mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-22 16:31:07 +00:00
131 lines
2.7 KiB
Plaintext
131 lines
2.7 KiB
Plaintext
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NEW
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AUTO 3,1
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.LIST OFF
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*--------------------------------------
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CODE.PushXFromYA
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jsr CODE.LDXYAI
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ldx #PCC.PushXFromYA.L
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ldy #0
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.1 lda PCC.PushXFromYA,y
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jsr CODE.EmitByte
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iny
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dex
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bne .1
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rts
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*--------------------------------------
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CODE.PopXToYA jsr CODE.LDXYAI
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ldx #PCC.PopXToYA.L
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ldy #0
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.1 lda PCC.PopXToYA,y
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jsr CODE.EmitByte
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iny
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dex
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bne .1
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rts
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*--------------------------------------
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CODE.PUSHI pha
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lda #$A9 LDA #imm
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jsr CODE.EmitByte
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pla
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jsr CODE.EmitByte
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bra CODE.PUSHA
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*--------------------------------------
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CODE.LDXYAI pha
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lda #$A2 LDX #imm
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jsr CODE.EmitByte
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txa
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jsr CODE.EmitByte
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lda #$A0 LDY #imm
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jsr CODE.EmitByte
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tya
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jsr CODE.EmitByte
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lda #$A9 LDA #imm
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jsr CODE.EmitByte
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pla
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bra CODE.EmitByte
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*--------------------------------------
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CODE.PUSHYA jsr CODE.PUSHA
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lda #$AA TYA
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jsr CODE.EmitByte
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*--------------------------------------
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CODE.PUSHA lda #$C6 DEC zp
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jsr CODE.EmitByte
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lda #pStack
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jsr CODE.EmitByte
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lda #$92 STA (zp)
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jsr CODE.EmitByte
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lda #pStack
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jmp CODE.EmitByte
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*--------------------------------------
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CODE.PULLYA jsr CODE.PULLA
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lda #$48 PHA
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jsr CODE.EmitByte
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jsr CODE.PULLA
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lda #$7A PLY
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bra CODE.EmitByte
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*--------------------------------------
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CODE.PULLA lda #$B2 LDA (zp)
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jsr CODE.EmitByte
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lda #pStack
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jsr CODE.EmitByte
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*--------------------------------------
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CODE.INCPSTACK lda #$E6 INC zp
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jsr CODE.EmitByte
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lda #pStack
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bra CODE.EmitByte
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*--------------------------------------
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CODE.JMPYX lda #$4C
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bra CODE.JSRYX.1
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*--------------------------------------
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CODE.JSRYX lda #$20 JSR
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CODE.JSRYX.1 jsr CODE.EmitByte
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tya
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jsr CODE.EmitByte
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txa
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bra CODE.EmitByte
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*--------------------------------------
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CODE.FPUCALL lda #$A2 LDX #imm
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jsr CODE.EmitByte
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txa
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jsr CODE.EmitByte
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lda #$20 JSR
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jsr CODE.EmitByte
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lda #A2osX.FPUCALL
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jsr CODE.EmitByte
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lda /A2osX.FPUCALL
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bra CODE.EmitByte
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*--------------------------------------
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CODE.SYSCALL lda #$A2 LDX #imm
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jsr CODE.EmitByte
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txa
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jsr CODE.EmitByte
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lda #$20 JSR
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jsr CODE.EmitByte
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lda #A2osX.SYSCALL
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jsr CODE.EmitByte
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lda /A2osX.SYSCALL
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*--------------------------------------
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CODE.EmitByte sta (ZPCSHCode)
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inc ZPCSHCode
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bne .8
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inc ZPCSHCode+1
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.8 rts
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*--------------------------------------
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MAN
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SAVE usr/src/bin/csh.s.code
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LOAD usr/src/bin/csh.s
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ASM
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