ref: 6dce09cec3bf6a689fa9a3f838df67d7d48d9d1a
dir: /limbo/asm.c/
#include "limbo.h" void asmentry(Decl *e) { if(e == nil) return; Bprint(bout, "\tentry\t%zd, %d\n", e->pc->pc, e->desc->id); } void asmmod(Decl *m) { Bprint(bout, "\tmodule\t"); Bprint(bout, "%s\n", m->sym->name); for(m = m->ty->tof->ids; m != nil; m = m->next){ switch(m->store){ case Dglobal: Bprint(bout, "\tlink\t-1,-1,0x%ux,\".mp\"\n", sign(m)); break; case Dfn: Bprint(bout, "\tlink\t%d,%zd,0x%ux,\"", m->desc->id, m->pc->pc, sign(m)); if(m->dot->ty->kind == Tadt) Bprint(bout, "%s.", m->dot->sym->name); Bprint(bout, "%s\"\n", m->sym->name); break; } } } #define NAMELEN 64 void asmpath(void) { char name[8*NAMELEN], *sp; sp = srcpath(name, 8*NAMELEN); Bprint(bout, "\tsource\t\"%s\"\n", sp); } void asmdesc(Desc *d) { uchar *m, *e; for(; d != nil; d = d->next){ Bprint(bout, "\tdesc\t$%d,%lud,\"", d->id, d->size); e = d->map + d->nmap; for(m = d->map; m < e; m++) Bprint(bout, "%.2x", *m); Bprint(bout, "\"\n"); } } void asmvar(long size, Decl *d) { Bprint(bout, "\tvar\t@mp,%ld\n", size); for(; d != nil; d = d->next) if(d->store == Dglobal && d->init != nil) asminitializer(d->offset, d->init); } void asmldt(long size, Decl *d) { Bprint(bout, "\tldts\t@ldt,%ld\n", size); for(; d != nil; d = d->next) if(d->store == Dglobal && d->init != nil) asminitializer(d->offset, d->init); } void asminitializer(long offset, Node *n) { Node *elem, *wild; Case *c; Label *lab; Decl *id; u32 dv[2]; s32 e, last, esz, dotlen, idlen; int i; switch(n->ty->kind){ case Tbyte: Bprint(bout, "\tbyte\t@mp+%ld,%d\n", offset, (s32)n->val & 0xff); break; case Tint: case Tfix: Bprint(bout, "\tword\t@mp+%ld,%d\n", offset, (s32)n->val); break; case Tbig: Bprint(bout, "\tlong\t@mp+%ld,%lld # %.16llux\n", offset, n->val, n->val); break; case Tstring: asmstring(offset, n->decl->sym); break; case Treal: dtocanon(n->rval, dv); Bprint(bout, "\treal\t@mp+%ld,%g # %.8ux%.8ux\n", offset, n->rval, dv[0], dv[1]); break; case Tadt: case Tadtpick: case Ttuple: id = n->ty->ids; for(n = n->left; n != nil; n = n->right){ asminitializer(offset + id->offset, n->left); id = id->next; } break; case Tcase: c = n->ty->cse; Bprint(bout, "\tword\t@mp+%ld,%d", offset, c->nlab); for(i = 0; i < c->nlab; i++){ lab = &c->labs[i]; Bprint(bout, ",%d,%d,%zd", (s32)lab->start->val, (s32)lab->stop->val+1, lab->inst->pc); } Bprint(bout, ",%zd\n", c->iwild ? c->iwild->pc : -1); break; case Tcasel: c = n->ty->cse; Bprint(bout, "\tword\t@mp+%ld,%d", offset, c->nlab); for(i = 0; i < c->nlab; i++){ lab = &c->labs[i]; Bprint(bout, ",%lld,%lld,%zd", lab->start->val, lab->stop->val+1, lab->inst->pc); } Bprint(bout, ",%zd\n", c->iwild ? c->iwild->pc : -1); break; case Tcasec: c = n->ty->cse; Bprint(bout, "\tword\t@mp+%ld,%d\n", offset, c->nlab); offset += IBY2WD; for(i = 0; i < c->nlab; i++){ lab = &c->labs[i]; asmstring(offset, lab->start->decl->sym); offset += IBY2WD; if(lab->stop != lab->start) asmstring(offset, lab->stop->decl->sym); offset += IBY2WD; Bprint(bout, "\tword\t@mp+%ld,%zd\n", offset, lab->inst->pc); offset += IBY2WD; } Bprint(bout, "\tword\t@mp+%ld,%zd\n", offset, c->iwild ? c->iwild->pc : -1); break; case Tgoto: c = n->ty->cse; Bprint(bout, "\tword\t@mp+%ld", offset); Bprint(bout, ",%ld", n->ty->size/IBY2WD-1); for(i = 0; i < c->nlab; i++) Bprint(bout, ",%zd", c->labs[i].inst->pc); if(c->iwild != nil) Bprint(bout, ",%zd", c->iwild->pc); Bprint(bout, "\n"); break; case Tany: break; case Tarray: Bprint(bout, "\tarray\t@mp+%ld,$%d,%d\n", offset, n->ty->tof->decl->desc->id, (s32)n->left->val); if(n->right == nil) break; Bprint(bout, "\tindir\t@mp+%ld,0\n", offset); c = n->right->ty->cse; wild = nil; if(c->wild != nil) wild = c->wild->right; last = 0; esz = n->ty->tof->size; for(i = 0; i < c->nlab; i++){ e = c->labs[i].start->val; if(wild != nil){ for(; last < e; last++) asminitializer(esz * last, wild); } last = e; e = c->labs[i].stop->val; elem = c->labs[i].node->right; for(; last <= e; last++) asminitializer(esz * last, elem); } if(wild != nil) for(e = n->left->val; last < e; last++) asminitializer(esz * last, wild); Bprint(bout, "\tapop\n"); break; case Tiface: if(LDT) Bprint(bout, "\tword\t@ldt+%ld,%d\n", offset, (s32)n->val); else Bprint(bout, "\tword\t@mp+%ld,%d\n", offset, (s32)n->val); offset += IBY2WD; for(id = n->decl->ty->ids; id != nil; id = id->next){ offset = align(offset, IBY2WD); if(LDT) Bprint(bout, "\text\t@ldt+%ld,0x%ux,\"", offset, sign(id)); else Bprint(bout, "\text\t@mp+%ld,0x%ux,\"", offset, sign(id)); dotlen = 0; idlen = id->sym->len + 1; if(id->dot->ty->kind == Tadt){ dotlen = id->dot->sym->len + 1; Bprint(bout, "%s.", id->dot->sym->name); } Bprint(bout, "%s\"\n", id->sym->name); offset += idlen + dotlen + IBY2WD; } break; default: nerror(n, "can't asm global %n", n); break; } } void asmexc(Except *es) { int i, o, n, id; Decl *d; Except *e; Case *c; Label *lab; n = 0; for(e = es; e != nil; e = e->next) n++; Bprint(bout, "\texceptions\t%d\n", n); for(e = es; e != nil; e = e->next){ if(!e->p1->reach && !e->p2->reach) continue; c = e->c; o = e->d->offset; if(e->desc != nil) id = e->desc->id; else id = -1; Bprint(bout, "\texception\t%ld, %ld, %d, %d, %d, %d\n", getpc(e->p1), getpc(e->p2), o, id, c->nlab, e->ne); for(i = 0; i < c->nlab; i++){ lab = &c->labs[i]; d = lab->start->decl; if(lab->start->ty->kind == Texception) d = d->init->decl; Bprint(bout, "\texctab\t\"%s\", %zd\n", d->sym->name, lab->inst->pc); } if(c->iwild == nil) Bprint(bout, "\texctab\t*, %d\n", -1); else Bprint(bout, "\texctab\t*, %zd\n", c->iwild->pc); } } void asmstring(long offset, Sym *sym) { char *s, *se; int c; Bprint(bout, "\tstring\t@mp+%ld,\"", offset); s = sym->name; se = s + sym->len; for(; s < se; s++){ c = *s; if(c == '\n') Bwrite(bout, "\\n", 2); else if(c == '\0') Bwrite(bout, "\\z", 2); else if(c == '"') Bwrite(bout, "\\\"", 2); else if(c == '\\') Bwrite(bout, "\\\\", 2); else Bputc(bout, c); } Bprint(bout, "\"\n"); } void asminst(Inst *in) { for(; in != nil; in = in->next){ if(in->op == INOOP) continue; if(in->pc % 10 == 0) Bprint(bout, "#%zd\n", in->pc); Bprint(bout, "%I\n", in); } }