rp2040

commit e15aac2f4537c9045462db34543a5bd779dc8520
parent e0c80f5f546873bc1bc886eacfe784ab3c29c457
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Sun, 26 Mar 2023 09:27:46 +0900

add function names

Diffstat:
M
as.s
 | 
4
++++
M
main.c
 | 
5
++++-

2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/as.s b/as.s
@@ -144,6 +144,8 @@ reset_chk:
 	beq reset_chk
 	bx lr
 
+	.global putchar
+putchar:
 uart0_write:
 	push {r4, r5, r6, r7, lr}
 	mov r4, #0xFF
@@ -157,6 +159,8 @@ uart0_txff:
 	str r4, [r5, #0] // UART0_UARTDR
 	pop {r4, r5, r6, r7, pc}
 
+	.global getchar
+getchar:
 uart0_read:
 	push {r4, r5, r6, lr}
 	ldr r4, uart0_base
diff --git a/main.c b/main.c
@@ -2,9 +2,12 @@ void
 main(void)
 {
 	char *s = "unko\n";
+	char *c;
 	init();
 	while(1) {
-		print(s);
+		for (c = s; *c != '\0'; c++) {
+			putchar(*c);
+		}
 		delay();
 	}
 }