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avr: use macros instead of costly calls for SPI on ILI9341.

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This commit is contained in:
Martin Preuss
2026-01-24 01:03:31 +01:00
parent 2085ba6bbe
commit fdfc040d19
5 changed files with 79 additions and 24 deletions
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10
avr/modules/lcd2/ili9341/font6x8.asm
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@@ -64,10 +64,12 @@ ili9341Font6x8WriteChar_writeForeground:
mov r22, r2
mov r23, r3
ili9341Font6x8WriteChar_sendToDisplay:
mov r16, r23
rcall SPIHW_MasterTransfer ; (R16)
mov r16, r22
rcall SPIHW_MasterTransfer ; (R16)
; mov r16, r23
; rcall SPIHW_MasterTransfer ; (R16)
M_SPIHW_MASTER_SEND_BYTE r23
; mov r16, r22
; rcall SPIHW_MasterTransfer ; (R16)
M_SPIHW_MASTER_SEND_BYTE r22
ili9341Font6x8WriteChar_loop2end:
dec r24
brne ili9341Font6x8WriteChar_loop2