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[KERNAL] comment cleanup, remove unused macros #324

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Mar 29, 2024
Merged

[KERNAL] comment cleanup, remove unused macros #324

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28 changes: 4 additions & 24 deletions inc/banks.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -15,26 +15,23 @@ BANK_BANNEX = $0C
BANK_X16EDIT = $0D ; Occupies two banks!
BANK_BASLOAD = $0F

; XXX these constant RAM addresses are KERNAL
; XXX implementation details and need to go away!
cbdos_flags= $0268
status = $0287 ; channel: status byte
jsrfar3n = $0298 ; jsrfar: RAM part, 65C816 native
jsrfar3 = $02c4 ; jsrfar: RAM part
jmpfr = $02df ; jsrfar: core jmp instruction
imparm = $82 ; jsrfar: temporary byte
stavec = $03b2 ; stash: argument
irq = $038b ; irq handler: RAM part this value MUST NEVER CHANGE starting from R42
nmi = $03b7 ; nmi handler: RAM trampoline this value MUST NEVER CHANGE starting from R42
irq = $038b ; irq handler: RAM part
nmi = $03b7 ; nmi handler: RAM trampoline

; editor keystroke vectors (currently used by MONITOR)
edkeyvec = $ac03
edkeybk = $ac05

; RAM banks
; 0: KVARS
; 1-9: GEOS BG SCREEN (320x200) [not currently enabled]
; 255: CBDOS
; 0: KEYMAP, KVARS, CMDR-DOS, etc
; 1-255: USER BANKS

.macro KVARS_START
.import kvswitch_tmp1, kvswitch_tmp2
Expand Down Expand Up @@ -90,20 +87,3 @@ edkeybk = $ac05
stx ram_bank
.endmacro

; Warning: KVARS_START_TRASH_NZ and KVARS_END_TRASH_NZ can cause a race
; condition if interrupts are enabled.
.macro KVARS_START_TRASH_NZ
.import kvswitch_tmp1, kvswitch_tmp2
sta kvswitch_tmp1
lda ram_bank
pha
stz ram_bank
lda kvswitch_tmp1
.endmacro

.macro KVARS_END_TRASH_NZ
sta kvswitch_tmp1
pla
sta ram_bank
lda kvswitch_tmp1
.endmacro
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