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authorChristian Cunningham <cc@localhost>2022-01-19 12:03:38 -0700
committerChristian Cunningham <cc@localhost>2022-01-19 12:03:38 -0700
commitcdccd0ad6e540a616b719594d2cef3bafb3e7f97 (patch)
tree6099ad02725928f961bfa32833924d36f27eda69
parent6913e2fcbc9e876c1eb40dbf69301bc5e0aca4b7 (diff)
Relative jumping for cleaner objdump
-rw-r--r--src/drivers/uart.S20
1 files changed, 10 insertions, 10 deletions
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}