mirror of https://github.com/stid/woz64.git
71 lines
1.3 KiB
NASM
71 lines
1.3 KiB
NASM
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#importonce
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#import "../libs/module.asm"
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// ------------------------------------
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// MACROS
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// ------------------------------------
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.filenamespace Math
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* = * "Math Lin"
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// ------------------------------------
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// METHODS
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// ------------------------------------
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init: {
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rts
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}
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toDebug: {
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ModuleDefaultToDebug(module_name, version)
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rts
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}
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//------------------------------------------------------------------------------------
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multiply: {
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sei
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pha
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txa
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pha
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lda #$00
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ldx #$08
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clc
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m0: bcc.r m1
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clc
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adc MemMap.MATH.factor2
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m1: ror
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ror MemMap.MATH.factor1
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dex
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bpl.r m0
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ldx MemMap.MATH.factor1
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sta MemMap.MATH.result
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stx MemMap.MATH.result+1
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pla
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tax
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pla
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cli
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rts
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}
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// ------------------------------------
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// DATA
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// ------------------------------------
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* = * "Math Lib Data"
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version: .byte 1, 1, 0
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.encoding "screencode_mixed"
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module_name:
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.text "lib:math"
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.byte 0
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#import "../core/mem_map.asm"
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