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Debugger: Add decimal constants.

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For the GE debugger and CPU debugger, it's annoying sometimes to express
everything in hex.  This allows using an i or u prefix to get decimal.
This commit is contained in:
Unknown W. Brackets 2022-12-02 10:13:32 -08:00
parent 7f65ba115b
commit 6619da2a0d
1 changed files with 38 additions and 29 deletions
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67
Common/Math/expression_parser.cpp
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@ -59,45 +59,54 @@ const ExpressionOpcode ExpressionOpcodes[] = {
{ "", 0, 0, 0, false } // EXOP_NONE
};
bool parseNumber(char* str, int defaultrad, int len, uint32_t& result)
{
static int radixFromZeroPrefix(char c) {
switch (tolower(c)) {
case 'b': return 2;
case 'o': return 8;
case 'x': return 16;
// Inventing a prefix since we default to hex.
case 'd': return 10;
}
return -1;
}
static int radixFromSuffix(char c, int defaultrad) {
switch (tolower(c)) {
case 'o': return 8;
case 'h': return 16;
case 'i': return 10;
case 'u': return 10;
case 'b': return defaultrad == 16 ? -1 : 2;
}
return -1;
}
bool parseNumber(char *str, int defaultrad, int len, uint32_t &result) {
int val = 0;
int r = 0;
if (len == 0) len = (int) strlen(str);
if (len == 0)
len = (int)strlen(str);
if (str[0] == '0' && tolower(str[1]) == 'x')
{
r = 16;
str+=2;
len-=2;
} else if (str[0] == '$')
{
if (str[0] == '0' && radixFromZeroPrefix(str[1]) != -1) {
r = radixFromZeroPrefix(str[1]);
str += 2;
len -= 2;
} else if (str[0] == '$') {
r = 16;
str++;
len--;
} else if (str[0] == '0' && tolower(str[1]) == 'o')
{
r = 8;
str+=2;
len-=2;
} else {
if (!(str[0] >= '0' && str[0] <= '9')) return false;
if (tolower(str[len-1]) == 'b' && defaultrad != 16)
{
r = 2;
len--;
} else if (tolower(str[len-1]) == 'o')
{
r = 8;
len--;
} else if (tolower(str[len-1]) == 'h')
{
r = 16;
} else if (str[0] >= '0' && str[0] <= '9') {
int suffix = radixFromSuffix(str[len - 1], defaultrad);
if (suffix != -1) {
r = suffix;
len--;
} else {
r = defaultrad;
}
} else {
return false;
}
switch (r)