302 lines
4.5 KiB
Plaintext
302 lines
4.5 KiB
Plaintext
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.nolist
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#include "tse.inc"
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.list
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.org saferam1-3
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.db $BB,$6D
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ret
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flags_base .equ 89F0h
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flags_size .equ 60
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sp_size .equ 2
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task_sp .equ 0
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task_flags .equ task_sp + sp_size
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task_end .equ task_flags + flags_size
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maxblocksize .equ 100h
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start:
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jr startkrnl
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jp verinfo
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jp chkprog
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jp exitshell
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jp taskswitch
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jp starttask
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jp endtask
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jp forceyield
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verinfo
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ld hl, %0000000001111111
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majorver .equ 1
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minorver .equ 6
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ld bc, (majorver*256)+minorver
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ret
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startkrnl:
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bcall(_runIndicOff)
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ld bc, flags_size
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ld hl, flags_base
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ld de, sysflags
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ldir
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ld hl, shellprog
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ld de, cprogram
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bcall(_mov9b)
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ld hl, cprogram
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rst 20h
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call starttask
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cp 0
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ret nz
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call chkEnoughForBuffer
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ld (sysstack), sp
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jp taskenter
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exitshell:
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ld hl, (sysstack)
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ld sp, hl
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call cpy_prgm_out
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ld hl, shellprog
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rst 20h
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call endtask
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bcall(_clrScrnFull)
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ld hl, 0
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ld (currow), hl
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ld hl, msg
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bcall(_puts)
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res onInterrupt, (iy+onFlags)
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ret
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forceyield:
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ld hl, shellprog
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rst 20h
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call taskswitch
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ret
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taskswitch:
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ld (tempword), sp
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ld hl, (pptr_preserve)
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push hl
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ld de, (tempword)
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ld (hl), e
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inc hl
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ld (hl), d
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ld hl, op1
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ld de, tprogram
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bcall(_mov9b)
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pop hl
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inc hl
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inc hl
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ex de, hl
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ld bc, flags_size
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ld hl, flags_base
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ldir
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ld hl, 0
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ld (currow), hl
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set textInverse, (iy+textflags)
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ld hl, plswait
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bcall(_puts)
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ld hl, (sysstack)
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ld sp, hl
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call chkEnoughForBuffer
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call cpy_prgm_out
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ld hl, tprogram
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ld de, cprogram
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bcall(_mov9b)
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taskenter:
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call chkEnoughForBuffer
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call cpy_prgm_in
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ld hl, (pptr_preserve)
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inc hl
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inc hl
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ld bc, flags_size
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ld de, flags_base
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ldir
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ld hl, (pptr_preserve)
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bcall(_ldHLind)
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ld sp, hl
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ret
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endtask:
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call chkprog
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cp 0
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ret nz
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ld hl, (fptr_prgtitle)
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ld a, (hl)
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cp ' '
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ld a, 4
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ret z
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ld hl, (fptr_memreq)
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bcall(_ldHLind)
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ex de, hl
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ld hl, task_end
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add hl, de
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push hl
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push hl
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ex de, hl
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ld hl, (fptr_end)
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or a
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sbc hl, de
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pop de
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bcall(_delmem)
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ld hl, (fptr_varsize)
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bcall(_ldHLind)
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pop bc
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or a
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sbc hl, bc
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ex de, hl
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ld hl, (fptr_varsize)
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ld (hl), e
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inc hl
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ld (hl), d
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ld hl, (fptr_prgtitle)
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ld a, ' '
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ld (hl), a
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xor a
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ret
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isr.power_on:
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ld a, kg_func
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rowread
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cp invmask(kb_2nd)
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jr nz, isr.2nd_raised
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res calc_on, (hl)
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ld hl, isr.shut_down
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push hl
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jr isr.wait_on
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isr.force_off:
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ld hl, os.status_flags
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res calc_on, (hl)
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isr.shut_down:
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di
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push af
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lcd_busy
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ld a, $02
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out (lcd_cmd_port), a
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pop af
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isr.off_loop:
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push af
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ld a, $36
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out (irq_stat_port), a
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ld a, $01
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out (irq_mask_port), a
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pop af
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ei
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halt
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jr isr.off_loop
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isr.2nd_raised:
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ld hl, os.contrast
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ld a, kg_arrows
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rowread
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bit kb_up, a
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jr nz, isr.up_raised
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isr.wait_up:
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ld a, kg_arrows
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rowread
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bit kb_up, a
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jr z, isr.wait_up
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ld a, (hl)
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inc a
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jr z, isr.contrast_max
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out (lcd_cmd_port), a
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ld (hl), a
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isr.contrast_max:
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ld a, sk_up
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ld (os.prev_key), a
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JR ISR.END
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ISR.UP_RAISED:
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BIT KB_DOWN, A
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JR NZ, ISR.END
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ISR.WAIT_DOWN:
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LD A, KG_ARROWS
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ROWREAD
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BIT KB_DOWN, A
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JR Z, ISR.WAIT_DOWN
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LD A, (HL)
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CP $C0
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JR Z, ISR.CONTRAST_MIN
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DEC A
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OUT (LCD_CMD_PORT), A
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LD (HL), A
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ISR.CONTRAST_MIN:
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LD A, SK_DOWN
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LD (OS.PREV_KEY), A
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JR ISR.END
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INIT:
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DI
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IM 1
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IN A, (HW_PORT)
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OR A
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AND $80
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JP NZ, INIT.BASIC
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LD A, $81
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OUT ($07), A
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DEC A
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OUT ($08), A
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XOR A
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OUT ($08), A
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OUT ($05), A
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OUT ($20), A
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OUT ($30), A
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OUT ($33), A
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OUT ($36), A
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LD A, $14
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OUT ($29), A
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INIT.BASIC:
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XOR A
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OUT (LINK_PORT), A
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LD A, $01
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OUT (IRQ_MASK_PORT), A
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LD A, $76
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OUT (IRQ_STAT_PORT), A
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LD A, $41
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OUT ($07), A
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LD SP, $0000
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LD HL, INIT.LCD_OUT
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LD B, 5
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INIT.LCD_LOOP:
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LCD_BUSY
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LD A, (HL)
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INC HL
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OUT (LCD_CMD_PORT), A
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DJNZ INIT.LCD_LOOP
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LD HL, $8000
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LD DE, $8001
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LD BC, $8000
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LD (HL), 0
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LDIR
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LD A, $F0
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LD (OS.CONTRAST), A
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LD A, BITMASK(CALC_ON) | BITMASK(APS_ON)
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LD (OS.STATUS_FLAGS), A
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LD HL, APS_TIME
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LD (OS.APS_TIMER), HL
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LD HL, USER_RAM
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LD (OS.FREE_MEM_PTR), HL
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LD HL, $0000
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LD (OS.TEMP_NUM), HL
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IN A, (IRQ_STAT_PORT)
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AND $08
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JR NZ, $-4
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CALL ISR.FORCE_OFF
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CALL ZP.CCLEAR
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CALL ZP.CREDRAW
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CALL ZP.VBUFDISP
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LD HL, INIT.STR_CLEAR
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CALL ZP.CPUTS
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CALL ZP.CDISP
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JP INIT.ALL_GOOD
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INIT.LCD_OUT .DB $18, $01, $F0, $40, $05
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INIT.STR_CLEAR .DB "MEM CLEARED", 0
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#INCLUDE "LIBSRC\\STRING\\TOKENIZE.Z80"
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.ECHO "\N"
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INIT.ALL_GOOD:
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EI
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ZP.CONSOLE: .EXPORT ZP.CONSOLE
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LD HL, ZP.CONSOLE
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PUSH HL
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LD HL, OS.ARG_PTRS
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LD DE, OS.ARG_PTRS + 1
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LD (HL), 0
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LD BC, 127
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LDIR
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CALL ZP.CGETS
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LD HL, OS.BUFFER
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LD D, H
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LD E, L
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LD IX, OS.ARG_PTRS
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CALL ZP.TOKENIZE
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LD A, C
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LD (OS.ARG_COUNT), A
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LD HL, (ARG(0))
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CALL ZP.STRUPR
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LDIR |