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GWRAM.SYSTEM
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ram2gs_asm.s: move _swap and _unswap procedures to top of file

This commit is contained in:
Zane Kaminski 2021-02-06 02:55:17 -05:00
parent d52bbe4757
commit 6f5d9731af
1 changed files with 48 additions and 49 deletions
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97
ram2gs_asm.s
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@ -40,6 +40,54 @@
.segment "CODE"
.proc _unswap: near
.A8
.I8
; Save current bank and accumulator
phb
pha
; Switch to bank 0xFB
lda #$FB
pha
plb
; Submit C1AD
lda #$C1
sta $FFFE
lda #$AD
sta $FFFF
; Pull and submit command
lda #$00
sta $FFFD
; Restore accumulator and bank and return
pla
plb
rts
.endproc
.proc _swap: near
.A8
.I8
; Save current bank and accumulator
phb
pha
; Switch to bank 0xFB
lda #$FB
pha
plb
; Submit C1AD
lda #$C1
sta $FFFE
lda #$AD
sta $FFFF
; Pull and submit command
lda #$01
sta $FFFD
; Restore accumulator and bank and return
pla
plb
rts
.endproc
.proc _ram2gs_getsize: near
.A8
.I8
@ -100,55 +148,6 @@
rts
.endproc
.proc _unswap: near
.A8
.I8
; Save current bank and accumulator
phb
pha
; Switch to bank 0xFB
lda #$FB
pha
plb
; Submit C1AD
lda #$C1
sta $FFFE
lda #$AD
sta $FFFF
; Pull and submit command
lda #$00
sta $FFFD
; Restore accumulator and bank and return
pla
plb
rts
.endproc
.proc _swap: near
.A8
.I8
; Save current bank and accumulator
phb
pha
; Switch to bank 0xFB
lda #$FB
pha
plb
; Submit C1AD
lda #$C1
sta $FFFE
lda #$AD
sta $FFFF
; Pull and submit command
lda #$01
sta $FFFD
; Restore accumulator and bank and return
pla
plb
rts
.endproc
.proc _ram2gs_detect: near
.A8
.I8