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code beautified

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This commit is contained in:
Wolfgang Hottgenroth 2024-03-05 16:18:19 +01:00
parent 49d78662e2
commit fbe779d3b8
2 changed files with 12 additions and 75 deletions
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65
colors.S
View File

@ -1,71 +1,6 @@
#include "colors.h"
.section ".rodata","a"
screendata_tmpl:
.global screendata_tmpl
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
.byte _red
screendataend_tmpl:
.byte 0xff
;; color definitions according to
;; https://learn.sparkfun.com/tutorials/lilypad-protosnap-plus-activity-guide/3-custom-color-mixing
colors:

22
main.S
View File

@ -25,9 +25,6 @@
;; ----------------------------------------------------
;; 2.48us
#define TIMER_COMPLETE 45
;; 1.18us
@ -71,6 +68,7 @@ data_forward_pointer:
;; @progbits is a hint for the linker to allocate this section into
;; program memory (flash)
.section ".text","ax",@progbits
;; ----------------------------------------------------
_start:
;; disable watchdog
mov.w #WDTPW|WDTHOLD,&WDTCTL
@ -84,8 +82,6 @@ _start:
;; initialize stack pointer with value from linker
mov.w #__stack, SP
init:
;; configuration of GPIO Ports
;; BIT0: data bit
@ -112,7 +108,6 @@ init:
mov.w #OUTMOD_7,&TA1CCTL1
mov.w #OUTMOD_7,&TA1CCTL2
;; make sure the isr will not immediately start
mov.b #SIGNAL_INIT_VALUE, SIGNAL_REGISTER
@ -121,6 +116,8 @@ init:
;; enable interrupts
eint
;; ----------------------------------------------------
mainloop:
call #forwardscreen_init
call #resetscreen
@ -134,6 +131,7 @@ mainloop_draw:
jmp mainloop_draw
;; ----------------------------------------------------
wait:
push r11
push r12
@ -151,10 +149,13 @@ wait_continue_2:
pop r11
ret
;; ----------------------------------------------------
forwardscreen_init:
mov.w #screendata, &data_forward_pointer
ret
;; ----------------------------------------------------
forwardscreen:
push r8
push r10
@ -163,7 +164,7 @@ forwardscreen:
mov.w data_forward_pointer, r10
mov.b #_off, @r10
inc.w r10
mov.b #_red, @r10
mov.b #_green, @r10
cmp.w r10, r8
jnz forwardscreen_done
mov.w #screendata, r10
@ -175,6 +176,7 @@ forwardscreen_done:
ret
;; ----------------------------------------------------
resetscreen:
push r7
push r8
@ -193,6 +195,7 @@ resetscreen_continue:
ret
;; ----------------------------------------------------
drawscreen:
push r7
push r8
@ -266,8 +269,7 @@ drawscreen_data_done:
ret
;; ----------------------------------------------------
; --- timer isr ---
;; r6: exclusively used by isr as bit-counter
timer1_a0_isr:
@ -308,7 +310,7 @@ timer1_a0_isr_exit:
reti
;; ----------------------------------------------------
.section "__interrupt_vector_14","ax",@progbits
.word timer1_a0_isr