From: Bernhard Urban <lewurm@gmail.com>
Date: Tue, 11 Jan 2011 17:11:31 +0000 (+0100)
Subject: uartint.s: testprogramm fuers proggen
X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=calu.git;a=commitdiff_plain;h=be305acf4a40fd92a8bbf1c433928693fba2e281

uartint.s: testprogramm fuers proggen
---

diff --git a/3_test/uartint.s b/3_test/uartint.s
index ed9df57..d2b7d58 100644
--- a/3_test/uartint.s
+++ b/3_test/uartint.s
@@ -1,7 +1,18 @@
 .data
 str:
-	.fill 0x41424344
-	.fill 0x0a0d0000
+	; "zlol"
+	.fill 0x5a4c4f4c
+	.fill 0x00000a0d
+
+int2hex:
+	;3210
+	.fill 0x33323130 
+	;7654
+	.fill 0x37363534
+	;ba98
+	.fill 0x62613938
+	;fedc
+	.fill 0x66656463
 .text
 	.define UART_BASE, 0x2000
 	.define UART_STATUS, 0x0
@@ -15,6 +26,8 @@ start:
 	br+ main
 	ret
 main:
+	xor r10, r10, r10
+	xor r7, r7, r7
 	ldi r10, UART_BASE@lo
 	ldih r10, UART_BASE@hi
 	ldw r5, UART_STATUS(r10)
@@ -25,19 +38,23 @@ main:
 	xor r1, r1, r1
 	xor r2, r2, r2
 	xor r3, r3, r3
-	; ldi r1, str
-	; ldi r1, 0x58
-	; stb r1, str(r3)
-	ldw r1, str(r3) 
+	ldi r1, str
 	ldi r2, 6
-	;call send_string
-	call send_byte
+	call send_string
+	xor r1, r1, r1
+	xor r2, r2, r2
+	ldi r1, 0x12bd
+	ldih r1, 0x1337
+	call debug_uint
+	ldi r1, 0x1337
+	ldih r1, 0x12bd
+	call debug_uint
 
 main2:
 	ldw r5, UART_STATUS(r10)
 	andx r5, UART_RECV_NEW
 	brzs+ main2 ; no new data?
-	ldw r7, UART_RECV(r10) ; load data
+	ldb r7, UART_RECV(r10) ; load data
 uartnrdy:
 	ldw r5, 0(r0)
 	andx r5, UART_TRANS_EMPTY
@@ -54,7 +71,7 @@ send_string_int:
 	reteq-
 	ldb r1, 0(r3)
 	call send_byte
-	addi r2, r2, 0-1
+	addis r2, r2, 0-1
 	addi r3, r3, 1
 	br send_string_int
 
@@ -62,5 +79,34 @@ send_byte:
 	ldw r9, UART_STATUS(r10)
 	andx r9, UART_TRANS_EMPTY
 	brnz+ send_byte ; branch if not zero
-	stw r1, UART_TRANS(r10)
+	stb r1, UART_TRANS(r10)
 	ret
+
+debug_uint:
+	addi r8, r1, 0
+	;usb_sendbuffersafe ("0x", 2);
+	xor r1, r1, r1
+	ldi r1, 0x30
+	call send_byte
+	xor r1, r1, r1
+	ldi r1, 0x78
+	call send_byte
+	;j = 0
+	xor r7, r7, r7
+	xor r6, r6, r6
+	ldi r6, int2hex@lo
+	ldih r6, int2hex@hi
+debug_unit_loop:
+	;for (j = 0; j < 8; ++j) {
+	cmpi r7, 8
+	reteq
+	;usb_sendbuffersafe (&int2hex[(i >> 28) & 0xf], 1);
+	lrs r1, r8, 28
+	andx r1, 0xf
+	add r9, r6, r1
+	ldb r1, 0(r9)
+	call send_byte
+	;i <<= 4;
+	lls r8, r8, 4
+	addi r7, r7, 1
+	br debug_unit_loop