Better handling of floats between -1.0 and 0.0

[fw/sdcc] / device / lib / _fs2schar.c

diff --git a/device/lib/_fs2schar.c b/device/lib/_fs2schar.c
index 1e955eb86194d63faa65bc3511bf2c3e18598bee..e027d08d5046745a5da0acc5b829ed418c68cf0a 100644 (file)
--- a/device/lib/_fs2schar.c
+++ b/device/lib/_fs2schar.c
@@ -31,6 +31,18 @@ static void dummy(void) _naked
        .globl  ___fs2schar
 ___fs2schar:
        lcall   ___fs2slong
+       push acc
+       jnz fs2schar_not_zero
+       mov a, dpl
+       jnz fs2schar_not_zero
+       mov a, dph
+       jnz fs2schar_not_zero
+       mov a, b
+       jnz fs2schar_not_zero
+       pop acc
+       ret
+fs2schar_not_zero:
+    pop acc
        jnb     sign_a, fs2schar_pos
 fs2schar_neg:
        cpl     a
@@ -45,7 +57,7 @@ fs2schar_neg:
        jnb     acc.7, fs2schar_maxval_neg
        ret
 fs2schar_maxval_neg:
-       mov     dpl, #0x00
+       mov     dpl, #0x80
        ret
 fs2schar_pos:
        jnz     fs2schar_maxval_pos