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65816.js
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added the ability for the cpu to load in an array of bytes

This commit is contained in:
Preston Skupinski 2011-12-27 19:33:14 -05:00
parent 64fbd28610
commit 26ea82204f
2 changed files with 39 additions and 8 deletions
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26
cpu.js
View File

@ -6630,22 +6630,32 @@ window.CPU_65816 = function() {
/**
* Load given program into memory and prepare for execution.
* raw_hex could either be a string of hex numbers or an array
* of bytes.
*/
this.load_binary = function(raw_hex, memory_location_start, bank) {
var byte_buffer = [];
var byte_buffer = [],
i = 0;
if(typeof bank === "undefined") {
bank = 0;
}
for(var i = 0; i < raw_hex.length; i++) {
byte_buffer.push(raw_hex.charAt(i));
if(byte_buffer.length===2) {
this.mmu.store_byte_long(memory_location_start, bank,
parseInt(byte_buffer[0]+byte_buffer[1],
16));
if(typeof raw_hex === 'string') {
for(;i < raw_hex.length; i++) {
byte_buffer.push(raw_hex.charAt(i));
if(byte_buffer.length===2) {
this.mmu.store_byte_long(memory_location_start, bank,
parseInt(byte_buffer[0]+byte_buffer[1],
16));
memory_location_start++;
byte_buffer = [];
}
}
} else {
for(;i < raw_hex.length; i++) {
this.mmu.store_byte_long(memory_location_start, bank, raw_hex[i]);
memory_location_start++;
byte_buffer = [];
}
}
};

21
test/tests.js
View File

@ -26,6 +26,7 @@ function run_tests() {
test_subroutines();
test_mvn_and_mvp();
test_emulation_mode();
test_cpu_load_binary();
}
function test_lda() {
@ -1142,3 +1143,23 @@ function test_rep() {
"register");
});
}
function test_cpu_load_binary() {
test("Make sure that load binary can work with hex strings", function() {
var cpu = new CPU_65816();
cpu.load_binary("18fb", 0x8000);
equal(cpu.mmu.memory[cpu.r.k][0x8000], 0x18,
"$8000 should equal 0x18");
equal(cpu.mmu.memory[cpu.r.k][0x8001], 0xfb,
"$8001 should equal 0xfb");
});
test("Make sure that load_binary can work with arrays", function() {
var cpu = new CPU_65816();
cpu.load_binary([0x18, 0xfb], 0x8000);
equal(cpu.mmu.memory[cpu.r.k][0x8000], 0x18,
"$8000 should equal 0x18");
equal(cpu.mmu.memory[cpu.r.k][0x8001], 0xfb,
"$8001 should equal 0xfb");
});
}