zxq5
7ccbd9258f
- updated comments in compiler codegen - deleted old dsa compiler outputs - settings for zed
81 lines
1.2 KiB
Plaintext
81 lines
1.2 KiB
Plaintext
include print: "./lib/io/print.dsa"
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dw idt: 0xFFFF0000
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dw stack: 0x10000
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init:
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// setup interrupt handlers
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ldw idt, idr
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lwi handle_hard_fault, rg0
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stw rg0, idr, 4
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// set up a stack.
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ldw stack, bpr
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mov bpr, spr
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db string: "I won, the game!"
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db hexbyte: 0xab
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dw hexword: 0x1234abcd
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db replace: "I lost"
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start:
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// test print string
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lwi string, rg0
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push rg0
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call print::print
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pop zero
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// test print hex byte.
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ldb hexbyte, rg0
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push rg0
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call print::print_hex_byte
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pop zero
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// test print hex word.
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ldw hexword, rg0
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push rg0
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call print::print_hex_word
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pop zero
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// test print char
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lli 0x40, rg0 // print @
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push rg0
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call print::print_byte
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pop zero
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// test newline
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call print::print_newline
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lwi string rg0
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push rg0
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call print::print
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// test print word
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lwi 0x31323334, rg0 // print 1234
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push rg0
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call print::print_word
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pop zero
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// test reset cursor pos
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call print::reset
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// test print string at reset pos
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lwi replace, rg0
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push rg0
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call print::print
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pop zero
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hlt
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// fault handler in case we fail DSA.
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dw hard_fault_err: "FATAL: Illegal Instruction or Memory Access!"
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handle_hard_fault:
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call print::clear
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call print::reset
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lwi hard_fault_err, rg0
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push rg0
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call print::print
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pop zero
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hlt
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