux-%lux", a->ieee.h, a->ieee.l);
                break;

        case D_SCONST:
                sprint(str, "$\"%S\"", a->sval);
                break;
        }
        return fmtstrcpy(fp, str);
}

int
Nconv(Fmt *fp)
{
        char str[STRINGSZ];
        Adr *a;
        Sym *s;

        a = va_arg(fp->args, Adr*);
        s = a->sym;
        if(s == S) {
                sprint(str, "%ld", a->offset);
                goto out;
        }
        switch(a->name) {
        default:
                sprint(str, "GOK-name(%d)", a->name);
                break;

        case D_EXTERN:
                sprint(str, "%s+%ld(SB)", s->name, a->offset);
                break;

        case D_STATIC:
                sprint(str, "%s<>+%ld(SB)", s->name, a->offset);
                break;

        case D_AUTO:
                sprint(str, "%s-%ld(SP)", s->name, -a->offset);
                break;

        case D_PARAM:
                sprint(str, "%s+%ld(FP)", s->name, a->offset);
                break;
        }
out:
        return fmtstrcpy(fp, str);
}

int
Rconv(Fmt *fp)
{
        char *s;
        int a;

        a = va_arg(fp->args, int);
        s = "C_??";
        if(a >= C_NONE && a <= C_NCLASS)
                s = cnames[a];
        return fmtstrcpy(fp, s);
}

int
Sconv(Fmt *fp)
{
        int i, c;
        char str[STRINGSZ], *p, *a;

        a = va_arg(fp->args, char*);
        p = str;
        for(i=0; i<sizeof(long); i++) {
                c = a[i] & 0xff;
                if(c >= 'a' && c <= 'z' ||
                   c >= 'A' && c <= 'Z' ||
                   c >= '0' && c <= '9' ||
                   c == ' ' || c == '%') {
                        *p++ = c;
                        continue;
                }
                *p++ = '\\';
                switch(c) {
                case 0:
                        *p++ = 'z';
                        continue;
                case '\\':
                case '"':
                        *p++ = c;
                        continue;
                case '\n':
                        *p++ = 'n';
                        continue;
                case '\t':
                        *p++ = 't';
                        continue;
                }
                *p++ = (c>>6) + '0';
                *p++ = ((c>>3) & 7) + '0';
                *p++ = (c & 7) + '0';
        }
        *p = 0;
        return fmtstrcpy(fp, str);
}

void
diag(char *fmt, ...)
{
        char buf[STRINGSZ], *tn;
        va_list arg;

        tn = "??none??";
        if(curtext != P && curtext->from.sym != S)
                tn = curtext->from.sym->name;
        va_start(arg, fmt);
        vseprint(buf, buf+sizeof(buf), fmt, arg);
        va_end(arg);
        print("%s: %s\n", tn, buf);

        nerrors++;
        if(nerrors > 10) {
                print("too many errors\n");
                errorexit();
        }
}