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cc65/libsrc/pce/vce.s
Oliver Schmidt 419eb700b5 Renamed INITBSS to INIT and INIT to ONCE.
The way we want to use the INITBSS segment - and especially the fact that it won't have the type bss on all ROM based targets - means that the name INITBSS is misleading. After all INIT is the best name from my perspective as it serves several purposes and therefore needs a rather generic name.

Unfortunately this means that the current INIT segment needs to be renamed too. Looking for a short (ideally 4 letter) name I came up with ONCE as it contains all code (and data) accessed only once during initialization.
2016-03-06 21:27:19 +01:00

21 lines
470 B
ArmAsm

.include "pce.inc"
.export vce_init
.segment "ONCE"
vce_init:
; Set CTA to zero
stz VCE_ADDR_LO
stz VCE_ADDR_HI
ldy #$01
vce_clear_bank:
ldx #$00
vce_clear_color:
stz VCE_DATA_LO ; Clear color (LSB)
stz VCE_DATA_HI ; Clear color (MSB)
dex
bne vce_clear_color
dey
bne vce_clear_bank
rts