From aa649c89ee2e399479c006cbb8a718a0f9bfbd7f Mon Sep 17 00:00:00 2001
From: David Voswinkel <david@optixx.org>
Date: Mon, 18 May 2009 21:23:17 +0200
Subject: [PATCH] o debug printf is working in asm

---
 snes/irqtest/Makefile    |  2 +-
 snes/irqtest/debug.asm   | 24 ++++++++----------------
 snes/irqtest/irqtest.asm | 19 +++++++++++++------
 3 files changed, 22 insertions(+), 23 deletions(-)

diff --git a/snes/irqtest/Makefile b/snes/irqtest/Makefile
index 40843ab..5337b5c 100644
--- a/snes/irqtest/Makefile
+++ b/snes/irqtest/Makefile
@@ -27,7 +27,7 @@ optixx.inc: optixx.pcx
 	$(AS) -o $?  $@
 
 $(APP):  linkfile $(GFX) $(OBJS) $(GFX)
-	$(LD) -vr linkerfile.prj  $@
+	$(LD) -vri linkerfile.prj  $@
 
 clean:
 	rm -vf $(APP) *.prj *.o
diff --git a/snes/irqtest/debug.asm b/snes/irqtest/debug.asm
index 4936f6f..7dc67b2 100644
--- a/snes/irqtest/debug.asm
+++ b/snes/irqtest/debug.asm
@@ -1,30 +1,22 @@
+.define	debug_pointer			$0080 
 
 .MACRO printf
-    REP #$38	; mem/A = 16 bit, X/Y = 16 bit
-    SEP #$20
-    lda.w str_NMI
-    sta.w debug_pointer
-    ldy #0
-    jsr do_printf
-    REP #$30	; mem/A = 16 bit, X/Y = 16 bit
-    SEP #$20
-    
+    ldy.w   #\1                 ; load add of the string
+    sty.w   debug_pointer       ; store address in defined mem area
+    ldy     #0                  ; zero y
+    jsr     do_printf           
 .ENDM
 
 
-.define	debug_pointer			$0000 
-
 
 .BANK 0
-.ORG 0
 .SECTION "debug" SEMIFREE
 
-
 do_printf:
-	lda     (debug_pointer),y       ; get ascii text data
-	sta     $3000
+    lda     (debug_pointer),y    ; get address of string
+	sta     $3000               ; write to MMIO debug reg
 	iny
-	cpy     #5
+	cmp     #0                  ; len 5
 	bne     do_printf
     rts
 .ENDs
diff --git a/snes/irqtest/irqtest.asm b/snes/irqtest/irqtest.asm
index bda9fd3..ba8ed8e 100644
--- a/snes/irqtest/irqtest.asm
+++ b/snes/irqtest/irqtest.asm
@@ -53,7 +53,14 @@ Start_do:
     lda  #67
     sta  $3000
     
-    printf
+    printf str_COP
+    
+    lda  #65
+    sta  $3000
+    lda  #66
+    sta  $3000
+    lda  #67
+    sta  $3000
     
 Infinity:
     jmp Infinity    ; bwa hahahahaha
@@ -93,15 +100,15 @@ SetupVideo:
 
 
 str_COP:
-    .db "COP\n"
+    .db "COP",10,0
 str_ABORT:
-    .db "ABORT\n"
+    .db "ABORT",10,0
 str_NMI:
-    .db "NMI\n"
+    .db "NMI",10,0
 str_RESET:
-    .db "RESET\n"
+    .db "RESET",10,0
 str_IRQBRK:
-    .db "IRQBRK\n"
+    .db "IRQBRK",10,0
 
 
 ;============================================================================