gbdev/rgbds
1
0
Fork 0
mirror of https://github.com/gbdev/rgbds.git synced 2025-12-01 15:27:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix two bugs with RGBASM fixed-point math (#1388)

Browse Source 
- Fixed-point formulas are implemented using IEEE-754 floating-point
  internally, which could give infinity or NaN values whose conversion
  to fixed-point integer was platform-dependent.
- Formatting fixed-point $8000_0000 (INT32_MIN, -2147483648) was
  not putting the negative sign in front.
This commit is contained in:
Sylvie
2024-03-31 12:53:20 -04:00
committed by GitHub
parent 6b5248f15b
commit 9ab3446d1a
5 changed files with 36 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
test/asm/format-extremes.out Normal file
View File

@@ -0,0 +1,4 @@
$7fffffff = &17777777777 = %01111111111111111111111111111111 = 2147483647U = +2147483647 = +32767.9999847412109375
$80000000 = &20000000000 = %10000000000000000000000000000000 = 2147483648U = -2147483648 = -32768.0000000000000000
$00000000 = &00000000000 = %00000000000000000000000000000000 = 0U = +0 = +0.0000000000000000
$ffffffff = &37777777777 = %11111111111111111111111111111111 = 4294967295U = -1 = -0.0000152587890625