From cdccd0ad6e540a616b719594d2cef3bafb3e7f97 Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Wed, 19 Jan 2022 12:03:38 -0700
Subject: Relative jumping for cleaner objdump
---
src/drivers/uart.S | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
(limited to 'src')
diff --git a/src/drivers/uart.S b/src/drivers/uart.S
index 731e160..38957c2 100644
--- a/src/drivers/uart.S
+++ b/src/drivers/uart.S
@@ -4,10 +4,10 @@
uart_char:
mov r2, #0x1000
movt r2, #0x3f20
-uart_char.loop:
+1:
ldr r3, [r2, #24]
tst r3, #0b100000
- bne uart_char.loop
+ bne 1b
str r0, [r2]
bx lr
@@ -18,11 +18,11 @@ uart_string:
ldrb r0, [r0]
cmp r0, #0
popeq {r4, pc}
-uart_string.loop:
+1:
bl uart_char
ldrb r0, [r4, #1]!
cmp r0, #0
- bne uart_string.loop
+ bne 1b
pop {r4, pc}
.globl uart_hex
@@ -30,12 +30,12 @@ uart_hex:
push {r4, lr}
mov r2, #0x1000
movt r2, #0x3f20
-uart_hex.loop:
+1:
ldr r3, [r2, #24]
tst r3, #0b100000
- bne uart_hex.loop
+ bne 1b
mov r3, #7
-uart_hex.hloop:
+2:
mov r1, r0
asr r1, r3
asr r1, r3
@@ -44,10 +44,10 @@ uart_hex.hloop:
and r1, #0xf
add r1, #0x30
cmp r1, #0x3A
- blt uart_hex.print
+ blt 3f
add r1, #7
-uart_hex.print:
+3:
str r1, [r2]
subs r3, #1
- bge uart_hex.hloop // Jump back to wait for availablilty
+ bge 2b // Jump back to wait for availablilty
pop {r4, pc}
--
cgit v1.2.1