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Store UCI strings in progmem

This commit is contained in:
Quinten Kock 2020-06-19 18:28:09 +02:00
parent ec306fe6ad
commit ce19f8793a
1 changed files with 14 additions and 12 deletions
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26
Uci.h
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@ -1,6 +1,8 @@
#ifndef __UCI_H_INC #ifndef __UCI_H_INC
#define __UCI_H_INC #define __UCI_H_INC
#define PS2(s) ([]{ static const char c[] PROGMEM = (s); return &c[0]; }())
typedef void uci_return; typedef void uci_return;
typedef uci_return (*uci_handler)(); typedef uci_return (*uci_handler)();
@ -22,19 +24,19 @@ uci_return uci_unknown() {
} }
const uci_cmd UCI_COMMANDS[] = { const uci_cmd UCI_COMMANDS[] = {
{"uci", &uci_hello}, {PS2("uci"), &uci_hello},
{"debug", &uci_unimpl}, {PS2("debug"), &uci_unimpl},
{"isready", &uci_unimpl}, {PS2("isready"), &uci_unimpl},
{"setoption", &uci_unimpl}, {PS2("setoption"), &uci_unimpl},
{"ucinewgame", &uci_unimpl}, {PS2("ucinewgame"), &uci_unimpl},
{"position", &uci_unimpl}, {PS2("position"), &uci_unimpl},
{"go", &uci_unimpl}, {PS2("go"), &uci_unimpl},
{"stop", &uci_unimpl}, {PS2("stop"), &uci_unimpl},
{"ponderhit", &uci_unimpl}, {PS2("ponderhit"), &uci_unimpl},
{"quit", &uci_unimpl}, {PS2("quit"), &uci_unimpl},
}; };
const uci_cmd UCI_INVALID = {"", &uci_unknown}; const uci_cmd UCI_INVALID = {PS2(""), &uci_unknown};
uci_cmd get_uci_command(const char* command) { uci_cmd get_uci_command(const char* command) {
size_t command_num = sizeof(UCI_COMMANDS) / sizeof(uci_cmd); size_t command_num = sizeof(UCI_COMMANDS) / sizeof(uci_cmd);
@ -42,7 +44,7 @@ uci_cmd get_uci_command(const char* command) {
size_t ci = 0; size_t ci = 0;
uci_cmd to_try = UCI_COMMANDS[i]; uci_cmd to_try = UCI_COMMANDS[i];
while(true) { while(true) {
char reference = to_try.command[ci]; char reference = pgm_read_byte_near(to_try.command + ci);
if(reference != command[ci]) { if(reference != command[ci]) {
break; break;
} }