gbdev/rgbds
1
0
Fork 0
mirror of https://github.com/gbdev/rgbds.git synced 2025-11-20 18:22:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

Implement PRINT and PRINTLN (#672)

Browse Source 
Fixes #669
Closes #368
Closes #624

Deprecate PRINTT, PRINTV, PRINTI, and PRINTF

Default STRFMT("%f") to 5 fractional digits like "{f:}"
Any use of string formatting will share this default
This commit is contained in:
Rangi
2021-01-01 20:37:32 -05:00
committed by GitHub
parent 9d2d5cfcfe
commit a70ecba06f
64 changed files with 325 additions and 316 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/asm/format.c
View File

@@ -220,12 +220,16 @@ void fmt_PrintNumber(char *buf, size_t bufLen, struct FormatSpec const *fmt, uin
}
} else if (fmt->type == 'f') {
/* Special case for fixed-point */
if (fmt->fracWidth) {
/* Default fractional width (C's is 6 for "%f"; here 5 is enough) */
uint8_t fracWidth = fmt->hasFrac ? fmt->fracWidth : 5;
if (fracWidth) {
char spec[16]; /* Max "%" + 5-char PRIu32 + ".%0255.f" + terminator */
snprintf(spec, sizeof(spec), "%%" PRIu32 ".%%0%d.f", fmt->fracWidth);
snprintf(spec, sizeof(spec), "%%" PRIu32 ".%%0%d.f", fracWidth);
snprintf(valueBuf, sizeof(valueBuf), spec, value >> 16,
(value % 65536) / 65536.0 * pow(10, fmt->fracWidth) + 0.5);
(value % 65536) / 65536.0 * pow(10, fracWidth) + 0.5);
} else {
snprintf(valueBuf, sizeof(valueBuf), "%" PRIu32, value >> 16);
}