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gbdk-2020

GameBoy Development Kit
download: https://git.y1.nz/archives/gbdk.tar.gz
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commit 5e8c980222fa22f96b6d78dee07ce5c7b722f707
parent 5ffa0548a6e8d0f1922acde64f3b63121ebd0711
Author: Toxa <untoxa@mail.ru>
Date:   Sun, 19 May 2024 19:38:03 +0300

SMS/GG/MSX: improve VDP_WRITE_DATA macro, no need to protect it with di/ei

Diffstat:

Mgbdk-lib/libc/targets/z80/gg/global.s4++--


Mgbdk-lib/libc/targets/z80/msxdos/global.s4++--


Mgbdk-lib/libc/targets/z80/sms/global.s4++--


3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/gbdk-lib/libc/targets/z80/gg/global.s b/gbdk-lib/libc/targets/z80/gg/global.s
@@ -281,10 +281,10 @@
 
 .macro VDP_WRITE_DATA regH regL
         ld a, regL
-        di
         out (#.VDP_DATA), a
         ld a, regH
-        ei
+        inc hl
+        dec hl
         out (#.VDP_DATA), a
 .endm
 
diff --git a/gbdk-lib/libc/targets/z80/msxdos/global.s b/gbdk-lib/libc/targets/z80/msxdos/global.s
@@ -344,10 +344,10 @@
 
 .macro VDP_WRITE_DATA regH regL
         ld a, regL
-        di
         out (#.VDP_DATA), a
         ld a, regH
-        ei
+        inc hl
+        dec hl
         out (#.VDP_DATA), a
 .endm
 
diff --git a/gbdk-lib/libc/targets/z80/sms/global.s b/gbdk-lib/libc/targets/z80/sms/global.s
@@ -283,10 +283,10 @@
 
 .macro VDP_WRITE_DATA regH regL
         ld a, regL
-        di
         out (#.VDP_DATA), a
         ld a, regH
-        ei
+        inc hl
+        dec hl
         out (#.VDP_DATA), a
 .endm

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