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Author SHA1 Message Date
Jan Nieuwenhuizen 7667fb95c0 mescc: Proper support for i++,++i,i--,--i. 
* module/language/c99/compiler.mes (ast->info): Bugfix: locals.
  Add i--, --i.  Properly support i++, ++i.
* module/mes/libc-i386.mes (i386:function-locals): Support 8 local vars.
* scaffold/t.c (test): Test it.
 2017-01-07 21:53:12 +01:00
Jan Nieuwenhuizen c83ef66265 mescc: Beginning of expression and test template. 
* scaffold/t.c: New file.
* GNUmakefile (mescc-check, t-check): New targets.
* module/language/c99/compiler.mes (write-any): Catch weirdness.
  (make): Add <function> slot.
  (.function): New accessor.
  (clone): Handle it.
  (function->info): Set it.
  (ast->info): Make tests generic in if, for, while.  Add goto, label,
  !, ==, !=, -, &&.
* module/mes/elf-util.mes (lambda/label->list): New function.
  (text->list): Use it.
  (functions->text, function-prefix): New function.
  (function-offset): Use it.
  (label-offset): New function.
* module/mes/elf-util.scm (mes): Export them.
* module/mes/elf.mes (make-elf): Use text->list.
* module/mes/libc-i386.mes (eputs, puts): Remove.
  (i386:byte-base-sub): Rename from sub-byte-base.
  (i386:byte-jump-z): Rename from i386:Xjump-byte-z.
  (i386:byte-mem->accu): Rename from i386:Xmem-byte->accu.
  (i386:byte-mem->base): Rename from i386:Xmem-byte->base.
  (i386:accu->local, i386:accu-non-zero?, i386:accu-zero?,
  i386:base-sub, i386:byte-sub-base, i386:jump-c, i386:jump-cz,
  i386:jump-nc, i386:jump-ncz, i386:byte-mem->base, i386:sub-base,
  i386:test-accu, i386:test-base, i386:test-jump-z, i386:value->base,
  i386:xor-zf): New functions.
 2017-04-02 12:23:00 +02:00
Jan Nieuwenhuizen 8d1e001ab2 mescc: Have micro-mes use strcmp to print help. 
* doc/examples/micro-mes.c (main): Add --help.
* module/language/c99/compiler.mes (info?): New function.
  (expr->accu): Handle function call and sub.
  (ast->info): Handle if not, and, de-ref, eq, sub, return f ().
* module/mes/libc-i386.mes (i386:accu-zero?, i386:Xmem-byte->accu,
  i386:Xmem-byte->base, i386:jump-byte-nz, i386:jump-byte-z,
  i386:test-byte-base, i386:Xjump-byte-z, i386:sub-byte-base): New
  functions.
* module/mes/libc-i386.scm: Export them.
 2017-01-06 00:20:05 +01:00
Jan Nieuwenhuizen 107795b13c mescc: Compile specific for loop. 
* module/language/c99/compiler.mes (ast->info): Handle for, pre-inc.
* GNUmakefile (main): New target.
* doc/examples/main.c:
  (exit, write, strlen,puts)[__GNUC__]: New functions; import from micro-mes.c
  (_start): New function.
 2017-01-05 21:24:56 +01:00
Jan Nieuwenhuizen 4a3e419e30 mescc: Refactor compiler. 
* module/language/c99/compiler.mes (make, clone): Lightweight functional
  GOOPS-like list-based info structure.
  (make-text+globals+locals): Remove.
  (ast->info): Rename from statement->text+globals+locals, refactor.
  Update callers.
  (function->info): Rename from function->globals, refactor.  Update
  callers.
  (ast-list->info): New function.
 2017-01-05 00:55:46 +01:00
Jan Nieuwenhuizen f106dbfdae mescc: Rename symbols to globals. 
* module/language/c99/compiler.mes:
 2017-01-03 18:34:49 +01:00
Jan Nieuwenhuizen 38dc229a01 mescc: Have micro-mes use if not to segfault. 
* module/language/c99/compiler.mes (write-any): Check explicitly on
  number?, report error otherwise.
  (statement->text+symbols+locals): Remove statement-offset.
  Handle compounds.  Handle very specific if.
  (function->symbols): Remove unused text-offset.
* doc/examples/micro-mes.c (main): If argc > 1 print argv1.  Fixes
  segfault :-)
* module/mes/elf-util.mes (symbols->text): Loop rather than map,
  feed text-offset.
* module/mes/libc-i386.mes (i386:local-test, i386:jump-le): New
  functions.
* module/mes/libc-i386.scm: Export them.
 2017-01-03 18:22:56 +01:00
Jan Nieuwenhuizen 296449c615 mescc: Have micro-mes print argv. 
* module/language/c99/compiler.mes (expr->arg): Bugfix argv: Use
  size=4 (int).
  (statement->text+symbols+locals): Bugfixes: array-ref, initialize with
  immediate, initialize with local.
  (formals->locals): Bugfix: formals counted down from -1 [WAS: down to
  -1].
* module/mes/libc-i386.mes (i386:call): Reverse args pushes to match
  formals index changes.
  (i386:write): Update for changed formals push order.
  (i386:mem->accu, i386:value->accu): New functions.
* module/mes/libc-i386.scm (mes): Export them.
* doc/examples/micro-mes.c (eputs, puts, fputs): Make identical with
  mescc's implementations.
  (main): Print argv[0] and (unconditionally; crash if not given) argv[1].
 2017-01-03 12:33:34 +01:00
Jan Nieuwenhuizen 01177f7324 mescc: Have micro-mes print argc. 
* module/language/c99/compiler.mes (accu->ident): New function.
  (statement->text+symbols+locals): Use it to implement initialization
  with immediate, local.
  (_start): Call main with argc,argv [WAS: 0,0].
* module/mes/libc-i386.mes (i386:push-accu, i386:accu->local): New
  functions.
* module/mes/libc-i386.scm: Export them.
* doc/examples/micro-mes.c (main): Return argc as exit status.
 2017-01-03 12:52:59 +01:00
Jan Nieuwenhuizen b93d5188ea mescc: Support literal .byte in asm (). 
* module/language/c99/compiler.mes (expr->arg): Handle array-ref (int
  only).
  (byte->hex, asm->hex): New functions.
  (statement->text+symbols+locals): Use it to implement asm ().
 2017-01-03 12:45:47 +01:00
Jan Nieuwenhuizen 109cbdd1e7 mescc: Formals, local variables. 
* module/language/c99/compiler.mes (statement->text+symbols+locals):
  Rename from statement->text+symbols.  Handle locals.
  (formals->text): Add proper function preamble.
  (formals->locals): Add formals as locals.
  (expr->accu, ident->accu, ident->base, ident-ref, global-ref): New
  functions.
  (strlen, eputs, fputs, puts): New functions.
  (libc): New variable.
  (i386:libc): Rename from libc.  Remove eputs and puts.
* module/mes/libc-i386.mes (i386:eputs, i386:puts: Remove.
  (i386:call, i386:ret): Handle locals as argument.
  (i386:function-locals, i386:function-preamble, i386:jump,
  i386:local->accu, i386:local-add, i386:local-assign,
  i386:local->base, i386:ref-global, i386:ref-local, i386:ret-local,
  i386:mem-byte->accu, i386:test-jump, i386:write): New functions.
* module/mes/libc-i386.scm: Export them.
 2017-01-02 23:21:33 +01:00
Jan Nieuwenhuizen 57e11b3147 mescc: Nicer functions/parameters. 
* module/mes/libc-i386.mes (eputs, exit, puts): Save stack pointer,
  fill parameter registers from stack.
* module/language/c99/compiler.mes (formal->text): Fill parameter
  registers from stack memory.
  (formals->text): Save stack pointer.
 2017-01-02 07:41:56 +01:00
Jan Nieuwenhuizen eb3fed2a00 mescc: Nyacc updates, factor-out elf-util. 
* module/mes/bytevectors.mes
* module/mes/elf-util.mes: New file.
* module/mes/elf.mes: Use it.
  (make-elf): Generate symbol-table string-table.
* module/mes/elf-util.scm: New file.
* module/mes/elf.scm: Use it.
* module/language/c99/compiler.mes: Include it.
* module/language/c99/compiler.scm: Include it.
* module/mes/libc-i386.mes (call, eputs, exit, puts): New functions.
* module/mes/libc-i386.scm: Export them.
 2017-04-02 11:55:37 +02:00
Jan Nieuwenhuizen 7ec42c3cc7 mescc: Use Nyacc frontend. 
* module/language/c99/compiler.mes: New file.
* module/language/c99/compiler.scm: Include it.
* module/mes/elf.mes: Move (mes-use-module) into cond-expand.
* module/mes/elf.scm: New file.
* module/mes/libc-i386.scm: New file.
* module/nyacc/lang/c99/parser.mes: Add missing module includes.
* module/nyacc/lang/util.mes: Add missing module include.
* scripts/mescc.mes: Use Nyacc.
* guile/mescc.scm: New file.
* GNUmakefile (guile-mescc): Run it.
 2016-12-31 09:03:07 +01:00