adapting va_arg parameters of printf
This commit is contained in:
georgemoralis
parent
b9c6d9d395
commit
cefd3d95ed
|
|
@ -45,26 +45,28 @@
|
|||
// with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
|
||||
//copied from Vita3k project at 6/10/2023 (latest update 30/06/2023)
|
||||
//modifications for adapting va_args parameters
|
||||
// copied from Vita3k project at 6/10/2023 (latest update 30/06/2023)
|
||||
// modifications for adapting va_args parameters
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <cstdarg>
|
||||
#include <cstddef>
|
||||
#include <cstdbool>
|
||||
#include <cstddef>
|
||||
#include <cstdint>
|
||||
|
||||
namespace utils {
|
||||
#include "va_ctx.h"
|
||||
|
||||
namespace Emulator::HLE::Libraries::LibC {
|
||||
// ntoa conversion buffer size, this must be big enough to hold
|
||||
// one converted numeric number including padded zeros (dynamically created on stack)
|
||||
// 32 byte is a good default
|
||||
#define PRINTF_NTOA_BUFFER_SIZE 32U
|
||||
#define PRINTF_NTOA_BUFFER_SIZE 32U
|
||||
|
||||
// ftoa conversion buffer size, this must be big enough to hold
|
||||
// one converted float number including padded zeros (dynamically created on stack)
|
||||
// 32 byte is a good default
|
||||
#define PRINTF_FTOA_BUFFER_SIZE 32U
|
||||
#define PRINTF_FTOA_BUFFER_SIZE 32U
|
||||
|
||||
// define this to support floating point (%f)
|
||||
#define PRINTF_SUPPORT_FLOAT
|
||||
|
|
@ -76,341 +78,318 @@ namespace utils {
|
|||
// ptrdiff_t is normally defined in <stddef.h> as long or long long type
|
||||
#define PRINTF_SUPPORT_PTRDIFF_T
|
||||
|
||||
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// internal flag definitions
|
||||
#define FLAGS_ZEROPAD (1U << 0U)
|
||||
#define FLAGS_LEFT (1U << 1U)
|
||||
#define FLAGS_PLUS (1U << 2U)
|
||||
#define FLAGS_SPACE (1U << 3U)
|
||||
#define FLAGS_HASH (1U << 4U)
|
||||
#define FLAGS_UPPERCASE (1U << 5U)
|
||||
#define FLAGS_CHAR (1U << 6U)
|
||||
#define FLAGS_SHORT (1U << 7U)
|
||||
#define FLAGS_LONG (1U << 8U)
|
||||
#define FLAGS_LONG_LONG (1U << 9U)
|
||||
#define FLAGS_ZEROPAD (1U << 0U)
|
||||
#define FLAGS_LEFT (1U << 1U)
|
||||
#define FLAGS_PLUS (1U << 2U)
|
||||
#define FLAGS_SPACE (1U << 3U)
|
||||
#define FLAGS_HASH (1U << 4U)
|
||||
#define FLAGS_UPPERCASE (1U << 5U)
|
||||
#define FLAGS_CHAR (1U << 6U)
|
||||
#define FLAGS_SHORT (1U << 7U)
|
||||
#define FLAGS_LONG (1U << 8U)
|
||||
#define FLAGS_LONG_LONG (1U << 9U)
|
||||
#define FLAGS_PRECISION (1U << 10U)
|
||||
#define FLAGS_WIDTH (1U << 11U)
|
||||
|
||||
#define FLAGS_WIDTH (1U << 11U)
|
||||
|
||||
// output function type
|
||||
typedef void (*out_fct_type)(char character, void* buffer, size_t idx, size_t maxlen);
|
||||
|
||||
|
||||
// wrapper (used as buffer) for output function type
|
||||
typedef struct {
|
||||
void (*fct)(char character, void* arg);
|
||||
void* arg;
|
||||
void (*fct)(char character, void* arg);
|
||||
void* arg;
|
||||
} out_fct_wrap_type;
|
||||
|
||||
|
||||
// internal buffer output
|
||||
static inline void _out_buffer(char character, void* buffer, size_t idx, size_t maxlen)
|
||||
{
|
||||
if (idx < maxlen) {
|
||||
((char*)buffer)[idx] = character;
|
||||
}
|
||||
static inline void _out_buffer(char character, void* buffer, size_t idx, size_t maxlen) {
|
||||
if (idx < maxlen) {
|
||||
((char*)buffer)[idx] = character;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// internal null output
|
||||
static inline void _out_null(char character, void* buffer, size_t idx, size_t maxlen)
|
||||
{
|
||||
(void)character; (void)buffer; (void)idx; (void)maxlen;
|
||||
static inline void _out_null(char character, void* buffer, size_t idx, size_t maxlen) {
|
||||
(void)character;
|
||||
(void)buffer;
|
||||
(void)idx;
|
||||
(void)maxlen;
|
||||
}
|
||||
|
||||
|
||||
// internal output function wrapper
|
||||
static inline void _out_fct(char character, void* buffer, size_t idx, size_t maxlen)
|
||||
{
|
||||
(void)idx; (void)maxlen;
|
||||
// buffer is the output fct pointer
|
||||
((out_fct_wrap_type*)buffer)->fct(character, ((out_fct_wrap_type*)buffer)->arg);
|
||||
static inline void _out_fct(char character, void* buffer, size_t idx, size_t maxlen) {
|
||||
(void)idx;
|
||||
(void)maxlen;
|
||||
// buffer is the output fct pointer
|
||||
((out_fct_wrap_type*)buffer)->fct(character, ((out_fct_wrap_type*)buffer)->arg);
|
||||
}
|
||||
|
||||
|
||||
// internal strlen
|
||||
// \return The length of the string (excluding the terminating 0)
|
||||
static inline unsigned int _strlen(const char* str)
|
||||
{
|
||||
const char* s;
|
||||
for (s = str; *s; ++s);
|
||||
return (unsigned int)(s - str);
|
||||
static inline unsigned int _strlen(const char* str) {
|
||||
const char* s;
|
||||
for (s = str; *s; ++s)
|
||||
;
|
||||
return (unsigned int)(s - str);
|
||||
}
|
||||
|
||||
|
||||
// internal test if char is a digit (0-9)
|
||||
// \return true if char is a digit
|
||||
static inline bool _is_digit(char ch)
|
||||
{
|
||||
return (ch >= '0') && (ch <= '9');
|
||||
}
|
||||
|
||||
static inline bool _is_digit(char ch) { return (ch >= '0') && (ch <= '9'); }
|
||||
|
||||
// internal ASCII string to unsigned int conversion
|
||||
static inline unsigned int _atoi(const char** str)
|
||||
{
|
||||
unsigned int i = 0U;
|
||||
while (_is_digit(**str)) {
|
||||
i = i * 10U + (unsigned int)(*((*str)++) - '0');
|
||||
}
|
||||
return i;
|
||||
static inline unsigned int _atoi(const char** str) {
|
||||
unsigned int i = 0U;
|
||||
while (_is_digit(**str)) {
|
||||
i = i * 10U + (unsigned int)(*((*str)++) - '0');
|
||||
}
|
||||
return i;
|
||||
}
|
||||
|
||||
|
||||
// internal itoa format
|
||||
static inline size_t _ntoa_format(out_fct_type out, char* buffer, size_t idx, size_t maxlen, char* buf, size_t len, bool negative, unsigned int base, unsigned int prec, unsigned int width, unsigned int flags)
|
||||
{
|
||||
const size_t start_idx = idx;
|
||||
static inline size_t _ntoa_format(out_fct_type out, char* buffer, size_t idx, size_t maxlen, char* buf, size_t len, bool negative, unsigned int base,
|
||||
unsigned int prec, unsigned int width, unsigned int flags) {
|
||||
const size_t start_idx = idx;
|
||||
|
||||
// pad leading zeros
|
||||
while (!(flags & FLAGS_LEFT) && (len < prec) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = '0';
|
||||
}
|
||||
while (!(flags & FLAGS_LEFT) && (flags & FLAGS_ZEROPAD) && (len < width) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = '0';
|
||||
}
|
||||
// pad leading zeros
|
||||
while (!(flags & FLAGS_LEFT) && (len < prec) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = '0';
|
||||
}
|
||||
while (!(flags & FLAGS_LEFT) && (flags & FLAGS_ZEROPAD) && (len < width) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = '0';
|
||||
}
|
||||
|
||||
// handle hash
|
||||
if (flags & FLAGS_HASH) {
|
||||
if (((len == prec) || (len == width)) && (len > 0U)) {
|
||||
len--;
|
||||
if ((base == 16U) && (len > 0U)) {
|
||||
// handle hash
|
||||
if (flags & FLAGS_HASH) {
|
||||
if (((len == prec) || (len == width)) && (len > 0U)) {
|
||||
len--;
|
||||
if ((base == 16U) && (len > 0U)) {
|
||||
len--;
|
||||
}
|
||||
}
|
||||
if ((base == 16U) && !(flags & FLAGS_UPPERCASE) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = 'x';
|
||||
}
|
||||
if ((base == 16U) && (flags & FLAGS_UPPERCASE) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = 'X';
|
||||
}
|
||||
if (len < PRINTF_NTOA_BUFFER_SIZE) {
|
||||
buf[len++] = '0';
|
||||
}
|
||||
}
|
||||
|
||||
// handle sign
|
||||
if ((len == width) && (negative || (flags & FLAGS_PLUS) || (flags & FLAGS_SPACE))) {
|
||||
len--;
|
||||
}
|
||||
}
|
||||
if ((base == 16U) && !(flags & FLAGS_UPPERCASE) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = 'x';
|
||||
}
|
||||
if ((base == 16U) && (flags & FLAGS_UPPERCASE) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = 'X';
|
||||
}
|
||||
if (len < PRINTF_NTOA_BUFFER_SIZE) {
|
||||
buf[len++] = '0';
|
||||
if (negative) {
|
||||
buf[len++] = '-';
|
||||
} else if (flags & FLAGS_PLUS) {
|
||||
buf[len++] = '+'; // ignore the space if the '+' exists
|
||||
} else if (flags & FLAGS_SPACE) {
|
||||
buf[len++] = ' ';
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// handle sign
|
||||
if ((len == width) && (negative || (flags & FLAGS_PLUS) || (flags & FLAGS_SPACE))) {
|
||||
len--;
|
||||
}
|
||||
if (len < PRINTF_NTOA_BUFFER_SIZE) {
|
||||
if (negative) {
|
||||
buf[len++] = '-';
|
||||
// pad spaces up to given width
|
||||
if (!(flags & FLAGS_LEFT) && !(flags & FLAGS_ZEROPAD)) {
|
||||
for (size_t i = len; i < width; i++) {
|
||||
out(' ', buffer, idx++, maxlen);
|
||||
}
|
||||
}
|
||||
else if (flags & FLAGS_PLUS) {
|
||||
buf[len++] = '+'; // ignore the space if the '+' exists
|
||||
}
|
||||
else if (flags & FLAGS_SPACE) {
|
||||
buf[len++] = ' ';
|
||||
}
|
||||
}
|
||||
|
||||
// pad spaces up to given width
|
||||
if (!(flags & FLAGS_LEFT) && !(flags & FLAGS_ZEROPAD)) {
|
||||
for (size_t i = len; i < width; i++) {
|
||||
out(' ', buffer, idx++, maxlen);
|
||||
// reverse string
|
||||
for (size_t i = 0U; i < len; i++) {
|
||||
out(buf[len - i - 1U], buffer, idx++, maxlen);
|
||||
}
|
||||
}
|
||||
|
||||
// reverse string
|
||||
for (size_t i = 0U; i < len; i++) {
|
||||
out(buf[len - i - 1U], buffer, idx++, maxlen);
|
||||
}
|
||||
|
||||
// append pad spaces up to given width
|
||||
if (flags & FLAGS_LEFT) {
|
||||
while (idx - start_idx < width) {
|
||||
out(' ', buffer, idx++, maxlen);
|
||||
// append pad spaces up to given width
|
||||
if (flags & FLAGS_LEFT) {
|
||||
while (idx - start_idx < width) {
|
||||
out(' ', buffer, idx++, maxlen);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return idx;
|
||||
return idx;
|
||||
}
|
||||
|
||||
|
||||
// internal itoa for 'long' type
|
||||
static inline size_t _ntoa_long(out_fct_type out, char* buffer, size_t idx, size_t maxlen, unsigned long value, bool negative, unsigned long base, unsigned int prec, unsigned int width, unsigned int flags)
|
||||
{
|
||||
char buf[PRINTF_NTOA_BUFFER_SIZE];
|
||||
size_t len = 0U;
|
||||
static inline size_t _ntoa_long(out_fct_type out, char* buffer, size_t idx, size_t maxlen, unsigned long value, bool negative, unsigned long base,
|
||||
unsigned int prec, unsigned int width, unsigned int flags) {
|
||||
char buf[PRINTF_NTOA_BUFFER_SIZE];
|
||||
size_t len = 0U;
|
||||
|
||||
// write if precision != 0 and value is != 0
|
||||
if (!(flags & FLAGS_PRECISION) || value) {
|
||||
do {
|
||||
const char digit = (char)(value % base);
|
||||
buf[len++] = digit < 10 ? '0' + digit : (flags & FLAGS_UPPERCASE ? 'A' : 'a') + digit - 10;
|
||||
value /= base;
|
||||
} while (value && (len < PRINTF_NTOA_BUFFER_SIZE));
|
||||
}
|
||||
// write if precision != 0 and value is != 0
|
||||
if (!(flags & FLAGS_PRECISION) || value) {
|
||||
do {
|
||||
const char digit = (char)(value % base);
|
||||
buf[len++] = digit < 10 ? '0' + digit : (flags & FLAGS_UPPERCASE ? 'A' : 'a') + digit - 10;
|
||||
value /= base;
|
||||
} while (value && (len < PRINTF_NTOA_BUFFER_SIZE));
|
||||
}
|
||||
|
||||
return _ntoa_format(out, buffer, idx, maxlen, buf, len, negative, (unsigned int)base, prec, width, flags);
|
||||
return _ntoa_format(out, buffer, idx, maxlen, buf, len, negative, (unsigned int)base, prec, width, flags);
|
||||
}
|
||||
|
||||
|
||||
// internal itoa for 'long long' type
|
||||
#if defined(PRINTF_SUPPORT_LONG_LONG)
|
||||
static inline size_t _ntoa_long_long(out_fct_type out, char* buffer, size_t idx, size_t maxlen, unsigned long long value, bool negative, unsigned long long base, unsigned int prec, unsigned int width, unsigned int flags)
|
||||
{
|
||||
char buf[PRINTF_NTOA_BUFFER_SIZE];
|
||||
size_t len = 0U;
|
||||
static inline size_t _ntoa_long_long(out_fct_type out, char* buffer, size_t idx, size_t maxlen, unsigned long long value, bool negative,
|
||||
unsigned long long base, unsigned int prec, unsigned int width, unsigned int flags) {
|
||||
char buf[PRINTF_NTOA_BUFFER_SIZE];
|
||||
size_t len = 0U;
|
||||
|
||||
// write if precision != 0 and value is != 0
|
||||
if (!(flags & FLAGS_PRECISION) || value) {
|
||||
do {
|
||||
const char digit = (char)(value % base);
|
||||
buf[len++] = digit < 10 ? '0' + digit : (flags & FLAGS_UPPERCASE ? 'A' : 'a') + digit - 10;
|
||||
value /= base;
|
||||
} while (value && (len < PRINTF_NTOA_BUFFER_SIZE));
|
||||
}
|
||||
// write if precision != 0 and value is != 0
|
||||
if (!(flags & FLAGS_PRECISION) || value) {
|
||||
do {
|
||||
const char digit = (char)(value % base);
|
||||
buf[len++] = digit < 10 ? '0' + digit : (flags & FLAGS_UPPERCASE ? 'A' : 'a') + digit - 10;
|
||||
value /= base;
|
||||
} while (value && (len < PRINTF_NTOA_BUFFER_SIZE));
|
||||
}
|
||||
|
||||
return _ntoa_format(out, buffer, idx, maxlen, buf, len, negative, (unsigned int)base, prec, width, flags);
|
||||
return _ntoa_format(out, buffer, idx, maxlen, buf, len, negative, (unsigned int)base, prec, width, flags);
|
||||
}
|
||||
#endif // PRINTF_SUPPORT_LONG_LONG
|
||||
|
||||
|
||||
#if defined(PRINTF_SUPPORT_FLOAT)
|
||||
static inline size_t _ftoa(out_fct_type out, char* buffer, size_t idx, size_t maxlen, double value, unsigned int prec, unsigned int width, unsigned int flags)
|
||||
{
|
||||
char buf[PRINTF_FTOA_BUFFER_SIZE];
|
||||
size_t len = 0U;
|
||||
double diff = 0.0;
|
||||
static inline size_t _ftoa(out_fct_type out, char* buffer, size_t idx, size_t maxlen, double value, unsigned int prec, unsigned int width,
|
||||
unsigned int flags) {
|
||||
char buf[PRINTF_FTOA_BUFFER_SIZE];
|
||||
size_t len = 0U;
|
||||
double diff = 0.0;
|
||||
|
||||
// if input is larger than thres_max, revert to exponential
|
||||
const double thres_max = (double)0x7FFFFFFF;
|
||||
// if input is larger than thres_max, revert to exponential
|
||||
const double thres_max = (double)0x7FFFFFFF;
|
||||
|
||||
// powers of 10
|
||||
static const double pow10[] = { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000 };
|
||||
// powers of 10
|
||||
static const double pow10[] = {1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000};
|
||||
|
||||
// test for negative
|
||||
bool negative = false;
|
||||
if (value < 0) {
|
||||
negative = true;
|
||||
value = 0 - value;
|
||||
}
|
||||
|
||||
// set default precision to 6, if not set explicitly
|
||||
if (!(flags & FLAGS_PRECISION)) {
|
||||
prec = 6U;
|
||||
}
|
||||
// limit precision to 9, cause a prec >= 10 can lead to overflow errors
|
||||
while ((len < PRINTF_FTOA_BUFFER_SIZE) && (prec > 9U)) {
|
||||
buf[len++] = '0';
|
||||
prec--;
|
||||
}
|
||||
|
||||
int whole = (int)value;
|
||||
double tmp = (value - whole) * pow10[prec];
|
||||
unsigned long frac = (unsigned long)tmp;
|
||||
diff = tmp - frac;
|
||||
|
||||
if (diff > 0.5) {
|
||||
++frac;
|
||||
// handle rollover, e.g. case 0.99 with prec 1 is 1.0
|
||||
if (frac >= pow10[prec]) {
|
||||
frac = 0;
|
||||
++whole;
|
||||
// test for negative
|
||||
bool negative = false;
|
||||
if (value < 0) {
|
||||
negative = true;
|
||||
value = 0 - value;
|
||||
}
|
||||
}
|
||||
else if ((diff == 0.5) && ((frac == 0U) || (frac & 1U))) {
|
||||
// if halfway, round up if odd, OR if last digit is 0
|
||||
++frac;
|
||||
}
|
||||
|
||||
// TBD: for very large numbers switch back to native sprintf for exponentials. Anyone want to write code to replace this?
|
||||
// Normal printf behavior is to print EVERY whole number digit which can be 100s of characters overflowing your buffers == bad
|
||||
if (value > thres_max) {
|
||||
return 0U;
|
||||
}
|
||||
// set default precision to 6, if not set explicitly
|
||||
if (!(flags & FLAGS_PRECISION)) {
|
||||
prec = 6U;
|
||||
}
|
||||
// limit precision to 9, cause a prec >= 10 can lead to overflow errors
|
||||
while ((len < PRINTF_FTOA_BUFFER_SIZE) && (prec > 9U)) {
|
||||
buf[len++] = '0';
|
||||
prec--;
|
||||
}
|
||||
|
||||
int whole = (int)value;
|
||||
double tmp = (value - whole) * pow10[prec];
|
||||
unsigned long frac = (unsigned long)tmp;
|
||||
diff = tmp - frac;
|
||||
|
||||
if (prec == 0U) {
|
||||
diff = value - (double)whole;
|
||||
if (diff > 0.5) {
|
||||
// greater than 0.5, round up, e.g. 1.6 -> 2
|
||||
++whole;
|
||||
++frac;
|
||||
// handle rollover, e.g. case 0.99 with prec 1 is 1.0
|
||||
if (frac >= pow10[prec]) {
|
||||
frac = 0;
|
||||
++whole;
|
||||
}
|
||||
} else if ((diff == 0.5) && ((frac == 0U) || (frac & 1U))) {
|
||||
// if halfway, round up if odd, OR if last digit is 0
|
||||
++frac;
|
||||
}
|
||||
else if ((diff == 0.5) && (whole & 1)) {
|
||||
// exactly 0.5 and ODD, then round up
|
||||
// 1.5 -> 2, but 2.5 -> 2
|
||||
++whole;
|
||||
|
||||
// TBD: for very large numbers switch back to native sprintf for exponentials. Anyone want to write code to replace this?
|
||||
// Normal printf behavior is to print EVERY whole number digit which can be 100s of characters overflowing your buffers == bad
|
||||
if (value > thres_max) {
|
||||
return 0U;
|
||||
}
|
||||
}
|
||||
else {
|
||||
unsigned int count = prec;
|
||||
// now do fractional part, as an unsigned number
|
||||
|
||||
if (prec == 0U) {
|
||||
diff = value - (double)whole;
|
||||
if (diff > 0.5) {
|
||||
// greater than 0.5, round up, e.g. 1.6 -> 2
|
||||
++whole;
|
||||
} else if ((diff == 0.5) && (whole & 1)) {
|
||||
// exactly 0.5 and ODD, then round up
|
||||
// 1.5 -> 2, but 2.5 -> 2
|
||||
++whole;
|
||||
}
|
||||
} else {
|
||||
unsigned int count = prec;
|
||||
// now do fractional part, as an unsigned number
|
||||
while (len < PRINTF_FTOA_BUFFER_SIZE) {
|
||||
--count;
|
||||
buf[len++] = (char)(48U + (frac % 10U));
|
||||
if (!(frac /= 10U)) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
// add extra 0s
|
||||
while ((len < PRINTF_FTOA_BUFFER_SIZE) && (count-- > 0U)) {
|
||||
buf[len++] = '0';
|
||||
}
|
||||
if (len < PRINTF_FTOA_BUFFER_SIZE) {
|
||||
// add decimal
|
||||
buf[len++] = '.';
|
||||
}
|
||||
}
|
||||
|
||||
// do whole part, number is reversed
|
||||
while (len < PRINTF_FTOA_BUFFER_SIZE) {
|
||||
--count;
|
||||
buf[len++] = (char)(48U + (frac % 10U));
|
||||
if (!(frac /= 10U)) {
|
||||
break;
|
||||
}
|
||||
buf[len++] = (char)(48 + (whole % 10));
|
||||
if (!(whole /= 10)) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
// add extra 0s
|
||||
while ((len < PRINTF_FTOA_BUFFER_SIZE) && (count-- > 0U)) {
|
||||
buf[len++] = '0';
|
||||
|
||||
// pad leading zeros
|
||||
while (!(flags & FLAGS_LEFT) && (flags & FLAGS_ZEROPAD) && (len < width) && (len < PRINTF_FTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = '0';
|
||||
}
|
||||
|
||||
// handle sign
|
||||
if ((len == width) && (negative || (flags & FLAGS_PLUS) || (flags & FLAGS_SPACE))) {
|
||||
len--;
|
||||
}
|
||||
if (len < PRINTF_FTOA_BUFFER_SIZE) {
|
||||
// add decimal
|
||||
buf[len++] = '.';
|
||||
if (negative) {
|
||||
buf[len++] = '-';
|
||||
} else if (flags & FLAGS_PLUS) {
|
||||
buf[len++] = '+'; // ignore the space if the '+' exists
|
||||
} else if (flags & FLAGS_SPACE) {
|
||||
buf[len++] = ' ';
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// do whole part, number is reversed
|
||||
while (len < PRINTF_FTOA_BUFFER_SIZE) {
|
||||
buf[len++] = (char)(48 + (whole % 10));
|
||||
if (!(whole /= 10)) {
|
||||
break;
|
||||
// pad spaces up to given width
|
||||
if (!(flags & FLAGS_LEFT) && !(flags & FLAGS_ZEROPAD)) {
|
||||
for (size_t i = len; i < width; i++) {
|
||||
out(' ', buffer, idx++, maxlen);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// pad leading zeros
|
||||
while (!(flags & FLAGS_LEFT) && (flags & FLAGS_ZEROPAD) && (len < width) && (len < PRINTF_FTOA_BUFFER_SIZE)) {
|
||||
buf[len++] = '0';
|
||||
}
|
||||
|
||||
// handle sign
|
||||
if ((len == width) && (negative || (flags & FLAGS_PLUS) || (flags & FLAGS_SPACE))) {
|
||||
len--;
|
||||
}
|
||||
if (len < PRINTF_FTOA_BUFFER_SIZE) {
|
||||
if (negative) {
|
||||
buf[len++] = '-';
|
||||
// reverse string
|
||||
for (size_t i = 0U; i < len; i++) {
|
||||
out(buf[len - i - 1U], buffer, idx++, maxlen);
|
||||
}
|
||||
else if (flags & FLAGS_PLUS) {
|
||||
buf[len++] = '+'; // ignore the space if the '+' exists
|
||||
}
|
||||
else if (flags & FLAGS_SPACE) {
|
||||
buf[len++] = ' ';
|
||||
}
|
||||
}
|
||||
|
||||
// pad spaces up to given width
|
||||
if (!(flags & FLAGS_LEFT) && !(flags & FLAGS_ZEROPAD)) {
|
||||
for (size_t i = len; i < width; i++) {
|
||||
out(' ', buffer, idx++, maxlen);
|
||||
// append pad spaces up to given width
|
||||
if (flags & FLAGS_LEFT) {
|
||||
while (idx < width) {
|
||||
out(' ', buffer, idx++, maxlen);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// reverse string
|
||||
for (size_t i = 0U; i < len; i++) {
|
||||
out(buf[len - i - 1U], buffer, idx++, maxlen);
|
||||
}
|
||||
|
||||
// append pad spaces up to given width
|
||||
if (flags & FLAGS_LEFT) {
|
||||
while (idx < width) {
|
||||
out(' ', buffer, idx++, maxlen);
|
||||
}
|
||||
}
|
||||
|
||||
return idx;
|
||||
return idx;
|
||||
}
|
||||
#endif // PRINTF_SUPPORT_FLOAT
|
||||
|
||||
#if 0
|
||||
|
||||
// internal vsnprintf
|
||||
static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, const char* format, CPUState &cpu, MemState &mem, module::vargs &va)
|
||||
static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, const char* format, VaList* va_list)
|
||||
{
|
||||
unsigned int flags, width, precision, n;
|
||||
size_t idx = 0U;
|
||||
|
|
@ -453,7 +432,8 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
width = _atoi(&format);
|
||||
}
|
||||
else if (*format == '*') {
|
||||
const int w = va.next<int>(cpu, mem);
|
||||
const int w = vaArgInteger(va_list); // const int w = va.next<int>(cpu, mem);
|
||||
|
||||
if (w < 0) {
|
||||
flags |= FLAGS_LEFT; // reverse padding
|
||||
width = (unsigned int)-w;
|
||||
|
|
@ -473,7 +453,7 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
precision = _atoi(&format);
|
||||
}
|
||||
else if (*format == '*') {
|
||||
precision = (unsigned int)va.next<int>(cpu, mem);
|
||||
precision = vaArgInteger(va_list); // precision = (unsigned int)va.next<int>(cpu, mem);
|
||||
format++;
|
||||
}
|
||||
}
|
||||
|
|
@ -554,16 +534,19 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
// signed
|
||||
if (flags & FLAGS_LONG_LONG) {
|
||||
#if defined(PRINTF_SUPPORT_LONG_LONG)
|
||||
const long long value = va.next<long long>(cpu, mem);
|
||||
auto value = vaArgLongLong(va_list); // const long long value = va.next<long long>(cpu, mem);
|
||||
idx = _ntoa_long_long(out, buffer, idx, maxlen, (unsigned long long)(value > 0 ? value : 0 - value), value < 0, base, precision, width, flags);
|
||||
#endif
|
||||
}
|
||||
else if (flags & FLAGS_LONG) {
|
||||
const long value = va.next<long>(cpu, mem);
|
||||
auto value = vaArgLong(va_list); // const long value = va.next<long>(cpu, mem);
|
||||
idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned long)(value > 0 ? value : 0 - value), value < 0, base, precision, width, flags);
|
||||
}
|
||||
else {
|
||||
const int value = (flags & FLAGS_CHAR) ? (char)va.next<int>(cpu, mem) : (flags & FLAGS_SHORT) ? (short int)va.next<int>(cpu, mem): va.next<int>(cpu, mem);
|
||||
//const int value = (flags & FLAGS_CHAR) ? (char)va.next<int>(cpu, mem) : (flags & FLAGS_SHORT) ? (short int)va.next<int>(cpu, mem): va.next<int>(cpu, mem);
|
||||
const int value = (flags & FLAGS_CHAR) ? static_cast<char>(vaArgInteger(va_list))
|
||||
: (flags & FLAGS_SHORT) ? static_cast<int16_t>(vaArgInteger(va_list))
|
||||
: vaArgInteger(va_list);
|
||||
idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned int)(value > 0 ? value : 0 - value), value < 0, base, precision, width, flags);
|
||||
}
|
||||
}
|
||||
|
|
@ -571,15 +554,20 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
// unsigned
|
||||
if (flags & FLAGS_LONG_LONG) {
|
||||
#if defined(PRINTF_SUPPORT_LONG_LONG)
|
||||
idx = _ntoa_long_long(out, buffer, idx, maxlen, va.next<unsigned long long>(cpu, mem), false, base, precision, width, flags);
|
||||
//idx = _ntoa_long_long(out, buffer, idx, maxlen, va.next<unsigned long long>(cpu, mem), false, base, precision, width, flags);
|
||||
idx = _ntoa_long_long(out, buffer, idx, maxlen, static_cast<u64>(vaArgLongLong(va_list)), false, base, precision, width, flags);
|
||||
#endif
|
||||
}
|
||||
else if (flags & FLAGS_LONG) {
|
||||
idx = _ntoa_long(out, buffer, idx, maxlen, va.next<unsigned long>(cpu, mem), false, base, precision, width, flags);
|
||||
// idx = _ntoa_long(out, buffer, idx, maxlen, va.next<unsigned long>(cpu, mem), false, base, precision, width, flags);
|
||||
idx = _ntoa_long(out, buffer, idx, maxlen, static_cast<u32>(vaArgLong(va_list)), false, base, precision, width, flags);
|
||||
}
|
||||
else {
|
||||
const unsigned int value = (flags & FLAGS_CHAR) ? (unsigned char)va.next<unsigned int>(cpu, mem) : (flags & FLAGS_SHORT) ?
|
||||
(unsigned short int)va.next<unsigned int>(cpu, mem) : va.next<unsigned int>(cpu, mem);
|
||||
//const unsigned int value = (flags & FLAGS_CHAR) ? (unsigned char)va.next<unsigned int>(cpu, mem) : (flags & FLAGS_SHORT) ?
|
||||
// (unsigned short int)va.next<unsigned int>(cpu, mem) : va.next<unsigned int>(cpu, mem);
|
||||
const unsigned int value = (flags & FLAGS_CHAR) ? static_cast<u08>(vaArgInteger(va_list))
|
||||
: (flags & FLAGS_SHORT) ? static_cast<u16>(vaArgInteger(va_list))
|
||||
: static_cast<u32>(vaArgInteger(va_list));
|
||||
idx = _ntoa_long(out, buffer, idx, maxlen, value, false, base, precision, width, flags);
|
||||
}
|
||||
}
|
||||
|
|
@ -589,7 +577,8 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
#if defined(PRINTF_SUPPORT_FLOAT)
|
||||
case 'f' :
|
||||
case 'F' :
|
||||
idx = _ftoa(out, buffer, idx, maxlen, va.next<double>(cpu, mem), precision, width, flags);
|
||||
//idx = _ftoa(out, buffer, idx, maxlen, va.next<double>(cpu, mem), precision, width, flags);
|
||||
idx = _ftoa(out, buffer, idx, maxlen, vaArgDouble(va_list), precision, width, flags);
|
||||
format++;
|
||||
break;
|
||||
#endif // PRINTF_SUPPORT_FLOAT
|
||||
|
|
@ -602,7 +591,8 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
}
|
||||
}
|
||||
// char output
|
||||
out((char)va.next<int>(cpu, mem), buffer, idx++, maxlen);
|
||||
//out((char)va.next<int>(cpu, mem), buffer, idx++, maxlen);
|
||||
out(static_cast<char>(vaArgInteger(va_list)), buffer, idx++, maxlen);
|
||||
// post padding
|
||||
if (flags & FLAGS_LEFT) {
|
||||
while (l++ < width) {
|
||||
|
|
@ -614,7 +604,7 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
}
|
||||
|
||||
case 's' : {
|
||||
const char *p = va.next<Ptr<char>>(cpu, mem).get(mem);
|
||||
const char* p = vaArgPtr<const char>(va_list); // const char *p = va.next<Ptr<char>>(cpu, mem).get(mem);
|
||||
p = p != nullptr ? p : "(null)";
|
||||
unsigned int l = _strlen(p);
|
||||
// pre padding
|
||||
|
|
@ -646,11 +636,15 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
#if defined(PRINTF_SUPPORT_LONG_LONG)
|
||||
const bool is_ll = sizeof(uintptr_t) == sizeof(long long);
|
||||
if (is_ll) {
|
||||
idx = _ntoa_long_long(out, buffer, idx, maxlen, (uintptr_t)va.next<Ptr<void>>(cpu, mem).address(), false, 16U, precision, width, flags);
|
||||
//idx = _ntoa_long_long(out, buffer, idx, maxlen, (uintptr_t)va.next<Ptr<void>>(cpu, mem).address(), false, 16U, precision, width, flags);
|
||||
idx = _ntoa_long_long(out, buffer, idx, maxlen, reinterpret_cast<uintptr_t>(vaArgPtr<void>(va_list)), false, 16U, precision, width, flags);
|
||||
}
|
||||
else {
|
||||
#endif
|
||||
idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned long)((uintptr_t)va.next<Ptr<void>>(cpu, mem).address()), false, 16U, precision, width, flags);
|
||||
//idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned long)((uintptr_t)va.next<Ptr<void>>(cpu, mem).address()), false, 16U, precision, width, flags);
|
||||
idx = _ntoa_long(out, buffer, idx, maxlen, static_cast<uint32_t>(reinterpret_cast<uintptr_t>(vaArgPtr<void>(va_list))), false, 16U,
|
||||
precision, width,
|
||||
flags);
|
||||
#if defined(PRINTF_SUPPORT_LONG_LONG)
|
||||
}
|
||||
#endif
|
||||
|
|
@ -677,6 +671,7 @@ static inline int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen
|
|||
return (int)idx;
|
||||
}
|
||||
|
||||
#if 0
|
||||
///////////////////////////////////////////////////////
|
||||
|
||||
/**
|
||||
|
|
@ -708,4 +703,4 @@ inline int snprintf(char* buffer, size_t count, const char* format, CPUState &cp
|
|||
|
||||
#endif
|
||||
|
||||
}
|
||||
} // namespace Emulator::HLE::Libraries::LibC
|
||||
|
|
|
|||
|
|
@ -0,0 +1,70 @@
|
|||
#include <types.h>
|
||||
|
||||
namespace Emulator::HLE::Libraries::LibC {
|
||||
|
||||
// https://stackoverflow.com/questions/4958384/what-is-the-format-of-the-x86-64-va-list-structure
|
||||
|
||||
struct VaList {
|
||||
u32 gp_offset;
|
||||
u32 fp_offset;
|
||||
void* overflow_arg_area;
|
||||
void* reg_save_area;
|
||||
};
|
||||
|
||||
template <class T, uint32_t Size>
|
||||
T vaArgRegSaveAreaGp(VaList* l) {
|
||||
auto* addr = reinterpret_cast<T*>(static_cast<uint8_t*>(l->reg_save_area) + l->gp_offset);
|
||||
l->gp_offset += Size;
|
||||
return *addr;
|
||||
}
|
||||
template <class T, uint64_t Align, uint64_t Size>
|
||||
T vaArgOverflowArgArea(VaList* l) {
|
||||
auto ptr = ((reinterpret_cast<uint64_t>(l->overflow_arg_area) + (Align - 1)) & ~(Align - 1));
|
||||
auto* addr = reinterpret_cast<T*>(ptr);
|
||||
l->overflow_arg_area = reinterpret_cast<void*>(ptr + Size);
|
||||
return *addr;
|
||||
}
|
||||
|
||||
template <class T, uint32_t Size>
|
||||
T vaArgRegSaveAreaFp(VaList* l) {
|
||||
auto* addr = reinterpret_cast<T*>(static_cast<uint8_t*>(l->reg_save_area) + l->fp_offset);
|
||||
l->fp_offset += Size;
|
||||
return *addr;
|
||||
}
|
||||
|
||||
inline int vaArgInteger(VaList* l) {
|
||||
if (l->gp_offset <= 40) {
|
||||
return vaArgRegSaveAreaGp<int, 8>(l);
|
||||
}
|
||||
return vaArgOverflowArgArea<int, 1, 8>(l);
|
||||
}
|
||||
|
||||
inline long long vaArgLongLong(VaList* l) {
|
||||
if (l->gp_offset <= 40) {
|
||||
return vaArgRegSaveAreaGp<long long, 8>(l);
|
||||
}
|
||||
return vaArgOverflowArgArea<long long, 1, 8>(l);
|
||||
}
|
||||
inline long vaArgLong(VaList* l) {
|
||||
if (l->gp_offset <= 40) {
|
||||
return vaArgRegSaveAreaGp<long, 8>(l);
|
||||
}
|
||||
return vaArgOverflowArgArea<long, 1, 8>(l);
|
||||
}
|
||||
|
||||
inline double vaArgDouble(VaList* l) {
|
||||
if (l->fp_offset <= 160) {
|
||||
return vaArgRegSaveAreaFp<double, 16>(l);
|
||||
}
|
||||
return vaArgOverflowArgArea<double, 1, 8>(l);
|
||||
}
|
||||
|
||||
template <class T>
|
||||
T* vaArgPtr(VaList* l) {
|
||||
if (l->gp_offset <= 40) {
|
||||
return vaArgRegSaveAreaGp<T*, 8>(l);
|
||||
}
|
||||
return vaArgOverflowArgArea<T*, 1, 8>(l);
|
||||
}
|
||||
|
||||
} // namespace Emulator::HLE::Libraries::LibC
|
||||
Loading…
Reference in New Issue