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magic rom: fix hot switching to +3 mode when basic48 active

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UzixLS
2021-06-24 13:36:30 +03:00
parent 5f782ac1e9
commit a311692a37
1 changed files with 11 additions and 2 deletions
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13
rom_src/main.asm
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@ -130,15 +130,24 @@ save_config:
init_cpld: init_cpld:
.check_ram48k:
ld a, (cfg.ram) ; if ram == 48K - run basic48 ld a, (cfg.ram) ; if ram == 48K - run basic48
cp 1 ; ... cp 1 ; ...
jr nz, .do_load ; ... jr nz, .check_plus3_disabled ; ...
ld a, #10 ; ... ld a, #10 ; ...
ld bc, #7ffd ; ... ld bc, #7ffd ; ...
out (c), a ; ... out (c), a ; ...
ld a, #4 ; ... ld a, #4 ; ...
ld bc, #1ffd ; ... ld bc, #1ffd ; ...
out (c), a ; out (c), a ; ...
jr .do_load
.check_plus3_disabled:
ld a, (cfg.plus3) ; if plus3 disabled - set 1ffd rom to basic48
or a ; ... this is required for case when plus3 will be
jr nz, .do_load ; ... activated later by magic menu - this prevents
ld a, #4 ; ... hang if user activating plus3 while basic48 active
ld bc, #1ffd ; ...
out (c), a ; ...
.do_load: .do_load:
ld b, CFG_T ; B = registers count ld b, CFG_T ; B = registers count
ld c, #ff ; ld c, #ff ;