MatCat.OpenSource/8SA1Sim
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STx instructions mostly done

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MatCat 2021-04-11 21:35:51 -07:00
parent 91c53ef074
commit 95ee08a318
4 changed files with 1462 additions and 60 deletions
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4
examples/printstring.asm
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@ -13,7 +13,7 @@
SECTION .text
START: LDAB MYSTRING ; Put string address into AB
PHAB ; and push to the stack
PJSR PRINTSTRING ; Call PRINTSTRING routine
JSR PRINTSTRING ; Call PRINTSTRING routine
SECTION .printstring
PRINTSTRING: PLAB
@ -39,7 +39,7 @@ ROLLOVER: ADD D, $1
JMP PRINTLOOP ; Loop back and keep reading in the string
RETURN: PLAB ; To return we need to clean up our stack use first
PLA
PRTS
RTS
SECTION .data
DISPLAY equ D00000h

1513
js/isa/stx.js
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File diff suppressed because it is too large Load Diff

1
js/isa/tx.js
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@ -225,3 +225,4 @@ class IS_TDC extends Microcode_Instruction {
is_TDC = new IS_TDC;
Instructions.push(is_TDC);

2
js/main.js
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@ -28,7 +28,7 @@ cpu.RAM[0xD9] = is_LDAB_cda.Bytecode; // printloop
cpu.RAM[0xDA] = is_CMP.Bytecode;
cpu.RAM[0xDB] = is_BEQ_i.Bytecode;
cpu.RAM[0xDC] = v_return;
cpu.RAM[0xDD] = is_STAL_spin.Bytecode;
cpu.RAM[0xDD] = is_STAL_spa24.Bytecode;
cpu.RAM[0xDE] = is_ADD_gpci.Bytecode
cpu.RAM[0xDF] = 1;
cpu.RAM[0xE0] = is_BCS_i.Bytecode;