From 60dde1d03ed43de1e7ef777e4198963620c73958 Mon Sep 17 00:00:00 2001 From: yenatch Date: Thu, 5 Sep 2013 14:24:29 -0400 Subject: [PATCH] forgot to commit engine/farcall.asm fixes 715a19fd593d10f3cd2e13d0dbc3f7713ebea4cf --- engine/farcall.asm | 55 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 engine/farcall.asm diff --git a/engine/farcall.asm b/engine/farcall.asm new file mode 100644 index 000000000..bdee3bf38 --- /dev/null +++ b/engine/farcall.asm @@ -0,0 +1,55 @@ +FarCall_de: ; 2d54 +; Call a:de. +; Preserves other registers. + + ld [hBuffer], a + ld a, [hROMBank] + push af + ld a, [hBuffer] + rst Bankswitch + call .de + jr ReturnFarCall + +.de + push de + ret +; 2d63 + + +FarCall_hl: ; 2d63 +; Call a:hl. +; Preserves other registers. + + ld [hBuffer], a + ld a, [hROMBank] + push af + ld a, [hBuffer] + rst Bankswitch + call Function2d82 +; 2d6e + +ReturnFarCall: ; 2d6e +; We want to retain the contents of f. +; To do this, we can pop to bc instead of af. + + ld a, b + ld [$cfb9], a + ld a, c + ld [$cfba], a + +; Restore the working bank. + pop bc + ld a, b + rst Bankswitch + + ld a, [$cfb9] + ld b, a + ld a, [$cfba] + ld c, a + ret +; 2d82 + +Function2d82: ; 2d82 + jp [hl] +; 2d83 +