Leahnaya/Poke_Transporter_GB
1
0
Fork 0
mirror of https://github.com/GearsProgress/Poke_Transporter_GB.git synced 2026-08-28 11:45:14 -05:00
Code Issues Actions Packages Projects Releases Wiki Activity

Prepare for trouble... and make it.... fixed point?

Browse Source 
To protect the world from the soft float library...
To unite all arithmetic within our binary...
To denounce the evils of floating point precision...
To save more kilobytes - that's our vision....

(god this is cringe)

All floating point math has been eliminated, and replaced with
equivalent or near-equivalent fixed-point math.

sprite_data.cpp uses Q16, and get_rand_range uses a full Q32 to
ensure that the exact same results are generated as before, at
the cost of some inline assembly to do a umull (__aeabi_lmul is a
little excessive when the lower 32 bits are discarded)

This eliminates all of the expensive double precision float library,
saving a few kilobytes.

Additionally, the unneccessary parts of nanoprintf have been
disabled. There is no need for precision specifiers, long longs, or
floats.
This commit is contained in:
easyaspi314
2025-06-30 13:05:32 -04:00
parent 16345eff59
commit 750641c78f
4 changed files with 29 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
source/libstd_replacements.cpp
View File

@@ -1,4 +1,11 @@
#define NANOPRINTF_IMPLEMENTATION 1
// Remove what we don't need
#define NANOPRINTF_USE_FIELD_WIDTH_FORMAT_SPECIFIERS 0
#define NANOPRINTF_USE_PRECISION_FORMAT_SPECIFIERS 0
#define NANOPRINTF_USE_LARGE_FORMAT_SPECIFIERS 0
#define NANOPRINTF_USE_FLOAT_FORMAT_SPECIFIERS 0
#define NANOPRINTF_USE_BINARY_FORMAT_SPECIFIERS 0
#define NANOPRINTF_USE_WRITEBACK_FORMAT_SPECIFIERS 0
#include "libstd_replacements.h"
#include "libraries/nanoprintf/nanoprintf.h"