diff options
Diffstat (limited to 'mixguile/xmixguile_cmd_dispatcher.c')
| -rw-r--r-- | mixguile/xmixguile_cmd_dispatcher.c | 210 |
1 files changed, 198 insertions, 12 deletions
diff --git a/mixguile/xmixguile_cmd_dispatcher.c b/mixguile/xmixguile_cmd_dispatcher.c index 38a1200..711bc52 100644 --- a/mixguile/xmixguile_cmd_dispatcher.c +++ b/mixguile/xmixguile_cmd_dispatcher.c @@ -28,6 +28,7 @@ /* cmd dispatcher for use within the scm commands */ static mixguile_cmd_dispatcher_t *dispatcher_; static mix_vm_cmd_dispatcher_t *vm_dispatcher_; +static mix_vm_t *vm_; /* register a NULL-terminated list of scm commands */ void @@ -51,19 +52,23 @@ register_cmd_dispatcher_ (mixguile_cmd_dispatcher_t *dis) g_return_if_fail (dis != NULL); dispatcher_ = dis; vm_dispatcher_ = mixguile_cmd_dispatcher_get_vm_dispatcher (dis); + vm_ = (mix_vm_t *) mix_vm_cmd_dispatcher_get_vm (vm_dispatcher_); } /* commands */ static SCM -mix_command_ (SCM cmd, SCM arg) +mixvm_cmd_ (SCM cmd, SCM arg) { - char *com, *argu; + char *com = NULL, *argu = NULL; int len; gboolean result; + SCM_ASSERT (SCM_STRINGP (cmd) || SCM_SYMBOLP (cmd), + cmd, SCM_ARG1, "mixvm-cmd"); + SCM_ASSERT (SCM_STRINGP (arg) || SCM_SYMBOLP (arg), + arg, SCM_ARG2, "mixvm-cmd"); + SCM_DEFER_INTS; - SCM_ASSERT (SCM_STRINGP (cmd), cmd, SCM_ARG1, "mix-command"); - SCM_ASSERT (SCM_STRINGP (arg), arg, SCM_ARG2, "mix-command"); com = gh_scm2newstr (cmd, &len); argu = gh_scm2newstr (arg, &len); result = mix_vm_cmd_dispatcher_dispatch (vm_dispatcher_, @@ -71,20 +76,201 @@ mix_command_ (SCM cmd, SCM arg) argu); g_free (com); g_free (argu); - SCM_ALLOW_INTS; com = (char *) mixguile_cmd_dispatcher_last_result (dispatcher_); + SCM_ALLOW_INTS; + if (!com || strlen (com) == 0) - com = result? "ok" : "fail"; + return gh_symbol2scm (result? "ok" : "fail"); return gh_str02scm (com); } -/* NULL-terminated list of available scm commands */ -const scm_command_t DEFAULT_SCM_COMMANDS_[] = { - {"mix-command", mix_command_, 2, 0, 0}, - {NULL} -}; +static long +word_to_long_ (mix_word_t word) +{ + long result = mix_word_magnitude (word); + return mix_word_is_negative (word) ? -result : result; +} +static long +short_to_long_ (mix_short_t s) +{ + long result = mix_short_magnitude (s); + return mix_short_is_negative (s) ? -result : result; +} + +static SCM +mix_reg_ (SCM reg) +{ + char *regis; + int len; + long val = MIX_WORD_MAX + 1; - + SCM_ASSERT (SCM_STRINGP (reg) || SCM_SYMBOLP (reg), reg, SCM_ARG1, "mix-reg"); + + SCM_DEFER_INTS; + regis = gh_scm2newstr (reg, &len); + switch (regis[0]) + { + case 'A': + val = word_to_long_ (mix_vm_get_rA (vm_)); break; + case 'X': + val = word_to_long_ (mix_vm_get_rX (vm_)); break; + case 'J': + val = short_to_long_ (mix_vm_get_rJ (vm_)); break; + case 'I': + { + int i = regis[1] - '0'; + if (i > 0 && i < 7) val = short_to_long_ (mix_vm_get_rI (vm_, i)); + } + break; + default: + break; + } + g_free (regis); + SCM_ALLOW_INTS; + + SCM_ASSERT (val <= MIX_WORD_MAX, reg, SCM_ARG1, "mix-reg"); + + return gh_long2scm (val); +} + +static SCM +mix_set_reg_ (SCM reg, SCM value) +{ + char *regis; + int len; + long val; + gboolean result = TRUE; + SCM_ASSERT (SCM_STRINGP (reg) || SCM_SYMBOLP (reg), reg, SCM_ARG1, + "mix-set-reg!"); + SCM_ASSERT (SCM_NUMBERP (value), value, SCM_ARG2, "mix-set-reg!"); + + SCM_DEFER_INTS; + regis = gh_scm2newstr (reg, &len); + val = gh_scm2long (value); + switch (regis[0]) + { + case 'A': + mix_vm_set_rA (vm_, mix_word_new (val)); break; + case 'X': + mix_vm_set_rX (vm_, mix_word_new (val)); break; + case 'J': + mix_vm_set_rJ (vm_, mix_short_new (val)); break; + case 'I': + { + int i = regis[1] - '0'; + if (i > 0 && i < 7) mix_vm_set_rI (vm_, i, mix_short_new (val)); + else result = FALSE; + } + break; + default: + result = FALSE; break; + } + g_free (regis); + + SCM_ALLOW_INTS; + + SCM_ASSERT (result, reg, SCM_ARG1, "mix-set-reg!"); + + return gh_symbol2scm ("ok"); +} + +static SCM +mix_cell_ (SCM no) +{ + int cell; + long result; + + SCM_ASSERT (SCM_NUMBERP (no), no, SCM_ARG1, "mix-cell"); + cell = gh_scm2int (no); + SCM_ASSERT (cell < MIX_VM_CELL_NO, no, SCM_ARG1, "mix-cell"); + result = word_to_long_ (mix_vm_get_addr_contents (vm_, cell)); + return gh_long2scm (result); +} + +static SCM +mix_set_cell_ (SCM no, SCM val) +{ + int cell; + long result; + + SCM_ASSERT (SCM_NUMBERP (no), no, SCM_ARG1, "mix-set-cell!"); + SCM_ASSERT (SCM_NUMBERP (val), no, SCM_ARG2, "mix-set-cell!"); + cell = gh_scm2int (no); + SCM_ASSERT (cell < MIX_VM_CELL_NO, no, SCM_ARG1, "mix-set-cell!"); + result = gh_scm2long (val); + mix_vm_set_addr_contents (vm_, cell, mix_word_new (result)); + return gh_symbol2scm ("ok"); +} + +static SCM +mix_over_ (void) +{ + return gh_bool2scm (mix_vm_get_overflow (vm_)); +} + +static SCM +mix_set_over_ (SCM over) +{ + mix_vm_set_overflow (vm_, gh_scm2bool (over)); + return gh_symbol2scm ("ok"); +} + +static SCM +mix_cmp_ (void) +{ + gchar *result = NULL; + switch (mix_vm_get_cmpflag (vm_)) + { + case mix_LESS: result = "L"; break; + case mix_EQ: result = "E"; break; + case mix_GREAT: result = "G"; break; + default: g_assert_not_reached (); + } + return gh_symbol2scm (result); +} + +static SCM +mix_set_cmp_ (SCM value) +{ + gchar *val = NULL; + int len; + mix_cmpflag_t result = -1; + + SCM_ASSERT (SCM_STRINGP (value) || SCM_SYMBOLP (value), value, SCM_ARG1, + "mix-set-cmp!"); + + SCM_DEFER_INTS; + val = gh_scm2newstr (value, &len); + if (strlen (val) == 1) + { + switch (val[0]) + { + case 'L': result = mix_LESS; break; + case 'E': result = mix_EQ; break; + case 'G': result = mix_GREAT; break; + default: break; + } + } + g_free (val); + SCM_ALLOW_INTS; + SCM_ASSERT (result != -1, value, SCM_ARG1, "mix-set-cmp!"); + mix_vm_set_cmpflag (vm_, result); + return gh_symbol2scm ("ok"); +} + +/* NULL-terminated list of available scm commands */ +const scm_command_t DEFAULT_SCM_COMMANDS_[] = { + {"mixvm-cmd", mixvm_cmd_, 2, 0, 0}, + {"mix-reg", mix_reg_, 1, 0, 0}, + {"mix-set-reg!", mix_set_reg_, 2, 0, 0}, + {"mix-cell", mix_cell_, 1, 0, 0}, + {"mix-set-cell!", mix_set_cell_, 2, 0, 0}, + {"mix-over", mix_over_, 0, 0, 0}, + {"mix-set-over!", mix_set_over_, 1, 0, 0}, + {"mix-cmp", mix_cmp_, 0, 0, 0}, + {"mix-set-cmp!", mix_set_cmp_, 1, 0, 0}, + {NULL} +}; |