From: Alan Cox <alan@etchedpixels.co.uk>
Date: Tue, 25 Nov 2014 17:57:26 +0000 (+0000)
Subject: msx2: update to new _discard logic
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=d6b630823d8d90ef9739f87b62414902b34d9710;p=FUZIX.git

msx2: update to new _discard logic
---

diff --git a/Kernel/platform-msx2/crt0.s b/Kernel/platform-msx2/crt0.s
index 1765f369..da3f1814 100644
--- a/Kernel/platform-msx2/crt0.s
+++ b/Kernel/platform-msx2/crt0.s
@@ -7,7 +7,6 @@
 	        .area _CODE2
 		.area _VIDEO
 	        .area _CONST
-		.area _DISCARD
 	        .area _DATA
 	        .area _INITIALIZED
 	        .area _BSEG
@@ -19,6 +18,7 @@
 	        .area _GSINIT
 	        .area _GSFINAL
 	        .area _COMMONMEM
+		.area _DISCARD
 
         	; imported symbols
         	.globl _fuzix_main
@@ -26,6 +26,8 @@
 	        .globl init_hardware
 	        .globl s__DATA
 	        .globl l__DATA
+	        .globl s__DISCARD
+	        .globl l__DISCARD
 	        .globl s__COMMONMEM
 	        .globl l__COMMONMEM
 		.globl s__INITIALIZER
@@ -54,11 +56,15 @@ start:		di
 		ld a, #'@'
 		out (0x2f), a
 		ld sp, #kstack_top
-		; move the common memory where it belongs    
+		; move the common memory where it belongs
 		ld hl, #s__INITIALIZER
 		ld de, #s__COMMONMEM
 		ld bc, #l__COMMONMEM
 		ldir
+		; move the discardable memory where it belongs    
+		ld de, #s__DISCARD
+		ld bc, #l__DISCARD
+		ldir
 		; then zero the data area
 		ld hl, #s__DATA
 		ld de, #s__DATA + 1
diff --git a/Kernel/platform-msx2/uzi.lnk b/Kernel/platform-msx2/uzi.lnk
index c5c74c83..df51002e 100644
--- a/Kernel/platform-msx2/uzi.lnk
+++ b/Kernel/platform-msx2/uzi.lnk
@@ -2,6 +2,7 @@
 -i uzi.ihx
 -b _CODE=0x0000
 -b _COMMONMEM=0xF000
+-b _DISCARD=0xE000
 -l z80
 platform-msx2/bootrom.rel
 platform-msx2/crt0.rel