7u83/stc_rpncalc
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fix enter for DUP showing X as 0, unify processing of commands

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This commit is contained in:
Jeff Wang 2019-10-03 00:47:28 -04:00
parent 75de345f7c
commit c42cdedc1b
1 changed files with 27 additions and 34 deletions
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61
src/main.c
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@ -129,6 +129,7 @@ __xdata const char VER_STR[32+1] = "STC RPN Calculator v1.04";
enum {
ENTERING_DONE_CLEARED,
ENTERING_DONE,
ENTERING_SIGNIF,
ENTERING_FRAC,
@ -140,9 +141,12 @@ static uint8_t EnteringExp = ENTERING_DONE;
static uint8_t Exp_i = 0;
static int8_t I_Key;
static inline uint8_t is_entering_done(void){
return EnteringExp <= ENTERING_DONE;
}
static void entering_done(void){
//reset state as initial ENTERING_DONE state
EnteringExp = ENTERING_DONE;
//reset pointers
Entry_i = 0;
Exp_i = 0;
ExpBuf[0] = 0;
@ -150,18 +154,21 @@ static void entering_done(void){
}
static inline void finish_process_entry(void){
//finish entry
int8_t exponent; //exponent is only 2 digits
exponent = 10*ExpBuf[1] + ExpBuf[0];
if ( EnteringExp == ENTERING_EXP_NEG){
exponent = -exponent;
if (!is_entering_done()){
//finish entry
int8_t exponent; //exponent is only 2 digits
exponent = 10*ExpBuf[1] + ExpBuf[0];
if ( EnteringExp == ENTERING_EXP_NEG){
exponent = -exponent;
}
EntryBuf[Entry_i] = '\0';
//reset to done
entering_done();
}
EntryBuf[Entry_i] = '\0';
//process cmd
push_decn(EntryBuf, exponent);
process_cmd(KEY_MAP[I_Key]);
//reset to done
entering_done();
EnteringExp = ENTERING_DONE;
}
#ifdef DESKTOP
@ -284,7 +291,7 @@ int main()
Exp_i = 1;
}
}
} else if ( EnteringExp == ENTERING_DONE){
} else if (is_entering_done()){
EnteringExp = ENTERING_SIGNIF;
EntryBuf[Entry_i] = KEY_MAP[I_Key];
//do not increment entry_i from 0, until first non-0 entry
@ -304,12 +311,7 @@ int main()
case '8': //fallthrough
case '9': {
if (IsShifted){
if ( EnteringExp != ENTERING_DONE){
finish_process_entry();
} else {
//process key
process_cmd(KEY_MAP[I_Key]);
}
finish_process_entry();
NoLift = 0;
} else if ( EnteringExp >= ENTERING_EXP){
if ( Exp_i == 0){
@ -323,7 +325,7 @@ int main()
Exp_i = 1;
}
}
} else if ( EnteringExp == ENTERING_DONE){
} else if (is_entering_done()){
EnteringExp = ENTERING_SIGNIF;
EntryBuf[Entry_i] = KEY_MAP[I_Key];
Entry_i++;
@ -334,7 +336,7 @@ int main()
} break;
//////////
case '.': {
if ( EnteringExp == ENTERING_DONE){
if (is_entering_done()){
EntryBuf[Entry_i++] = '0';
EntryBuf[Entry_i++] = '.';
EnteringExp = ENTERING_FRAC;
@ -353,21 +355,17 @@ int main()
//////////
case '=': {
//track stack lift
if ( EnteringExp != ENTERING_DONE){
finish_process_entry();
} else {
//dup
process_cmd(KEY_MAP[I_Key]);
}
finish_process_entry();
NoLift = 1;
} break;
//////////
case 'c': {
if (IsShifted || EnteringExp == ENTERING_DONE){
if (IsShifted || is_entering_done()){
//clear
IsShifted = 0;
NoLift = 1;
entering_done();
EnteringExp = ENTERING_DONE_CLEARED;
//do not increment entry_i from 0, until first non-0 entry
} else if ( EnteringExp >= ENTERING_EXP){
//go back to digit entry
@ -390,12 +388,7 @@ int main()
case '/': //fallthrough
case '<': //fallthrough //use as +/-
case 'r': { //use as swap
if ( EnteringExp != ENTERING_DONE){
finish_process_entry();
} else {
//process key
process_cmd(KEY_MAP[I_Key]);
}
finish_process_entry();
NoLift = 0;
} break;
//////////
@ -410,7 +403,7 @@ int main()
LCD_GoTo(0,0);
//display y register on first line
if ( EnteringExp == ENTERING_DONE){
if (is_entering_done()){
disp_exponent = decn_to_str(get_y());
} else {
//display x on 1st line, entered number on 2nd line
@ -437,7 +430,7 @@ int main()
printf("entry_i=%d,exp_i=%d\n", Entry_i, Exp_i );
print_entry_bufs();
#endif
if ( EnteringExp == ENTERING_DONE && !NoLift){
if ( EnteringExp == ENTERING_DONE){ //does not cover cleared case
disp_exponent = decn_to_str(get_x());
if (disp_exponent == 0){
LCD_OutString(Buf, MAX_CHARS_PER_LINE);