Convert floating to fixed point by rounding, not truncation

Fixes #678
2025-12-01 15:27:48 +00:00 · 2021-01-04 10:49:30 -05:00
parent 7e3fc1db03
commit 7ce5cf1595
6 changed files with 19 additions and 2 deletions
--- a/test/asm/fixed-point-precision.asm
+++ b/test/asm/fixed-point-precision.asm
@@ -0,0 +1,11 @@
+f1 = 3.1
+f2 = 5.2
+pm = MUL(f1, f2)
+pr = 16.12
+	println "`3.1`:   {9.6f:f1} -> ${08x:f1}"
+	println "`5.2`:   {9.6f:f2} -> ${08x:f2}"
+	println "`MUL`:   {9.6f:pm} -> ${08x:pm}"
+	println "`16.12`: {9.6f:pr} -> ${08x:pr}"
+
+fl = 6.283185
+	println "`6.283185`: {.6f:fl} -> ${08x:fl}"
--- a/test/asm/fixed-point-precision.err
+++ b/test/asm/fixed-point-precision.err
--- a/test/asm/fixed-point-precision.out
+++ b/test/asm/fixed-point-precision.out
@@ -0,0 +1,5 @@
+`3.1`:    3.100007 -> $0003199a
+`5.2`:    5.199997 -> $00053333
+`MUL`:   16.120026 -> $00101eba
+`16.12`: 16.119996 -> $00101eb8
+`6.283185`: 6.283188 -> $0006487f
--- a/test/asm/underscore-in-numeric-literal.out.bin
+++ b/test/asm/underscore-in-numeric-literal.out.bin