wn/rgb-driver-01
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refactor names, 2

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This commit is contained in:
Wolfgang Hottgenroth 2024-02-27 17:34:11 +01:00
parent 75598f973a
commit 2435cee771
2 changed files with 8 additions and 6 deletions
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2
colors.S
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@ -3,9 +3,9 @@
.section ".rodata","a" .section ".rodata","a"
screendata_tmpl: screendata_tmpl:
.global screendata_tmpl .global screendata_tmpl
.byte _violet
.byte _off .byte _off
.byte _off .byte _off
.byte _green
screendataend_tmpl: screendataend_tmpl:
.byte 0xff .byte 0xff

12
main.S
View File

@ -9,6 +9,8 @@
#define SIGNAL_REGISTER r4 #define SIGNAL_REGISTER r4
#define DATA_NEXT_REGISTER r7
#define DATA_END_REGISTER r8
.section ".data" .section ".data"
screendata: screendata:
@ -81,9 +83,9 @@ init:
mov.b #0x01, SIGNAL_REGISTER mov.b #0x01, SIGNAL_REGISTER
;; screen data start/next into r7 ;; screen data start/next into r7
mov.w #screendata, r7 mov.w #screendata, DATA_NEXT_REGISTER
;; screen data end into r8 ;; screen data end into r8
mov.w #screendataend, r8 mov.w #screendataend, DATA_END_REGISTER
;; start timer in up mode ;; start timer in up mode
bis.w #MC0,&TA1CTL bis.w #MC0,&TA1CTL
@ -97,12 +99,12 @@ init:
;; r5: data byte to be handled by isr ;; r5: data byte to be handled by isr
mainloop: mainloop:
;; prepare next byte to handle by isr ;; prepare next byte to handle by isr
cmp.w r7,r8 cmp.w DATA_NEXT_REGISTER, DATA_END_REGISTER
jz mainloop_data_done jz mainloop_data_done
;; load next data byte ;; load next data byte
mov.b @r7,r9 mov.b @DATA_NEXT_REGISTER,r9
inc.w r7 inc.w DATA_NEXT_REGISTER
;; multiple color code by four to get color data ;; multiple color code by four to get color data
rla.b r9 rla.b r9