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Avoid indirect jmp with unknown vector address.

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This commit is contained in:
Oliver Schmidt
2014-01-26 18:10:01 +01:00
parent 83fcefa0af
commit 4452156d1a
3 changed files with 9 additions and 9 deletions
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10
libsrc/apple2/crt0.s
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@@ -107,7 +107,7 @@ exit: ldx #$02
txs ; Re-init stack pointer txs ; Re-init stack pointer
; We're done ; We're done
jmp (done) jmp done
.segment "INIT" .segment "INIT"
@@ -148,8 +148,8 @@ init: ldx #zpspace-1
; No BASIC.SYSTEM so quit to ProDOS dispatcher instead ; No BASIC.SYSTEM so quit to ProDOS dispatcher instead
lda #<quit lda #<quit
ldx #>quit ldx #>quit
sta done sta done+1
stx done+1 stx done+2
; No BASIC.SYSTEM so use addr of ProDOS system global page ; No BASIC.SYSTEM so use addr of ProDOS system global page
lda #<$BF00 lda #<$BF00
@@ -202,8 +202,8 @@ q_param:.byte $04 ; param_count
.data .data
; Location to jump to when we're done ; Final jump when we're done
done: .addr DOSWARM done: jmp DOSWARM ; Potentially patched at runtime
.segment "ZPSAVE" .segment "ZPSAVE"

4
libsrc/apple2/exec.s
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@@ -161,8 +161,8 @@ setbuf: lda #$00 ; Low byte
; Call loader stub after C libary shutdown ; Call loader stub after C libary shutdown
lda #<target lda #<target
ldx #>target ldx #>target
sta done sta done+1
stx done+1 stx done+2
; Initiate C libary shutdown ; Initiate C libary shutdown
jmp _exit jmp _exit

4
libsrc/apple2/reboot.s
View File

@@ -16,6 +16,6 @@ initreboot:
; Quit to PWRUP ; Quit to PWRUP
lda #<$FAA6 lda #<$FAA6
ldx #>$FAA6 ldx #>$FAA6
sta done sta done+1
stx done+1 stx done+2
rts rts