From 8682b7ce22bd03b72af1ccaf65a71046e5303f73 Mon Sep 17 00:00:00 2001 From: notaz Date: Fri, 20 May 2011 14:36:55 +0300 Subject: [PATCH] hexed: refactor init code a bit --- hexed/hexed.s | 12 +++++++++++- hexed/sega_gcc.s | 9 --------- 2 files changed, 11 insertions(+), 10 deletions(-) diff --git a/hexed/hexed.s b/hexed/hexed.s index b7d9186..418ca5c 100644 --- a/hexed/hexed.s +++ b/hexed/hexed.s @@ -262,8 +262,18 @@ txt_exc: main: /* make sure io port 2 is doing inputs */ move.b #0,(0xa1000b).l - /* mask irqs during init */ + /* make sure irqs are masked */ move.w #0x2700,sr + /* take care of TMSS */ + move.b (0xa10000).l,d0 + andi.b #0x0f,d0 + beq no_tmss + move.l #0x53454741,(0xa14000).l + /* want cart, not OS rom if cart pops in */ + move.w #1,(0xa14100).l + /* touch VDP after TMSS setup? */ + tst.w (0xc00004).l +no_tmss: .if COPY_TO_EXP /* copy to expansion device if magic number is set */ diff --git a/hexed/sega_gcc.s b/hexed/sega_gcc.s index 580d496..13cb300 100644 --- a/hexed/sega_gcc.s +++ b/hexed/sega_gcc.s @@ -20,18 +20,9 @@ .ascii " " .ascii "JUE " -* Check Version Number - move.b (0xa10000),%d0 - andi.b #0x0f,%d0 - beq WrongVersion -* Sega Security Code (SEGA) - move.l #0x53454741,(0xa14000) -WrongVersion: moveq #0,%d0 movea.l %d0,%a7 move %a7,%usp - - tst.w 0xC00004 bra main * INT: -- 2.39.5