ref: 3e0e77a8521331412c96b6371622aa2f76d7aefc
dir: /sys/src/cmd/5l/list.c/
#include "l.h" void listinit(void) { fmtinstall('A', Aconv); fmtinstall('C', Cconv); fmtinstall('D', Dconv); fmtinstall('P', Pconv); fmtinstall('S', Sconv); fmtinstall('N', Nconv); } void prasm(Prog *p) { print("%P\n", p); } int Pconv(Fmt *fp) { char str[STRINGSZ]; Prog *p; int a; p = va_arg(fp->args, Prog*); curp = p; a = p->as; switch(a) { default: if(p->reg == NREG) snprint(str, sizeof str, "(%ld) %A%C %D,%D", p->line, a, p->scond, &p->from, &p->to); else if(p->from.type != D_FREG) snprint(str, sizeof str, "(%ld) %A%C %D,R%d,%D", p->line, a, p->scond, &p->from, p->reg, &p->to); else snprint(str, sizeof str, "(%ld) %A%C %D,F%d,%D", p->line, a, p->scond, &p->from, p->reg, &p->to); break; case ASWPW: case ASWPBU: snprint(str, sizeof str, "(%ld) %A%C R%d,%D,%D", p->line, a, p->scond, p->reg, &p->from, &p->to); break; case ADATA: case AINIT: case ADYNT: snprint(str, sizeof str, "(%ld) %A%C %D/%d,%D", p->line, a, p->scond, &p->from, p->reg, &p->to); break; } 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); } char* strcond[16] = { ".EQ", ".NE", ".HS", ".LO", ".MI", ".PL", ".VS", ".VC", ".HI", ".LS", ".GE", ".LT", ".GT", ".LE", "", ".NV" }; int Cconv(Fmt *fp) { char s[20]; int c; c = va_arg(fp->args, int); strcpy(s, strcond[c & C_SCOND]); if(c & C_SBIT) strcat(s, ".S"); if(c & C_PBIT) strcat(s, ".P"); if(c & C_WBIT) strcat(s, ".W"); if(c & C_UBIT) /* ambiguous with FBIT */ strcat(s, ".U"); return fmtstrcpy(fp, s); } int Dconv(Fmt *fp) { char str[STRINGSZ]; char *op; Adr *a; long v; a = va_arg(fp->args, Adr*); switch(a->type) { default: snprint(str, sizeof str, "GOK-type(%d)", a->type); break; case D_NONE: str[0] = 0; if(a->name != D_NONE || a->reg != NREG || a->sym != S) snprint(str, sizeof str, "%N(R%d)(NONE)", a, a->reg); break; case D_CONST: if(a->reg == NREG) snprint(str, sizeof str, "$%N", a); else snprint(str, sizeof str, "$%N(R%d)", a, a->reg); break; case D_SHIFT: v = a->offset; op = "<<>>->@>" + (((v>>5) & 3) << 1); if(v & (1<<4)) snprint(str, sizeof str, "R%ld%c%cR%ld", v&15, op[0], op[1], (v>>8)&15); else { long sh = (v>>7)&31; if(sh == 0 && (v & (3<<5)) != 0) sh = 32; snprint(str, sizeof str, "R%ld%c%c%ld", v&15, op[0], op[1], sh); } if(a->reg != NREG) snprint(str+strlen(str), sizeof(str)-strlen(str), "(R%d)", a->reg); break; case D_OCONST: snprint(str, sizeof str, "$*$%N", a); if(a->reg != NREG) snprint(str, sizeof str, "%N(R%d)(CONST)", a, a->reg); break; case D_OREG: if(a->reg != NREG) snprint(str, sizeof str, "%N(R%d)", a, a->reg); else snprint(str, sizeof str, "%N", a); break; case D_REG: snprint(str, sizeof str, "R%d", a->reg); if(a->name != D_NONE || a->sym != S) snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg); break; case D_REGREG: snprint(str, sizeof str, "(R%d,R%d)", a->reg, (int)a->offset); if(a->name != D_NONE || a->sym != S) snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg); break; case D_FREG: snprint(str, sizeof str, "F%d", a->reg); if(a->name != D_NONE || a->sym != S) snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg); break; case D_PSR: switch(a->reg) { case 0: snprint(str, sizeof str, "CPSR"); break; case 1: snprint(str, sizeof str, "SPSR"); break; default: snprint(str, sizeof str, "PSR%d", a->reg); break; } if(a->name != D_NONE || a->sym != S) snprint(str, sizeof str, "%N(PSR%d)(REG)", a, a->reg); break; case D_FPCR: switch(a->reg){ case 0: snprint(str, sizeof str, "FPSR"); break; case 1: snprint(str, sizeof str, "FPCR"); break; default: snprint(str, sizeof str, "FCR%d", a->reg); break; } if(a->name != D_NONE || a->sym != S) snprint(str, sizeof str, "%N(FCR%d)(REG)", a, a->reg); break; case D_BRANCH: /* botch */ if(curp->cond != P) { v = curp->cond->pc; if(a->sym != S) snprint(str, sizeof str, "%s+%.5lux(BRANCH)", a->sym->name, v); else snprint(str, sizeof str, "%.5lux(BRANCH)", v); } else if(a->sym != S) snprint(str, sizeof str, "%s+%ld(APC)", a->sym->name, a->offset); else snprint(str, sizeof str, "%ld(APC)", a->offset); break; case D_FCONST: snprint(str, sizeof str, "$%e", ieeedtod(a->ieee)); break; case D_SCONST: snprint(str, sizeof str, "$\"%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; switch(a->name) { default: snprint(str, sizeof str, "GOK-name(%d)", a->name); break; case D_NONE: snprint(str, sizeof str, "%ld", a->offset); break; case D_EXTERN: if(s == S) snprint(str, sizeof str, "%ld(SB)", a->offset); else snprint(str, sizeof str, "%s+%ld(SB)", s->name, a->offset); break; case D_STATIC: if(s == S) snprint(str, sizeof str, "<>+%ld(SB)", a->offset); else snprint(str, sizeof str, "%s<>+%ld(SB)", s->name, a->offset); break; case D_AUTO: if(s == S) snprint(str, sizeof str, "%ld(SP)", a->offset); else snprint(str, sizeof str, "%s-%ld(SP)", s->name, -a->offset); break; case D_PARAM: if(s == S) snprint(str, sizeof str, "%ld(FP)", a->offset); else snprint(str, sizeof str, "%s+%ld(FP)", s->name, a->offset); break; } return fmtstrcpy(fp, str); } 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(); } }