gbdev/rgbds
1
0
Fork 0
mirror of https://github.com/gbdev/rgbds.git synced 2025-11-20 10:12:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

OPT L acts like -L and *dis*ables optimizing LD to LDH

Browse Source 
Fixes #867
This commit is contained in:
Rangi
2021-05-01 22:54:26 -04:00
committed by Eldred Habert
parent 04788e15af
commit 665eb916a2
4 changed files with 8 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/asm/opt.c
View File

@@ -81,7 +81,7 @@ void opt_Parse(char *s)
case 'L':
if (s[1] == '\0')
opt_L(true);
opt_L(false);
else
error("Option 'L' does not take an argument\n");
break;
@@ -97,7 +97,7 @@ void opt_Parse(char *s)
switch (s[1]) {
case 'L':
if (s[2] == '\0')
opt_L(false);
opt_L(true);
else
error("Option '!L' does not take an argument\n");
break;

4
src/asm/rgbasm.5
View File

@@ -1946,14 +1946,14 @@ can be used to change some of the options during assembling from within the sour
takes a comma-separated list of options as its argument:
.Bd -literal -offset indent
PUSHO
OPT g.oOX, Wdiv, !L ; acts like command-line -g.oOX -Wdiv and omitting -L
OPT g.oOX, Wdiv, L ; acts like command-line -g.oOX -Wdiv -L
DW `..ooOOXX ; uses the graphics constant characters from OPT g
PRINTLN $80000000/-1 ; prints a warning about division
LD [$FF88], A ; encoded as LD, not LDH
POPO
DW `00112233 ; uses the default graphics constant characters
PRINTLN $80000000/-1 ; no warning by default
LD [$FF88], A ; optimized to use LDH if -L was passed
LD [$FF88], A ; optimized to use LDH by default
.Ed
.Pp
The options that OPT can modify are currently:

4
test/asm/opt.asm
View File

@@ -1,7 +1,9 @@
SECTION "test", ROM0
opt !L ; already the default, but tests parsing "!L"
pusho
opt p42, !L, Wno-div
opt p42, L, Wno-div
ds 1
ld [$ff88], a
println $8000_0000 / -1

2
test/asm/opt.err
View File

@@ -1,2 +1,2 @@
warning: opt.asm(12): [-Wdiv]
warning: opt.asm(14): [-Wdiv]
Division of -2147483648 by -1 yields -2147483648