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Range-check inputs on kinematics example

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This commit is contained in:
Michael Martin 2014-05-14 23:03:52 -07:00
parent 2f7007ac1b
commit bfbe169364
1 changed files with 32 additions and 2 deletions
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34
examples/kinematics.oph
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@ -1,16 +1,44 @@
.include "../platform/c64header.oph"
.include "../platform/c64kernal.oph"
`print_str angle_prompt
* `print_str angle_prompt
jsr get_num
`fp_store theta
;; Range-check result: 1-90
`fp_subtract f_1
jsr fac1_sign
cmp #$ff
beq -
`fp_load theta
`fp_subtract f_90
jsr fac1_sign
cmp #$01
beq -
;; Range check passes, convert to radians
`fp_load theta
`fp_multiply f_pi
`fp_divide f_180
`fp_store theta
`print_str speed_prompt
* `print_str speed_prompt
jsr get_num
`fp_store speed
;; Range-check result: 1-100
`fp_subtract f_1
jsr fac1_sign
cmp #$ff
beq -
`fp_load speed
`fp_subtract f_100
jsr fac1_sign
cmp #$01
beq -
`fp_load theta
jsr sin_fac1
`fp_multiply speed
@ -69,6 +97,8 @@ height_1:
f_0_125: .byte 126,0,0,0,0
f_9_8: .byte 132,28,204,204,204
f_90: .byte 135,52,0,0,0
f_100: .byte 135,72,0,0,0
f_180: .byte 136,52,0,0,0
get_num: