fumiama/c64-snake
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Merge pull request #3 from laffey98/main

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move over
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源文雨
2021-04-14 22:56:49 +08:00
committed by GitHub
parent 43aa9250b1 9a2c162723
commit 21e40a1dd4
1 changed files with 9 additions and 0 deletions
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9
move.asm
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@@ -21,12 +21,16 @@ move:
bne + bne +
lda #40 lda #40
jsr _propergate_tail jsr _propergate_tail
jsr _head_move
rts
* ldy #1 * ldy #1
lda (_stail),y lda (_stail),y
cmp #csnk ;right search cmp #csnk ;right search
bne + bne +
lda #1 lda #1
jsr _propergate_tail jsr _propergate_tail
jsr _head_move
rts
* jsr _copy_to_ptr * jsr _copy_to_ptr
lda #40 lda #40
sta _tmp sta _tmp
@@ -36,6 +40,8 @@ move:
cmp #csnk ;up search cmp #csnk ;up search
bne + bne +
jsr _copy_to_tail jsr _copy_to_tail
jsr _head_move
rts
* jsr _copy_to_ptr * jsr _copy_to_ptr
lda #1 lda #1
sta _tmp sta _tmp
@@ -44,11 +50,14 @@ move:
cmp #csnk ;left search cmp #csnk ;left search
bne _head_move bne _head_move
jsr _copy_to_tail jsr _copy_to_tail
jsr _head_move
rts
;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;
; head move ; head move
;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;
_head_move: _head_move:
;lda #go_l ;测试用 ;lda #go_l ;测试用
ldy #0
`_m_judge_dir_head go_d, 40, _propergate_head `_m_judge_dir_head go_d, 40, _propergate_head
`_m_judge_dir_head go_r, 1, _propergate_head `_m_judge_dir_head go_r, 1, _propergate_head
`_m_judge_dir_head go_l, 1, _borrow_head `_m_judge_dir_head go_l, 1, _borrow_head