Files
open-roms/c64/kernal/banking/mega65_map_helpers.s
T

57 lines
477 B
ArmAsm

// #LAYOUT# M65 KERNAL_0 #TAKE
// #LAYOUT# * * #IGNORE
//
// ROM mapping routines for Mega65
//
// Available memory maps:
// - NORMAL - nothing mapped in
// - KERNAL_1 - for calling KERNAL_1 segment code
map_NORMAL:
php
pha
phx
phy
phz
lda #$00
tax
tay
taz
// FALLTROUGH
map_end:
map
eom
plz
ply
plx
pla
plp
rts
map_KERNAL_1:
php
pha
phx
phy
phz
lda #$00
tay
taz
ldx #$42 // 0x4000 <- map 8KB from 0x20000
bne map_end