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fix(serial): now using postinc instead of lea to do iteration over bytes

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Gale Misery Faraday
2025-09-25 17:20:38 -05:00
parent b8e5604d57
commit 59b0fcfa0a
1 changed files with 1 additions and 2 deletions
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src/serial.s
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@@ -52,7 +52,7 @@ NOTREADY@
POUTZSTR POUTZSTR
pshs a,b ; Preserve A and B pshs a,b ; Preserve A and B
NEXTC@ NEXTC@
ldb 0,x ; Get next char from X ldb ,x+ ; Get next char from X and increment X for next time
cmpb #$00 ; Make sure that we aren't at a terminator cmpb #$00 ; Make sure that we aren't at a terminator
beq END@ beq END@
NOTREADY@ NOTREADY@
@@ -60,7 +60,6 @@ NOTREADY@
bita UARTF_LSR_THRE bita UARTF_LSR_THRE
beq NOTREADY@ beq NOTREADY@
stb UART_THR ; Write char stb UART_THR ; Write char
leax 1,x ; Iter to next char. We X++ here because leax modifies CC.Z
bra NEXTC@ ; Iter to next char bra NEXTC@ ; Iter to next char
END@ END@
puls b,a ; Restore A and B puls b,a ; Restore A and B