36 lines
2.3 KiB
Plaintext
36 lines
2.3 KiB
Plaintext
%include include/gigatron.i
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_startAddress_ EQU 0x0200 ; entry point for the code, if this is missing defaults to 0x0200
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_callTable_ EQU 0x007E ; call addresses are automatically stored here by the assembler, it grows downwards
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; *NOTE* gt1 spec only allows for one zero page segment, .vasm files use this for the call table
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; do *NOT* make this address higher than 0x00BE, it will conflict with future ROM loading mechanisms
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; do *NOT* define constants, (DB or DW), between 0x30 -> 0x44 and 0xc0 -> 0xFF, these addresses are
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; used by the loader and the vCPU stack, you can create variables in these areas as long as you don't
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; corrupt your nested CALL return addresses on the stack
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_singleStepWatch_ EQU giga_frameCount ; the single step debugger watches this variable location to decide when to step,
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; choose a variable that is updated often
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_cpuUsageAddressA_ EQU 0x0600 ; these two addresses are used to build an exclusion zone around vCPU code that will not be counted
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_cpuUsageAddressB_ EQU 0x0620 ; in the vCPU usage meter, (almost always used to exclude your VBlank polling loop)
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;data0 EQU 0x30
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data1 EQU 0x44
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data2 EQU 0x82
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data3 EQU 0xA0
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data4 EQU 0xB0
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data5 EQU 0xC0
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;data0 DW 0x3377
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data1 DW 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
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data2 DW 0xdead 0xbeef 0xffff 0xfffe 0xfffd 0xfffc 0xfffb 0xfffa 0xfff9 0xfff8 0xfff7 0xfff6 0xfff5 0xfff4 0xfff3
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data3 DB 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
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data4 DB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
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data5 DW 0x0101 0x0202 0x0303 0x0404 0x0505 0x0606 0x0707 0x0808 0x0909 0x0a0a 0x0b0b 0x0c0c 0x0d0d 0x0e0e 0x0f0f 0xaa55
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entry_point EQU 0x0200
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entry_point BRA entry_point |